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	U-10
History
German Empire
Name	U-10
Ordered	15 July 1908
Builder	Kaiserliche Werft Danzig
Cost	2,140,000 Goldmark
Yard number	5
Launched	24 January 1911
Commissioned	31 August 1911
Fate	30 June 1916 - Probably mined in Gulf of Finland. 29 dead (all hands lost).
General characteristics
Class and type	German 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 with 1,040 PS (760 kW; 1,030 shp); 550 rpm surfaced; 600 rpm submerged;
Propulsion	2 shafts; 2 × 1.30 m (4 ft 3 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	3,250 nmi (6,020 km; 3,740 mi) at 9 knots (17 km/h; 10 mph)
Test depth	50 m (160 ft)
Boats & landing ; craft carried	1 dingi
Complement	4 officers, 25 men
Armament	4 × torpedo tubes (two bow, two stern); 6 45 cm (17.7 in) torpedoes; 1 × 8.8 cm (3.5 in) SK L/40 gun; 1 × 3.7 cm (1.5 in) Hotchkiss gun;
Service record
Part of:	I Flotilla; 1 August 1914 – 7 July 1915; Baltic Flotilla; 7 July 1914 – 30 June 1916;
Commanders:	Kptlt. Fritz Stuhr; 1 August 1914 – 30 June 1916;
Operations:	6 patrols
Victories:	7 merchant ships sunk; (1,651 GRT)

SM U-10^{[Note 1]} was one of the 329 submarines serving in the Imperial German Navy in World War I.

Service history

U-10 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

She sank on 30 June 1916, after probably striking a mine in the Gulf of Finland. All 29 crew were killed.

Date	Ship Name	Nationality	Tonnage^{[Note 2]}	Fate^[3]
31 March 1915	Nor	Norway	544	Sunk
1 April 1915	Gloxinia	United Kingdom	145	Sunk
1 April 1915	Jason	United Kingdom	176	Sunk
1 April 1915	Nellie	United Kingdom	109	Sunk
5 April 1915	Acantha	United Kingdom	322	Sunk
28 April 1915	Lilydale	United Kingdom	129	Sunk
6 November 1915	Birgit	Finland	226	Sunk

^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
^ Tonnages are in gross register tons

^ Gröner 1991, pp. 4–6.
^ Helgason, Guðmundur. "WWI U-boat commanders: Fritz Stuhr". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 13 March 2015.
^ Helgason, Guðmundur. "Ships hit by U 10". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 19 February 2014.

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.