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Airplane 'black box' recorders need improved

THE 'black box' of the missing Malaysian airliner has not yet been recovered. We are told that it emits a locating signal once the aircraft crashes, but is only emitted for about 30 days.

Would it not be possible to incorporate an additional device that would be designed to break free and float in the event of the plane landing in the sea?

It would emit a 'ping' detectable from satellites and could incorporate a solar charger in order to maintain battery power indefinitely. Surely this is within the capabilities of aviation engineers?


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