Heading Control System

medium 188 / 188 models (Inspector)

A heading control system is the basic-mode autopilot function: it drives the steering gear to hold a set compass heading using gyro feedback and adjustable rudder gain and counter-rudder settings, without following a planned track the way a track control system does.

Read more — Heading Control System explained ▾

What sets a heading control system apart

Within autopilot functions, heading control is the simplest mode: the system takes a heading set by the officer of the watch and drives the steering gear to hold it, correcting for yaw from wind, sea and current using feedback from the gyrocompass. It does not know or care where the ship's track lies on the chart; a track control system, by contrast, drives the ship along a planned route from the ECDIS, automatically adjusting heading at waypoints and correcting for cross-track error. Heading control is what is actually in use for most of an ocean passage even on ships fitted with track control, because it is simpler to monitor and sufficient once the ship is well clear of other traffic and hazards.

Heading control loop — Signal loop of a heading control autopilot: the gyrocompass and set-heading dial feed the control unit, which drives the steering gear and rudder using gain and counter-rudder settings, with rudder angle fed back to close the loop.

Main components

Control unit

Takes the set heading from the operator, compares it continuously to the actual heading from the gyrocompass, and generates a rudder demand signal to correct any error.

Adaptive control parameters

Rudder gain, how much rudder is applied per degree of heading error, and counter-rudder, how early the system starts opposing the turn as the ship approaches the set heading, are tuned to the vessel's loaded condition and sea state; wrongly set, the ship either wanders off heading or oversteers into a hunting oscillation.

Interface to steering gear

Sends the rudder demand to the steering gear's control system, which drives the actual hydraulic rudder actuator; the autopilot itself does not move the rudder, it commands the steering gear to do so.

Off-heading alarm

Monitors deviation from the set heading and alarms if it exceeds a set limit, a required safety function since an unmonitored autopilot can carry a ship well off course before anyone notices.

Selection and sizing

Compatibility with the vessel's existing gyrocompass and steering gear interface, since heading control systems are rarely a clean standalone fit on a retrofit.
Adaptive or self-tuning capability, which reduces the manual retuning burden as loading and sea state change through a voyage.
Redundancy and changeover arrangements to manual or emergency steering, tested as part of the vessel's steering gear tests.
Integration requirement: whether the system needs to interoperate with a track control system already fitted or planned.

Regulations and class

SOLAS Ch. V requires steering gear performance standards that heading control systems must not compromise, including the ability to revert quickly to manual steering. IMO performance standards for heading and track control systems set minimum requirements for accuracy, alarm functions and changeover behaviour. Class societies require periodic testing of the steering control system, including changeover between control modes, typically verified during the mandatory steering gear test carried out before departure and at other required intervals.

Typical faults

Fault	Cause	Consequence
Hunting, repeated over-correction	Rudder gain and counter-rudder not retuned for a change in loading or sea state	Excess rudder activity, wasted fuel, faster steering gear wear
Slow response in following seas	Parameters tuned for head seas applied unchanged in a following sea	Larger heading excursions before correction takes effect
Undetected drift off heading	Off-heading alarm limit set too wide, or muted without being reset	Ship well off intended heading before the watch notices
Loss of control on changeover	Poorly tested or unclear procedure for reverting from autopilot to manual steering	Delay regaining rudder control at a critical moment, for example entering a traffic scheme

What to look for in a supplier

Type approval to the applicable IMO performance standard for heading, and if fitted track, control.
Clear, tested interface specification against the vessel's actual gyrocompass and steering gear model.
Documented adaptive tuning behaviour, and manual override of gain and counter-rudder for the watch officer when needed.
Established service support for software updates and periodic performance verification.

Retune rudder gain and counter-rudder after any significant change in loading condition or when heading into markedly different sea conditions; a setting that was smooth in ballast can hunt badly when the ship is loaded deep.

Inspector Mode Show All 188 / 188 with inspector value

10 manufacturers · 188 models

Kongsberg

TENFJORD FR Rotary Vane unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Service: Verify heading inputs, rudder feedback, control-mode transfers, alarm functions and communication with the steering gear. Inspect control cabinets and bridge equipment for loose connections, corrosion and cooling problems. Tuning values, test tolerances and acceptance limits must be taken from the vessel-specific and manufacturer documentation.

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD FC Cylinder unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Service: Compare indicated data and system response with independent references and investigate persistent disagreement. Inspect sensors, antennas, cabling, power supplies, displays and network interfaces applicable to the installation. Verify required alarms and outputs to connected bridge systems using approved procedures. Back up configuration before authorized software or hardware changes. Protect exposed sensors and antennas from paint, deposits and water ingress. Refer to the manufacturer documentation for the exact figure for test, calibration, alignment and recovery procedures.

Spare Parts: Keep fuses, selected power-supply and interface modules, cables or connectors and manufacturer-recommended sensor or electronic spares. Replacement core units must remain compatible with the approved bridge installation. Preserve calibration, identity and configuration data.

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FEX unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Service: Verify valid heading and steering inputs and compare commanded behavior with actual rudder and vessel response using approved test procedures. Inspect bridge controls, power supplies, network interfaces and steering-control connections for faults or loose terminals. Function-test changeover between automatic and manual steering and confirm expected alarms following loss of an input. Check rudder feedback and heading offsets for consistency with independent indications. Back up configuration before approved software or hardware changes. Refer to the manufacturer documentation for the exact figure for adjustment, test and commissioning procedures.

Spare Parts: Keep fuses, control switches, selected interface or power-supply modules, rudder-feedback components and manufacturer-recommended electronic spares. Critical steering interfaces may justify replacement control units or sensors according to vessel redundancy. Preserve approved software and configuration data.

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

TENFJORD FR 100 kNm unverified

Torque

100 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FR 200 kNm unverified

Torque

200 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FR 400 kNm unverified

Torque

400 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FR 600 kNm unverified

Torque

600 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FR 900 kNm unverified

Torque

900 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD FR 1200 kNm unverified

Torque

1200 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

Rolls-Royce / Kongsberg TENFJORD 800kNm Rotary

TENFJORD 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

TENFJORD 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or bus-data loss can disable automatic steering, seen as heading-source alarms or transfer to manual control
Rudder-feedback faults can make the controller misread steering response, noticed as hunting, excessive correction or feedback alarms
Control-unit or power-supply faults can cause resets or loss of automatic mode, seen as unavailable autopilot functions
Poorly tuned or corrupted control parameters can cause unstable steering, noticed as yawing or frequent rudder activity
Cabling, connector or interface faults can interrupt commands to the steering system, seen as intermittent mode changes or command mismatch alarms

Spare Parts: Carry maker-approved fuses, relays or interface components, feedback/sensor spares where fitted and common control-panel consumables.

Use Cases: Installed on merchant ships, offshore vessels and naval or specialist craft to reduce manual steering workload and support accurate course keeping.

Datasheet

TENFJORD 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor, antenna or transducer fault caused by damage, fouling, water ingress or electronics failure, resulting in missing, unstable or implausible navigation data
Power-supply failure caused by breaker, converter or wiring faults, resulting in loss of indication or repeated restarts
Network or interface failure caused by damaged cabling, port faults or configuration changes, resulting in loss of data to connected bridge systems
Display, processor or control failure caused by hardware or software faults, resulting in frozen, blank or unavailable functions
Calibration, alignment or configuration error caused by incorrect setup or maintenance, resulting in persistent disagreement with independent references

Use Cases: It is used for automatic heading control on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.

Datasheet

MacTaggart Scott

MSG-320 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Service: Compare indications with independent references, inspect sensors and cable routes, verify power supplies and alarms, and test changeover or backup arrangements where fitted. For heading-control equipment, examine the connected steering feedback and response as well as the bridge controller. Refer to manufacturer documentation for exact calibration and acceptance values.

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

MSG-520 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

MSG-720 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

MSG Rotary 100 kNm unverified

Torque

100 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG Rotary 200 kNm unverified

Torque

200 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG Rotary 400 kNm unverified

Torque

400 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG Rotary 600 kNm unverified

Torque

600 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG Rotary 900 kNm unverified

Torque

900 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG Rotary 1200 kNm unverified

Torque

1200 kNm

Type

Rotary Vane

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Service: Verify heading input, rudder feedback, mode selection, steering response, alarms and changeover to manual steering. Check interfaces to gyro, steering gear and navigation systems and review unexpected rudder activity or fault history. Test automatic and manual changeover under the approved bridge procedure. Refer to the manufacturer documentation for the exact figure for tuning and acceptance criteria.

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

MSG 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-input failure caused by gyro, compass or network faults, resulting in alarms, unstable steering or loss of automatic mode
Steering-interface fault caused by wiring, actuator, solenoid or follow-up problems, resulting in poor rudder response or inability to control heading
Control-unit or display failure caused by power, hardware or software faults, resulting in frozen controls, resets or loss of function
Rudder-feedback error caused by sensor or linkage deterioration, resulting in hunting, incorrect rudder indication or steering instability
Power-supply or communication failure caused by breaker, converter, network or cabling faults, resulting in repeated alarms or system shutdown

Use Cases: Automatic heading control and bridge steering support on merchant ships, offshore vessels, passenger vessels and workboats.

Datasheet

MSG 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

Jastram

JR2000 Rotary unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Loss of electrical, hydraulic, pneumatic, or other service supply caused by a tripped protection device, leakage, blockage, or upstream fault results in failed starting or loss of function
Mechanical wear, corrosion, fouling, or contamination of moving and wetted parts causes increased noise, leakage, sticking, vibration, or reduced performance
Seal, gasket, hose, cable, or connection deterioration from age, heat, vibration, or environmental exposure produces visible leakage, intermittent signals, or loss of pressure
Sensor, switch, actuator, relay, or control-system faults can cause incorrect indication, nuisance alarms, failed automatic sequences, or loss of remote control
Incorrect adjustment, assembly, or maintenance can lead to unstable operation, recurrent alarms, or performance that differs from the vessel's normal baseline

Service: Inspect the unit for leakage, corrosion, contamination, loose connections, abnormal noise or vibration, condition of guards and mountings, service supplies, controls, alarms, and functional performance. Use the vessel maintenance history to identify deterioration trends and refer to the manufacturer documentation for exact settings, tolerances, test values, and overhaul criteria.

Spare Parts: Keep the manufacturer-recommended seals and gaskets, filters where fitted, fuses or protection items, common sensors and switches, and critical actuator, control, or wear components appropriate to the installed configuration. Exact part numbers and quantities must come from the manufacturer spare-parts documentation.

Use Cases: Used on vessel types fitted with autopilot & bridge systems equipment, including merchant, offshore, passenger, fishing, or workboat installations where this specific heading control system duty is required.

Datasheet

JR3000 Cylinder unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR4500 Ram unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Loss of electrical, hydraulic, pneumatic, or other service supply caused by a tripped protection device, leakage, blockage, or upstream fault results in failed starting or loss of function
Mechanical wear, corrosion, fouling, or contamination of moving and wetted parts causes increased noise, leakage, sticking, vibration, or reduced performance
Seal, gasket, hose, cable, or connection deterioration from age, heat, vibration, or environmental exposure produces visible leakage, intermittent signals, or loss of pressure
Sensor, switch, actuator, relay, or control-system faults can cause incorrect indication, nuisance alarms, failed automatic sequences, or loss of remote control
Incorrect adjustment, assembly, or maintenance can lead to unstable operation, recurrent alarms, or performance that differs from the vessel's normal baseline

Datasheet

NFU Tiller W-10 unverified

Type

Tiller Control

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

NFU Tiller W-20 unverified

Type

Tiller Control

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

NFU Tiller W-30 unverified

Type

Tiller Control

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FU Tiller W-40 unverified

Type

Tiller Control

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FU Tiller W-50 unverified

Type

Tiller Control

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Service: Test manual and automatic mode transfer, heading inputs, rudder feedback, alarms, steering commands, emergency override, and connected navigation interfaces. Tuning and exact acceptance criteria must follow sea-trial data, vessel procedures, and manufacturer documentation.

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

JR 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

JR 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

JR 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

JR 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

JR 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

Hatlapa

Steering Gear Type A unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Service: Verify heading inputs, rudder feedback, steering modes, changeover/interlocks, alarms, controller health and power supplies; conduct steering and autopilot functional tests under safe operating conditions.

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Use Cases: Used on commercial, passenger, naval and offshore vessels for automatic heading control and bridge steering integration. This entry applies specifically to the Heading Control System variant identified as Hatlapa Steering Gear Type A.

Datasheet

Steering Gear Type B unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

Steering Gear Type C unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

HSG 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

HSG 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

HSG 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

Rexroth / Bosch

SL-700 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

SL-1200 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

SL-1500 unverified

Type

Steering Gear

IMO Compliant

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

SL 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

SL 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal bridge indication
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls, power-supply modules and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

SL 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

Frydenbo

FRY 50kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 80kNm Rotary unverified

Torque knm

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 100kNm Rotary unverified

Torque knm

100

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 150kNm Rotary unverified

Torque knm

150

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 200kNm Rotary unverified

Torque knm

200

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 200kNm Ram unverified

Torque knm

200

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 300kNm Rotary unverified

Torque knm

300

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 300kNm Ram unverified

Torque knm

300

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 400kNm Rotary unverified

Torque knm

400

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 400kNm Ram unverified

Torque knm

400

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 500kNm Rotary unverified

Torque knm

500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 500kNm Ram unverified

Torque knm

500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 600kNm Rotary unverified

Torque knm

600

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 600kNm Ram unverified

Torque knm

600

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 800kNm Rotary unverified

Torque knm

800

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 800kNm Ram unverified

Torque knm

800

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 1000kNm Rotary unverified

Torque knm

1000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 1000kNm Ram unverified

Torque knm

1000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 1500kNm Rotary unverified

Torque knm

1500

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 1500kNm Ram unverified

Torque knm

1500

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 2000kNm Rotary unverified

Torque knm

2000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 2000kNm Ram unverified

Torque knm

2000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

FRY 3000kNm Rotary unverified

Torque knm

3000

Type

Rotary Vane Steering Gear

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

FRY 3000kNm Ram unverified

Torque knm

3000

Type

Ram Type Steering Gear

Common Failures & Inspection Points

Sensor drift, damage or loss of reference caused by ageing, magnetic influence, antenna issues or internal faults can produce unstable or incorrect heading or position information
Control or interface failure caused by electronics, cabling or network faults can create steering alarms, rejected inputs or loss of automatic control
Power-supply interruption caused by loose connections, protection trips or internal failure can result in resets or total loss of indication
Incorrect calibration or configuration after maintenance can show as persistent offset, poor course keeping or disagreement with independent references
Mechanical wear in connected steering components where applicable can cause slow response, hunting, leakage or increased steering error

Spare Parts: Useful spares include maker-approved fuses, interface modules, power-supply parts, display or control modules, connectors and sensor accessories appropriate to the installed system.

Use Cases: Merchant, passenger, offshore and specialist vessels requiring heading, position, speed or automatic steering information at the bridge.

Datasheet

ComNav Marine

HD30 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal autopilot display
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Service: Verify heading input, rudder feedback, mode selection, steering response, alarms and changeover to manual steering. Check interfaces to gyro, steering gear and navigation systems. Review unexpected rudder activity or fault history. Exact tuning parameters and acceptance tests require manufacturer and vessel documentation.

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

HD35 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal autopilot display
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Service: Verify heading input, rudder feedback, mode selection, steering response, alarms and changeover to manual steering. Check interfaces to gyro, steering gear and navigation systems. Review unexpected rudder activity or fault history. Exact tuning parameters and acceptance tests require manufacturer and vessel documentation.

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

HD50 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Heading-sensor or input failure causes wandering, unexpected rudder commands or heading alarms
Rudder-feedback faults cause hunting, overshoot or disagreement between commanded and actual rudder angle
Control-unit or software faults cause loss of automatic mode or repeated alarms
Steering-gear interface faults prevent commanded rudder movement despite normal autopilot display
Incorrect tuning or sea-state settings cause excessive rudder activity, poor course keeping or increased steering-gear wear

Service: Verify heading input, rudder feedback, mode selection, steering response, alarms and changeover to manual steering. Check interfaces to gyro, steering gear and navigation systems. Review unexpected rudder activity or fault history. Exact tuning parameters and acceptance tests require manufacturer and vessel documentation.

Spare Parts: Carry fuses, control relays, heading or rudder-interface modules, operator controls and backed-up configuration information where supported.

Use Cases: Merchant, passenger, offshore and service vessels requiring automatic heading control.

Datasheet

Praxis Automation

TCS 3010 unverified

Type

Track Control System

IMO Compliant

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

TCS 3020 unverified

Type

Track Control System

IMO Compliant

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

TCS 3030 unverified

Type

Track Control System

IMO Compliant

Common Failures & Inspection Points

Heading-sensor or interface faults cause wandering, incorrect commanded heading, or sensor alarms
Rudder-feedback, steering-interface, or actuator faults cause hunting, poor course keeping, or inability to execute commands
Power-supply, control-computer, or display faults cause loss of automatic steering or unexpected mode changes
Incorrect gain, counter-rudder, weather, or vessel-response settings produce excessive rudder activity or sluggish course correction
Mode-selector, alarm, network, or navigation-input faults prevent track control or produce nuisance disengagement

Spare Parts: Typical spares include fuses, control switches, display or keypad items, interface modules, feedback sensors, relays, and critical power-supply components.

Use Cases: Used on merchant, passenger, offshore, fishing, naval, and workboat vessels for automatic heading keeping and, where approved, track-control functions.

Datasheet

Raytheon Anschütz

NautoSteer A unverified

Type

NFU/FU Steering

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

NautoSteer B unverified

Type

NFU/FU Steering

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

NautoSteer C unverified

Type

NFU/FU Steering

IMO Compliant

Common Failures & Inspection Points

Heading sensor input loss or error, typically indicated by autopilot alarm, heading wander or incorrect commanded rudder
Rudder-feedback sensor fault, typically indicated by unstable steering, feedback alarm or inability to engage automatic control
Controller or power-supply fault, typically indicated by loss of autopilot, rebooting or transfer to manual steering
Steering command/interface failure, typically indicated by no rudder response or intermittent control
Incorrect tuning/configuration or sensor alignment, typically indicated by hunting, overshoot or poor course keeping

Spare Parts: Carry critical power supplies, control modules, feedback sensors, interface relays and operator-control components according to the installed system.

Datasheet

Simrad

RPU-80 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Loss of sensor input or damaged cabling causes missing, frozen or implausible navigation data
Antenna, transducer or scanner faults reduce detection or measurement performance and generate equipment alarms
Power-supply or cooling faults cause resets, blank displays or complete loss of function
Configuration or interface faults cause disagreement between systems or missing data on connected equipment
Display, control or processing faults cause unstable operation, error messages or inability to select required functions

Service: Check power supplies, data interfaces, alarms, sensor health and agreement with independent navigation information where practical. Inspect external antennas, scanners or transducers as applicable and review fault logs and self-test results. Verify required backups, records and bridge procedures; exact calibration tolerances and test methods must follow manufacturer and statutory documentation.

Spare Parts: Typical spares include approved fuses, cooling fans, display or keypad parts where supported, interface modules, data cables and selected sensor or antenna components according to the vessel's critical-spares policy.

Use Cases: Used on commercial and offshore vessels for navigation, collision avoidance, route monitoring, heading control and voyage recording according to the specific equipment type.

Datasheet

RPU-160 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Loss of sensor input or damaged cabling causes missing, frozen or implausible navigation data
Antenna, transducer or scanner faults reduce detection or measurement performance and generate equipment alarms
Power-supply or cooling faults cause resets, blank displays or complete loss of function
Configuration or interface faults cause disagreement between systems or missing data on connected equipment
Display, control or processing faults cause unstable operation, error messages or inability to select required functions

Use Cases: Used on commercial and offshore vessels for navigation, collision avoidance, route monitoring, heading control and voyage recording according to the specific equipment type.

Datasheet

RPU-300 unverified

Type

Hydraulic Drive Unit

Common Failures & Inspection Points

Loss of sensor input or damaged cabling causes missing, frozen or implausible navigation data
Antenna, transducer or scanner faults reduce detection or measurement performance and generate equipment alarms
Power-supply or cooling faults cause resets, blank displays or complete loss of function
Configuration or interface faults cause disagreement between systems or missing data on connected equipment
Display, control or processing faults cause unstable operation, error messages or inability to select required functions

Use Cases: Used on commercial and offshore vessels for navigation, collision avoidance, route monitoring, heading control and voyage recording according to the specific equipment type.

Datasheet