SM UC-1

History
German Empire
Name	UC-1
Ordered	November 1914
Builder	AG Vulcan, Hamburg
Yard number	45
Launched	26 April 1915
Commissioned	5 July 1915
Fate	Missing since 18 July 1917; possibly sunk by mines off Nieuwpoort, Belgium
General characteristics
Class & type	Type UC I submarine
Displacement	168 t (165 long tons), surfaced; 183 t (180 long tons), submerged;
Length	33.99 m (111 ft 6 in) o/a; 29.62 m (97 ft 2 in) pressure hull;
Beam	3.15 m (10 ft 4 in)
Draft	3.04 m (10 ft)
Propulsion	1 × propeller shaft; 1 × 6-cylinder, 4-stroke diesel engine, 90 PS (66 kW; 89 bhp); 1 × electric motor, 175 PS (129 kW; 173 shp);
Speed	6.20 knots (11.48 km/h; 7.13 mph), surfaced; 5.22 knots (9.67 km/h; 6.01 mph), submerged;
Range	780 nmi (1,440 km; 900 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced; 50 nmi (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	50 m (160 ft)
Complement	14
Armament	6 × 100 cm (39 in) mine tubes; 12 × UC 120 mines; 1 × 8 mm (0.31 in) machine gun;
Service record
Part of	Flandern Flotilla; 25 June 1915 – 19 July 1917;
Commanders	Oblt.z.S. Egon von Werner; 7 May 1915 – 13 April 1916; Oblt.z.S. Kurt Ramien; 14 April – 31 August 1916; Oblt.z.S. Heinrich Küstner; 1 September – 3 November 1916; Oblt.z.S. Hugo Thielmann; 4 November – 16 December 1916; Lt.z.S. Oskar Steckelberg; 17 December 1916 – 7 January 1917; Oblt.z.S. Hugo Thielmann; 8 January 1917 – 17 March 1917; Oblt.z.S. Walter Warzecha; 18 March – 1 June 1917; Oblt.z.S. Christian Mildenstein; 2 June – 19 July 1917;
Operations	80 patrols
Victories	24 merchant ships sunk ; (53,249 GRT); 5 warships sunk ; (3,067 tons); 12 auxiliary warships sunk ; (2,620 GRT); 9 merchant ships damaged ; (52,899 GRT);

SM UC-1 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat had been ordered by November 1914 and was launched on 26 April 1915. She was commissioned into the German Imperial Navy on 5 July 1915 as SM UC-1. Mines laid by UC-1 in her 80 patrols were credited with sinking 41 ships. UC-1 disappeared after 18 July 1917.