German Type U 57 submarine

U-57 in Cherbourg circa 1920
History
German Empire
Name:	U-57
Ordered:	6 October 1914
Builder:	A.G. Weser, Bremen
Laid down:	25 August 1915
Launched:	29 April 1916
Commissioned:	6 July 1916
Fate:	24 November 1918 - Surrendered to France. Broken up at Cherbourg in 1921.
General characteristics
Class and type:	Type U 57 submarine
Displacement:	786 t (774 long tons) surfaced 956 t (941 long tons) submerged
Length:	67.00 m (219 ft 10 in) (o/a) 54.22 m (177 ft 11 in) (pressure hull)
Beam:	6.32 m (20 ft 9 in) (oa) 4.05 m (13 ft 3 in) (pressure hull)
Height:	8.05 m (26 ft 5 in)
Draught:	3.79 m (12 ft 5 in)
Installed power:	2 × 1,800 PS (1,324 kW; 1,775 shp) surfaced 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion:	2 shafts
Speed:	14.7 knots (27.2 km/h; 16.9 mph) surfaced 8.4 knots (15.6 km/h; 9.7 mph) submerged
Range:	7,730 nmi (14,320 km; 8,900 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 55 nmi (102 km; 63 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth:	50 m (164 ft 1 in)
Complement:	36
Armament:	4 × 50 cm (19.7 in) torpedo tubes (two bow, two stern) 7 torpedoes 1 × 10.5 cm (4.1 in) deck gun
Service record
Part of:	Imperial German Navy II Flotilla 7 July 1916 – 11 November 1918
Commanders:	Kptlt. Carl-Siegfried Ritter von Georg 6 July 1916 – 19 December 1917 Oblt.z.S. Günther Sperling 20 December 1917 - 6 March 1918 Oblt.z.S. Walter Stein 7 March – 11 November 1918
Operations:	7 patrols
Victories:	55 merchant ships sunk (91,462 GRT) 5 merchant ships damaged (10,157 GRT) 1 warship sunk (1,250 tons)

SM U-57 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-57 was engaged in naval warfare and took part in the First Battle of the Atlantic.