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Library› Safety & LSA› Lifesaving Appliances (LSA)› Freefall Lifeboat› Viking Life-Saving Equipment A/S 12 DKF+, 16 DKF+, 20 DKF+, 20 DKF+GN, 25 DKF+, 35 DKF+,12 DKF+S30, 16 DKF+S30, 20 DKF+GN S30, 20 DKF+S30, 25 DKF+S30, 35 DKF+S30, 12 DKF+ E, 16 DKF+E, 20 DKF+E, 25 DKF+E, 35 DKF+E
Viking Life-Saving Equipment A/S

12 DKF+, 16 DKF+, 20 DKF+, 20 DKF+GN, 25 DKF+, 35 DKF+,12 DKF+S30, 16 DKF+S30, 20 DKF+GN S30, 20 DKF+S30, 25 DKF+S30, 35 DKF+S30, 12 DKF+ E, 16 DKF+E, 20 DKF+E, 25 DKF+E, 35 DKF+E

Freefall Lifeboat · Lifesaving Appliances (LSA)

Class-certified type (DNV register) · technical data sheet not yet verified

12 DKF+, 16 DKF+, 20 DKF+, 20 DKF+GN, 25 DKF+, 35 DKF+,12 DKF+S30, 16 DKF+S30, 20 DKF+GN S30, 20 DKF+S30, 25 DKF+S30, 35 DKF+S30, 12 DKF+ E, 16 DKF+E, 20 DKF+E, 25 DKF+E, 35 DKF+E by Viking Life-Saving Equipment A/S. DNV MED certificate MEDB00001JC.

Specifications

Technical data.

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IMO ApprovedYes
Inspection

Inspector Detail

Common issues

  • On-load release gear (hook) corrosion, seizure or misadjustment from infrequent operation
  • Engine starting failure due to weak battery or stale fuel after long periods of standby
  • Launching skid/chute rollers dry or corroded, increasing free-fall friction
  • Hull gelcoat cracking and UV degradation on exposed composite structure
  • Door and window seal deterioration allowing water ingress
  • Painter line and release wire corrosion or chafe
  • Bilge pump failing to clear water shipped during drills

Inspection checklist

  • Visual hull inspection for cracks, delamination or impact damage
  • On-load release gear function test per SOLAS/MSC.1/Circ.1206 without personnel aboard unless specifically authorized
  • Engine start and run test - cooling water discharge, exhaust colour, idle stability
  • Battery condition, terminals and charging system check
  • Painter line and release wire condition
  • Seating, harnesses and restraint condition
  • Bilge pump operation test
  • Fuel tank level and fuel line integrity
  • Skid/ramp/chute rollers and grease condition for free-fall launch
  • Emergency lighting, compass, VHF and pyrotechnics/EPIRB expiry check

Service intervals

On-load release gear overhaul and load test5 years, per SOLAS/MSC.1/Circ.1206
Annual lifeboat and davit/launch appliance survey12 months
Engine servicing (oil, filters, coolant)per engine maker's schedule, typically 12 months or a set running-hour figure
Battery replacementtypically 2-4 years depending on battery type - confirm against onboard maintenance plan
Combined free-fall launch and load test5 years, aligned with release gear overhaul - confirm against flag/class requirement

Typical wear limits

On-load release hook proof loadmust sustain 1.1x SWL static proof load without deformation or cracking at the 5-yearly test - confirm against the release gear's own test certificate
Falls/release wire conditionrenew on broken wires, kinking or corrosion beyond the wire rope maker's discard criteria - confirm against the specific wire's data sheet

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

Critical spares

  • On-load release gear hook seals, pins and springs
  • Starting battery
  • Bilge pump
  • Door and window rubber seals
  • Painter line and release wire

Safety

  • Free-fall launch is unforgiving - poor skid/chute maintenance can cause launch failure or an uncontrolled drop
  • On-load release gear must never be function-tested with personnel aboard unless the procedure specifically authorizes it
  • Engine exhaust inside an enclosed boat during testing requires ventilation or an exhaust extraction hose
  • Fall-from-height risk during boarding drills and maintenance work at the davit

Class survey

Reviewed at annual LSA survey - class checks release gear test records against the 5-year interval, davit/winch brake condition, engine start reliability, and that MED/wheelmark certification remains valid for the fitted configuration.

Estimated lifetime: Not meaningfully measured in running hours - freefall lifeboats are life-limited by condition and the 5-yearly release gear/load test regime rather than engine hours; hull and structure commonly remain in service 20-25 years subject to passing survey, confirm against Viking's own guidance.

Classification

DNV type approval

Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.

CertificateMEDB00001JC
Open the certificate at DNV
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