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Pinger Life In CVR.

Mon Apr 25, 2005 1:03 am

Whats the life of the "Pinger" [Under water locator beacon] after activation on any Common Commercial Airliner in Hours.
Is 30 days an accurate Life.
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Joined: Mon Jun 21, 2004 11:09 pm

RE: Pinger Life In CVR.

Mon Apr 25, 2005 1:38 am

Each recorder, FDR and CVR is equipped with an ULB Underwater Locator Beacon, to assist in locating in the event of an overwater accident. The ULB, normally attached to the front of the recorders, is activated when the recorder is immersed in water, salt or fresh water and is powered by a lithium battery. In some models, the battery can be replaced in the field.

. Transmits an acoustical signal on 37.5 kHz ± 1 kHz
. Operating depth is surface to 20,000 feet
. Shelf life limit is six years
. Operating life 30 days

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