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Underwater locator beacon
Abbreviation ULB  +
Definition a device fitted to aviation flight recorders such as the cockpit voice recorder and flight data recorder.  +
Defsource SKYBRARY (aviation safety knowledge reference tool) [http://www.skybrary.aero/]  +
Note ULBs are also sometimes required to be att
ULBs are also sometimes required to be attached directly to an aircraft fuselage. When triggered by water immersion, the ULB emits an ultrasonic pulse of 37.5 kHz at an interval of once per second, for a duration of at least 30 days. The devices are designed not only to survive accidents, but to function correctly after impact.
s, but to function correctly after impact.  +
Has query
"Has query" is a predefined property that represents meta information (in form of a subobject) about individual queries.
Underwater locator beacon + , Underwater locator beacon + , Underwater locator beacon + , Underwater locator beacon +
Categories NAVAIDS, Landing Aids, Points and/or Obstacles
Modification date
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5 July 2016 12:36:28  +
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