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Thanks Jens for the drawing and data. Jay I agree the Seehund looks more stable then the Biber. I personally prefer the looks of the Seehund over the Biber. I still think the Biber look-a-like is doable.  If the torpedoes are used as battery pods, then in a basic way it's design looks like a K-350 configuration, just longer. Which we all know is a pretty stable sub design. Of course there is more to it then that, but it's a start. Brent From: bottomgun@mindspring.com To: personal_submersibles@psubs.org Subject: RE: [PSUBS-MAILIST] Restoring a Biber (or Beaver) midget submarine Date: Mon, 11 Aug 2008 16:00:02 -0400 Jens, Thanks for the great image of Biber, I have Lakowski’s book someplace and will have to dig it out for review. Instead of building a Biber look-a-like, consideration might be given to the Seehunde as it was a more stable vessel (relatively). R/Jay 
 Respectfully, Jay K. Jeffries Andros Is., Bahamas 
 Talk sense to a fool and he calls you foolish. - Euripides (484 BC - 406 BC) 
 
 -----Original Message----- 
 Hi Brent 
 ** I also understand that an 80 liter gas tank were located within the ** very aft portion of the superstructure 
 I have checked a russian sketch made from a captured Biber at the end of the war, and here the location of the fuel tank(s) is properly documented (my annotation is in red and ocre)... 
 http://traktoria.org/biber.jpg 
 This image is scanned from the book "Deutsche U-Boote Geheim 1935-1945" by Richard Lakowski. 
 Sorry about my previous hasty conclusion(s)! 
 regards, Jens 
 
 
 
 
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