4.2 Fast rescue boat launching appliances
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.809 – Recommendation for Canopied Reversible Liferafts, Automatically Self-Righting Liferafts and Fast Rescue Boats, Including Testing, on Ro-Ro Passenger Ships – (Adopted on 30 June 1997) - Annex - Recommendation for Canopied Reversible Liferafts, Automatically Self-Righting Liferafts and Fast Rescue Boats, Including Testing, on Ro-Ro Passenger Ships - 4 Fast Rescue Boats - 4.2 Fast rescue boat launching appliances

4.2 Fast rescue boat launching appliances

  4.2.1 Every fast rescue boat launching appliance should comply with the requirements of paragraphs 6.1.1 and 6.1.2 except 6.1.2.10.

  4.2.2 The launching appliance should be fitted with a device to dampen the forces due to interaction with the waves when the fast rescue boat is launched or recovered. The device should include a flexible element to soften shock forces and a damping element to minimize oscillations.

  4.2.3 The winch should be fitted with an automatic high-speed tensioning device which prevents the wire from going slack in all sea state conditions in which the fast rescue boat is intended to operate.

  4.2.4 The winch brake should have a gradual action When the fast rescue boat is lowered at full speed and the brakes are applied sharply, the additional dynamical force induced in the wire due to retardation should not exceed 0.5 times the working load of the launching appliance.

  4.2.5 The lowering speed for a fully equipped fast rescue boat with its full complement of persons on board should not exceed 1 m/s. Notwithstanding the requirements of paragraph 6.1.1.9, launching appliances should be capable of hoisting the fully equipped rescue boat loaded with 6 persons at a speed of not less than 0.8 m/s. The appliance should also be capable of lifting the rescue boat with the maximum number of persons that can be accommodated in the rescue boat as calculated under paragraph 4.4.2.

  4.2.6 At least three turns of wire should remain on the winch after the fast rescue boat is lowered to the sea with the ship at its lightest seagoing condition, a trim of up to 10° and a list of up to 20°, either way.

Parent topic: 4 Fast Rescue Boats
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