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Can't remember how I got here, but the US reports on captured U-boats are quite interesting. (They thought the hulls were neat but the plumbing wasn't very good.)
to boats history retrotech submarines ww2 ...
on 28 May 2012
Mostly of interest for documents about Babbage. Also boatbuilding.
to babbage boats history retrocomputing ...
on 23 February 2009
by Adam Sampson.