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This is the place to discuss general issues related to the U-boat war or the war at sea in WWII. 
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Hydrometer
Posted by: Don Presley ()
Date: February 17, 2001 09:37AM

<HTML>There is currently a hydrometer on E-bay. The seller states it is for measuring the temperature of the batteries on a U-boat. I was under the impression they were used to measure the temperature of the sea water, which somehow determined how the torpedo would travel once fired. I have one from a collection of items taken by a shipyard worker in Portsmouth, NH. All the other ones I\'ve seen are in a black cardboard tube, but mine is in a wooden tube. Can anyone shed light on this for me?</HTML>

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Subject Written By Posted
Hydrometer Don Presley 02/17/2001 09:37AM
RE: Hydrometer Tom Iwanski 02/17/2001 11:45AM
RE: Hydrometer JOE BRANDT 02/17/2001 06:55PM
RE: Hydrometer kelley green 02/18/2001 01:12AM
Re: RE: Hydrometer Ken Smith 02/13/2009 11:43PM
Re: Hydrometer Ã…kerberg 02/15/2009 11:10AM


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