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| PERISCOPE OPERATIONS |
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SUBMARINE
ALARMS |
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The "Shark" is diving. The Captain lowers one of the two periscopes. He won't
use it very often; the longest part of the trip will take place deep down. |
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These are the three alarms that only the Captain can initiate. From top to bottom:
Diving Alarm, Collision Alarm, and the General Quarters (Battle Stations) Alarm. |
The three Alarm Systems, each with unique handles to identify them in
darkness or haste, consist of:
The Diving Alarm; GREEN Top, Square. An "ah-oo-ga"
sound produced by motor driven alarms.
The Collision Alarm; RED Middle, Round. A rising
siren signal sound.
The General Alarm; YELLOW Bottom, Straight. A gong sound at 100 beats
per minute for ten seconds.
Both the Collision and General Alarms are produced by signal
generators in the amplifier stack and
sounded through 1MC speakers,
or horns, in each compartment.
Other class submarines may have different locations for
these alarms.
A Reactor Casualty Alarm; PURPLE,Triangle, may be installed in the
Control and Engine Rooms of
certain Nuclear Submarines;
but was not initially installed on the SHARK, nor Missile Alarms, |
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