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".......but found many constraints and would have found more once he became involved with weight and balance along with stability calculations......." True, so true! I kept putting off weight and balance calcs despite the software capability. More than any other single source, I found Jay's input the most valuable in remaining on course for a viable design. A military replica PSUB is possible, just look at Kraka for U-boat influences but, a Biber, or Seehund (In my opinion) should be considered as museum diplay candidates for the very reasons Jay points out. The sea will never leave me. I am building after all,...a seaplane but, as you can see, I still keep tabs on what you guys are doing. I also found a way to dedicate my psub efforts on my website http://sopwith-baby.com/Project_Genesis_II.html Take care! Joe
Jens, This is Jay not Ray. J When dealing with a small submersible there are a lot of constraints to design due to the size. While it is interesting to build a historical look-a-like, we should strive to follow modern conventions for the sake of safety. Any vessel that is used for war has a greater inherent risk of disaster and small submersibles were generally considered one way missions…these risks are accepted as part of the design objectives. In our case since we are not dealing with a war vessel and start from a different set of design objectives that should place safety paramount, we will make many different design decisions than those found in the Seehunde. In other words, we would be better to start from ground zero in design of a PSUB.
Joe Perkel looked at designing replica NR-1 and Alvin look-a-likes upon a K-350 hull. He retired from this effort for other reasons but found many constraints and would have found more once he became involved with weight and balance along with stability calculations.
Thanks for the reference, found a copy that I will purchase next payday to add to my large library on submarines. 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-----
Ray...
Good to hear you say this... :)
Are you familiar with the book "Die Seehunde - Klein-U-Boote, Letzte deutsche Initiative im Seekrieg 1939-1945" by Klaus Mattes; Verlag E.S. Mittler & Sohn GmbH, 1995, ISBN 3-8702-0484-7, 224 pages.
The book presents a thouroughly presentation of the Seehunde design, complete with excellent documentation in the form of technical data, images, sketches, drawings, etc., etc.
In addition it has a big section covering the various operational aspects of the type, and finally it also has an interesting coverage of what the french navy used it for after the war was over (up to the mid-50s).
regards, Jens
** 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
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