Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
Outer Hull insulation
Posted by: Mark McShane ()
Date: May 28, 2014 12:24PM

Reading a message from naval attache Stockholm to admiralty, it mentions thatu-boats were using hair covered with watertight paper was been fitted to the inner side of the outer hull for controlling temperature. Dated May 1943.
Does anyone have further details on this?

KR

Mark

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