Originally Posted by
notapilot15
It is also a myth that navies have superior underwater technology. Oil companies and research organizations have latest technology.
I would say they have different technologies. But the commercial technology may be more useful in this case. US Navy submarines have significant sonar ability - but they probably don't go down far enough to get a good reading on a pinger 10,000 feet below the surface.
Here's the frame of the sonar detector that you'd find in the nose of a US Navy sub:
