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Old 20th Mar 2014, 06:44
  #6438 (permalink)  
ChrisW67
 
Join Date: Apr 2009
Location: Brisbane, Australia
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CreamPuff, the short answer is no.

The FDR/CVR acoustic beacons operate at 37.5kHz with a usable detection range of up to 3 nautical miles (higher freq => lower range). This is a result of the need for small size, reasonable power requirements, and good localisation ability. The short acoustic pinger range makes detection from near the surface in an approximate 12000 feet of water a big ask.

The anti-submarine sonobuoys are designed for the sorts of lowish frequency noises put out by machinery on/in subs and ships. These travel much further in water. (In a past life I was the engineer overseeing software development for the AP-3C acoustic processor systems (since replaced))
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