Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN FAST
RESCUE BOATS
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- be fitted with a grabline not less than 9.5 mm in diameter and
not less than four times the outside diameter of the body of the buoy in length.
Fig.2.3 Life buoys and lifebuoy’s lights
Self-igniting lights of the lifebuoy shall:
- be such that they cannot be extinguished by water;
- be of white color and capable of either burning continuously with a
luminous intensity of not less than 2 cd in all directions of the upper hemisphere or
flashing (discharge flashing) at a rate of not less than 50 flashes and not more than
70 flashes per min with at least the corresponding effective luminous intensity;
- be provided with a source of energy capable of meeting the
requirement of previous paragraph for a period of at least 2 hours;
- be capable of withstanding the drop test into the water from the
height at which it is stowed above the waterline in the lightest seagoing condition or
30 m, whichever is the greater, without impairing either its operating capability or
that of its attached components.
Self-activating smoke signals shall:
- emit smoke of a highly visible color at a uniform rate for a period of
at least 15 min when floating in calm water;
- not ignite explosively or emit any flame during the entire smoke
emission time of the signal;
- not be swamped in a seaway;
- continue to emit smoke when fully submerged in water for a period
of at least 10 s;
- be capable of withstanding the drop test into the water from the
height at which it is stowed above the waterline in the lightest seagoing condition or