PPRuNe Forums - View Single Post - Malaysian Airlines MH370 contact lost

21st Mar 2014, 09:41

#6846 (permalink)

EngineeringPilot

Join Date: Nov 2013

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Quote:

They are activated by a g-switch which is one of the reasons why they are so unreliable.

Yep the ELT g-swithc activates on an acceleration of 3.5 ft/s, and they have a battery life of only 30 days upon activation.