SM U-103

History
German Empire
Name	U-103
Ordered	15 September 1915
Builder	AG Weser, Bremen
Yard number	254
Laid down	8 August 1916
Launched	9 June 1917
Commissioned	15 July 1917
Fate	Rammed and sunk 12 May 1918 by HMT Olympic. 9 crewmen killed, 31 survived.
General characteristics [1]
Class and type	German Type U 57 submarine
Displacement	750 t (740 long tons) surfaced 952 t (937 long tons) submerged
Length	67.60 m (221 ft 9 in) (o/a) 54.02 m (177 ft 3 in) (pressure hull)
Beam	6.32 m (20 ft 9 in) (o/a) 4.05 m (13 ft 3 in) (pressure hull)
Height	8.25 m (27 ft 1 in)
Draught	3.65 m (12 ft 0 in)
Installed power	2 × 2,400 PS (1,765 kW; 2,367 shp) surfaced 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion	2 shafts, 2 × 1.65 m (5 ft 5 in) propellers
Speed	16.5 knots (30.6 km/h; 19.0 mph) surfaced 8.8 knots (16.3 km/h; 10.1 mph) submerged
Range	10,100 nmi (18,700 km; 11,600 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 56 nmi (104 km; 64 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	50 m (164 ft 1 in)
Complement	4 officers, 32 enlisted
Armament	4 × 50 cm (19.7 in) torpedo tubes (two bow, two stern) 10–12 torpedoes 2 × 8.8 cm (3.5 in) SK L/30 deck gun
Service record
Part of:	II Flotilla 26 August 1917 – 12 May 1918
Commanders:	Kptlt. Claus Rücker[2] 26 August 1917 – 12 May 1918
Operations:	5 patrols
Victories:	8 merchant ships sunk (15,467 GRT) 1 merchant ship damaged (6,042 GRT)

SM U-103^{[Note 1]} was an Imperial German Navy Type U 57 U-boat that was rammed and sunk by HMT Olympic during the First World War. U-103 was built by AG Weser in Bremen, launched on 9 June 1917 and commissioned 15 July 1917. She completed five tours of duty under Kptlt. Claus Rücker and sank eight ships totalling 15,467 gross register tons (GRT) before being lost in the English Channel on 12 May 1918.^[3]

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