Thread: Why didn't the hydrophones work on the surface?
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Old 03-13-12, 08:45 AM   #2
Jan Kyster
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Quote:
Originally Posted by Off the Rails View Post
...Why didn't they put it on the keel, as surface ships did?
They did... it's called GHG "Gruppenhorchgeräte".

A small whitepaper by Arthur O. Bauer on the subject: http://www.mediafire.com/?gyc60je7r88b84b


For more papers, look here... http://www.cdvandt.org/index.htm
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