Seehund
Submarine
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Seehund, also known as Type XXVII, was a midget submarine built by Nazi Germany during World War II. Wikipedia
Length: 39′
Builders: Friedrich Krupp Germaniawerft and Schichau-Werke
Lost: 35
Speed: 7 knots (13 km/h; 8.1 mph) (surfaced); 6 knots (11 km/h; 6.9 mph) (submerged)