Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
14 27
other than failure of the bulb; it should also withstand immersion under 300
mm of water for a period of six hours without such leakage, discharge of the
batteries or other defect, as would affect the efficient use of the torch.
Fig. 14-15 Signal mirror
A signal mirror is one of the cheapest and most effective emergency
signalling devices a person can carry and with training can even be used in
overcast conditions and at night.
14.4.2 Pyrotechics
Red parachute flares
Are used to attract the attention of searching ships and aircraft some distance
off.
Only red parachute flares indicate distress.
The signals can be sighted at a long range and identify the general
area of search. If the searching boat or aircraft alter course, a second
parachute rocket or hand flare should be fired.
Their range is :
- 25 nautical miles by night
- 8 nautical miles or less by day
The signals burn for about 40 seconds failing from a height of about 300
meters.
The procedures for firing a parachute rocket are printed in English and in
picture format on every rocket.