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Library› Safety & LSA› Lifesaving Appliances (LSA)› Davit System (Lifeboat/Raft)› d-i davit international-hische D-FH.80 12.22.10

D-FH.80 12.22.10

Davit System (Lifeboat/Raft) · Lifesaving Appliances (LSA)

Technical data from manufacturer or class sources · not yet verified by a person
Persons capacity per SOLAS certificationCapacity
Crew Evacuation / SafetyMedium

The D-FH.80 is a fast‑rescue davit system for launching lifeboats, rescue boats or MOB craft, featuring up to 48 m/min hoist speed and interchangeable drive options (electric, hydraulic, manual or stored‑power).

Specifications

Technical data.

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IMO ApprovedYes
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Weekly engine test run (min. 5 min). Release hook servicing annually by an approved service provider (SOLAS MSC.402(96)). GRP hull inspection at docking. Five-year thorough examination.

Inspection

Inspector Detail

Common issues

  • Wire fall corrosion or damage from the higher duty cycle typical of fast-rescue boat drills
  • Limit switch wear from frequent cycling during regular drills
  • Brake band/lining wear, checked less often than the drill frequency would suggest
  • Stored-power system (accumulator/spring) faults where the optional stored-power drive is fitted
  • On-load release gear (hook) requiring careful reset after every drill - a common source of near-misses if rushed
  • Structural corrosion or fatigue at pivot points from the higher cycling frequency of rescue-boat davits

Inspection checklist

  • Carry out the annual LSA Code thorough examination, including brake, wire, structure and release gear
  • Brake test at the class-required overload percentage
  • Confirm hoist speed and lowering control meet the fast-rescue boat's required launch time in the applicable sea state
  • Function-test limit switches and stored-power backup drive where fitted
  • Test the on-load release gear and confirm correct reset after every use, not only at survey
  • Inspect wire falls for wear given the higher cycle count typical of rescue-boat operations
  • Inspect davit structure and foundation for fatigue cracking given frequent cycling

Service intervals

Annual service/thorough examinationannually per LSA Code/SOLAS
5-yearly winch overhaul and load testper SOLAS III requirement
On-load release gear overhaultypically every 5 years per SOLAS/maker requirement
Wire fall inspection/renewalmore frequent condition checks are prudent given higher drill cycling; renew on condition, commonly within 5 years or sooner
Stored-power system check (if fitted)per maker's schedule, typically at each annual service

Typical wear limits

Wire fall diameter reductiondiscard per class/rope-maker's criteria, commonly around 10% reduction from nominal
Brake lining thicknessrenew before reaching the maker's minimum mark, checked more often given the higher duty cycle

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Wire falls (correct diameter/length pair)
  • Brake band/lining set
  • Limit switches
  • On-load release gear overhaul kit
  • Stored-power accumulator/spring components (if fitted)

Safety

  • Fast-rescue boat davits are used far more frequently than lifeboat davits - fatigue and wear accumulate faster than the calendar interval alone suggests
  • Uncontrolled fall during launch/recovery remains the primary hazard - never stand under a suspended boat without mechanical blocking
  • On-load release gear must be reset correctly after every drill before the boat is next launched
  • Stored energy in the optional stored-power drive must be isolated before maintenance
  • Launch/recovery in a seaway carries additional swing/crush risk - crew must be trained on the specific davit's procedure

Class survey

Same LSA Code/SOLAS III annual and 5-yearly regime as lifeboat davits applies, but surveyors typically expect to see drill/launch logs cross-checked against wear findings given the higher usage rate of fast-rescue boat davits. On-load release gear maintenance records are a common focus area.

Estimated lifetime: Not expressed in running hours; structure is typically designed for 20-25 years of service, but fast-rescue boat davits see more operating cycles per year than lifeboat davits, so wire falls, brakes and release gear should be assessed on cycle count as well as calendar time

Spares

Replacement Parts

Spare parts notes

Spare parts via d-i davit international-hische GmbH or authorised distribution partners. Lead time: 2-6 weeks.

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