The Merchant Shipping (Life-Saving Appliances for Passenger Ships of Classes III to VI (A)) Regulations 1992 No. 2359

SCHEDULE 6 LAUNCHING APPLIANCES AND EMBARKATION LADDERS

PART II LIFEBOAT AND RESUE BOAT LAUNCHING APPLIANCES

Winches

11.3  The speed at which the fully laden lifeboat or rescue boat with its equipment and launching crew is lowered into the water shall be not less than that obtained from the formula:

where

• S=speed of lowering in metres per second and

• H=height in metres from davit head, at the outboard position, to the waterline at the lightest seagoing condition.

In the case of a ship where “H” exceeds 30 metres the lowering speeds need not exceed 1 metre per second. The lowering speed of the light craft shall be within 70% of the speed required above.