Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
4 11
- that it is possible to row the lifeboat.
Capsizing and Re-righting
A safety belt shall:
- be fitted at each indicated seating position; and
- be so designed as to hold a person of a mass of 100 kg securely in
place when the lifeboat is in a capsized position.
The stability of the lifeboat shall be such that it is inherently or automatically
self-righting when loaded with its full or partial complement of persons and
equipment and all entrances and openings are closed watertight, and the
persons are secured with safety belts.
The lifeboat shall, in the event of capsizing, automatically attain a position
that will provide an above water escape for its occupants.
The design of the engine exhaust pipes, air ducts, and other openings shall
be such that water is excluded from the engine when the lifeboat capsizes and
re-rights.
The lifeboat shall be automatically self-bailing.
Propulsion
The lifeboat engine and transmission be controlled from the helmsman
position.
The engine and engine installation shall be capable of running in any
position during capsize, and continue to run after the lifeboat returns to the
upright, or, shall automatically stop on capsizing and be easily re-started after the
lifeboat has returned to the upright and the water has been drained from the
lifeboat.
The design of the lifeboat engine and lubricating systems shall prevent the
loss of fuel and the loss of more than 250 ml of lubricating oil from the engine
during capsize.
In addition a self-righting partially enclosed lifeboat shall be so constructed
and fendered as to ensure that the lifeboat renders protection against harmful
accelerations resulting from an impact of the lifeboat, when loaded with its full
complement of persons and equipment, against the ship's side at an impact
velocity of not less than 3.5 meters per second.
4.1.5 Totally enclosed lifeboats