Seehund midget submarine seen at Deutsches Marinemuseum Wilhelmshaven on 08.06.07
The Seehund (seal) (also known as Type XXVII ) was a series of German midget submarines created during World War II. Designed in 1944, and run by two men crews, the submarines were used by the Kriegsmarine in the closing months of the war.
After several attempts to perfect a midget submarine, the Seehund class was designed in early 1944. That September, the first three prototypes were produced in Kiel. Although 1000 midget Seehund class subs were planned to be built, only 138 were commissioned into the Kriegsmarine.

Built: 1944-1945
Max. depth: 30 m
Length: 11,865 m
Beam: 1,684 m
Propulsion: 60 PS 6 Zyl, Büssing NAG
and: 25 PS AEG E-Motor
Speed: 7,7 kn
Range: 500 km
Torpedo: 2x 53,3 cm G7e / Elektro
Displacement: 15 t
Complement: 2