Quote:
Originally Posted by Dan02
except these needles have transmitters...
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Are black boxes waterproof to 4300 metres? Not Likely, plus if there was any air space inside it at all, it would be crushed. Any electronics would be toast. Plus, how far does it transmit through all that water? Probobly not far. If they can pick up its signal through all that water, how accurately would they be able to pinpoint it's exact location under all that water? Probobly not very well.
It's a HUGE deal to even get equipment down to that kind of depth, in one specific location, never mind searching the thousands of square kilometres that it could be in.