Seeteufel

Profile drawing of a Seeteufel
History
Nazi Germany
Name	Seeteufel
Namesake	Sea Devil
Fate	Demolished, May 1945
General characteristics
Type	Midget submarine
Displacement	35 t (34 long tons) (submerged)
Length	14.2 m (47 ft)
Beam	2 m (6 ft 7 in)
Installed power	80 bhp (60 kW) gasoline engine (surfaced) 25 bhp (19 kW) electric motor (submerged)
Propulsion	1 × propeller; 2 × caterpillar tracks
Speed	10 knots (19 km/h; 12 mph) (surfaced) 8 knots (15 km/h; 9.2 mph) (submerged)
Test depth	21 m (69 ft)
Complement	2
Armament	2 external G7e torpedoes or 4 mines

Seeteufel (Sea Devil, also known as the Elefant (Elephant)) was a two-man amphibious midget submarine, developed by Nazi Germany during World War II. Only one prototype was built in 1944, although its testing was relatively successful and negotiations began for another series of three to test the necessary changes before beginning series production in 1945. These plans were cancelled at the beginning of that year when the decision was made to concentrate production on designs already being built.