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Irish
Coast Guard Historic |
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Setting the Scene |
COMMUNICATIONS. Communication between the vessel and
the rescuers was of course essential, before electricity and radio
this was very basic indeed and could be reduced to three categories,
Sound, Sight and Light. A Megaphone was used to amplify sound, Signal
flags for daylight communication and a Lantern for night use. The
signal flags were Red (2) 3ft x 2ft (90mm x 60mm) on 5ft (1.50 mts)
staff, and a pair of semaphore flags 24inch x 24inch (60mm x 60mm)
for sending messages. The lanterns varied over the years from oil
lamps, Carbide lamps, pressure lamps with a mantle (Tilley type),
battery lamps to electric lamps. Interestingly even today ships lights
and fixed lights used at sea are still called Lanterns. Flares and
Rockets were and are still used for day and night signalling and come
in a variety of colours and PYROTECHNICS. Pyrotechnics have played a vital
role in safety and life saving at sea since early days when gunfire
was used to attract attention, and firework rockets were used. It
was obvious from the beginning that some sort of system must be available
to attract attention by day and by night to a vessel in distress.
In |