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Re: Sonar
Posted by: sniper ()
Date: February 01, 2002 07:05AM


J.T has covered the American TDC very well so i won't address that issue.
The sonar ranges come from Freidmans "American Submarines, 1945 to today".
What you must remember is that German and American sub sonars were fundamentally different in operation (passive sonars anyway). The American sonars were single hydrophone receivers (the deck JT unit - the 'bar' you can sometimes can see in pictures of the bow area - was still a single reciver,albeit a large one). German sonars were 'arrays' of multiple single receivers all wired together.By mounting single receivers in multiple arrays and wireing them together (the individual hydrophones were wired together with fixed delay lines so that the array could be electronically 'steered' to determine bearing) the Germans could get these long ranges (ALL modern sonars are arrays..this method is proven technology). Also as the array was larger than an individual receiver it could listen at lower frequencies (larger physical area allowed it to pick up weaker signals) and determine direction more accurately.I hope this answers your questions SuperKraut.

Rgrds

Sniper.

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Subject Written By Posted
Submarine quality in WW2 bernardz 01/21/2002 12:31PM
Re: Submarine quality in WW2 J.T. McDaniel 01/21/2002 09:04PM
Re: Submarine quality in WW2 kurt 01/22/2002 09:17PM
Re: Submarine quality in WW2 sniper 01/24/2002 07:21AM
Sonar SuperKraut 01/31/2002 07:54PM
Re: Sonar J.T. McDaniel 02/01/2002 01:22AM
Just a small note Leif... 02/01/2002 10:57AM
Re: Sonar sniper 02/01/2002 07:05AM
Single transducer SuperKraut 02/01/2002 03:31PM
Re: Single transducer J.T. McDaniel 02/01/2002 11:27PM
Re: Single transducer sniper 02/06/2002 10:25AM
U 570 SuperKraut 02/06/2002 11:42AM
Re: U 570 sniper 02/06/2002 11:58AM


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