SM U-1 (Germany)

SM U-1 at sea
History
German Empire
Name	U-1[2]
Ordered	3 December 1904[1]
Builder	Germaniawerft, Kiel
Cost	1,905,000 Goldmark
Yard number	119[1]
Laid down	October 1905[1]
Launched	4 August 1906[1]
Commissioned	14 December 1906[1]
Decommissioned	19 February 1919[2]
Status	On display in the Deutsches Museum in Munich, Germany[2]
General characteristics [2]
Class and type	German Type U 1 submarine
Displacement	238 t (234 long tons) surfaced 283 t (279 long tons) submerged[2]
Length	42.39 m (139 ft 1 in) (o/a) 32.50 m (106 ft 8 in) (pressure hull)
Beam	3.75 m (12 ft 4 in)
Draught	3.17 m (10 ft 5 in)
Installed power	2 × Körting 6-cylinder two stroke kerosene motor with a total of 400 PS (294 kW; 395 shp) 2 × modyn by Deutsche Elektrizitäts-Werke Aachen with a total of 400 PS (294 kW; 395 shp) 500 rpm surfaced 500 rpm submerged
Propulsion	2 shafts 2 × 1.30 m (4 ft 3 in) propellers
Speed	10.8 knots (20.0 km/h; 12.4 mph) surfaced 8.7 knots (16.1 km/h; 10.0 mph) submerged
Range	1,500 nmi (2,800 km; 1,700 mi) at 10 knots (19 km/h; 12 mph) surfaced 50 nmi (93 km; 58 mi) at 5 knots (9.3 km/h; 5.8 mph)
Test depth	30 m (98 ft)
Complement	2 officers, 10 men (later 3/19)
Armament	1 × 45 cm (17.7 in) torpedo tube with 3 C/03 torpedoes
Service record
Part of:	Training Flotilla 1 August 1914 - 11 November 1918
Operations:	none
Victories:	No ships sunk or damaged

SM U-1, also known in English as the German Type U 1 submarine, was the first U-boat class of the U-boat series of submarines produced for the German Empire's Imperial German Navy. Only one was built. The U-1 was constructed by Germaniawerft in Kiel and was commissioned on 14 December 1906.^[3] When World War I began in 1914, the U-1 was deemed obsolete and was used only for training until 19 February 1919, when it was struck by another vessel while on an exercise.