Quote:
|
Originally Posted by Castout
Quote:
|
Originally Posted by seafarer
You can listen at surface in a Sargo or Salmon boat - the hydrophones are "chin" mounted (under the forefoot).
|
Are they the two mini balls pointing downwards ?
Actually it is a smart thinking to place the hydrophones under the keel so that the submarine would still be able to listen even when they are surfaced much like a destroyer hydrophones. |
Yes, those are retractable hydrophones for supersonic sounds, but you can pick up subsonic sounds sometimes (see
http://hnsa.org/doc/fleetsub/sonar/chap1.htm )
also -
http://hnsa.org/doc/sonar/chap14.htm