SM U-11 (Germany)

History
German Empire
Name	U-11
Ordered	15 July 1908
Builder	Kaiserliche Werft Danzig
Cost	2,140,000 Goldmark
Yard number	6
Launched	2 April 1910
Commissioned	21 September 1910
Fate	9 December 1914 - Mined off the Belgian coast on 9 December 1914 at position 51°06′N 1°29′E / 51.100°N 1.483°E / 51.100; 1.483
General characteristics [1]
Class & type	Type U 9 submarine
Displacement	493 t (485 long tons) surfaced 611 t (601 long tons) submerged
Length	57.38 m (188 ft 3 in) (o/a)
Beam	6 m (19 ft 8 in)
Draught	3.13 m (10 ft 3 in)
Installed power	2 × Körting 6-cylinder and 2 × Körting 8-cylinder two stroke paraffin motors with 900 PS (660 kW; 890 shp) 2 × SSW electric motors and 2 × SSW modyns with 1,160 PS (850 kW; 1,140 shp) 550 rpm surfaced 600 rpm submerged
Propulsion	2 shafts, 2 × 1.45 m (4 ft 9 in) propellers
Speed	14.2 knots (26.3 km/h; 16.3 mph) surfaced 8.1 knots (15.0 km/h; 9.3 mph) submerged
Range	1,800 nmi (3,300 km; 2,100 mi) at 14 knots (26 km/h; 16 mph)
Test depth	50 m (160 ft)
Boats & landing craft carried	1 dingi
Complement	4 officers, 25 men
Armament	4 × 45 cm (17.7 in) torpedo tubes (two bow, two stern, six torpedoes)
Service record
Part of:	I Flotilla 1 August – 9 December 1914
Commanders:	Kptlt. Ferdinand von Suchodoletz[2] 1 August 1914 – 9 December 1914
Operations:	2 patrols
Victories:	None

SM U-11^{[Note 1]} was one of the 329 submarines serving in the Imperial German Navy in World War I.

U-11 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

• Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
• Rössler, Eberhard (1985). Die deutschen U-Boote und ihre Werften: U-Bootbau bis Ende des 1. Weltkriegs, Konstruktionen für das Ausland und die Jahre 1935–1945 [The German Submarines and Their Shipyards: Submarine Construction Until the End of the First World War] (in German). Vol. I. Koblenz: Bernard & Graefe. ISBN 3-7637-5213-7.
• Kemp, Paul (1997). U-boats destroyed, German submarine losses in the World Wars. London: Arms & Armour Press. p. 9. ISBN 1-85409-321-5.

• Helgason, Guðmundur. "WWI U-boats: U 11". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.