Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
Re: Depth Charges and ASDIC/Sonar
Posted by: Rainer Bruns ()
Date: August 14, 2002 01:41AM

Hi Robert,
little correction here. None of the type XXI were coated with the synthetic rubber material "Alberich". However, several type VIIc did so. One of them U1105 was called the "black panther" because of it's tower emblem. It now rests in 85' of water in the lower Potomac River just off the Chesapeake Bay. Sunk by USN tests after the war.
The coating did not loose effectiveness because of dives, but the glued rubber sheets had the tendency to peel off exposing uncovered steel to the search pulses. Rgds, RB

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Subject Written By Posted
Depth Charges and ASDIC/Sonar Durand 08/10/2002 04:49PM
Re: Depth Charges and ASDIC/Sonar Don Baker 08/12/2002 03:13PM
Re: Depth Charges and ASDIC/Sonar Durand 08/13/2002 09:50AM
Re: Depth Charges and ASDIC/Sonar FUBAR 08/13/2002 12:29PM
Re: Depth Charges and ASDIC/Sonar Ken du 08/13/2002 01:22PM
Thanks to all. Very Helpful. (n/t) Durand 08/13/2002 10:56PM
Re: Depth Charges and ASDIC/Sonar ROBERT M. 08/14/2002 12:40AM
Re: Depth Charges and ASDIC/Sonar Rainer Bruns 08/14/2002 01:41AM
Re: Depth Charges and ASDIC/Sonar ROBERT M. 08/14/2002 02:40AM
Re: Depth Charges and ASDIC/Sonar Rainer Bruns 08/14/2002 01:35PM
Re: Depth Charges and ASDIC/Sonar ROBERT M. 08/15/2002 04:16AM
Re: Depth Charges and ASDIC/Sonar Rainer Bruns 08/15/2002 01:09PM
Re: Depth Charges and ASDIC/Sonar ROBERT M. 08/15/2002 11:53PM
Re: Depth Charges and ASDIC/Sonar Sander Kingsepp 08/19/2002 09:35AM
Re: Depth Charges and ASDIC/Sonar Don Baker 08/14/2002 01:50PM
Re: Depth Charges and ASDIC/Sonar JIM CAMPBELL 08/24/2002 02:59AM


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