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There were also three German midget submarines build for speed attacks with a teardrop shape in WW II: https://en.wikipedia.org/wiki/Delphin https://en.wikiped
by lorenzfx 12y ago
There were also three German midget submarines build for speed attacks with a teardrop shape in WW II:
https://en.wikipedia.org/wiki/Delphin https://en.wikipedia.org/wiki/Delphin