SM U-15 (Germany)

	U 15 underway
History
Germany
Name	U-15
Ordered	23 February 1909
Builder	Kaiserliche Werft Danzig
Cost	2,101,000 Goldmark
Yard number	10
Launched	18 September 1911
Commissioned	7 July 1912
Fate	Rammed 9 August 1914 off Fair Isle, Scotland, at position 58°22′N 0°58′E / 58.367°N 0.967°E. 23 dead.
Class and type	German Type U 13 submarine
Displacement	516 t (508 long tons) surfaced; 644 t (634 long tons) submerged;
Length	57.88 m (189 ft 11 in)
Beam	6 m (19 ft 8 in)
Draught	3.44 m (11 ft 3 in)
Propulsion	2 shafts; 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;
Speed	14.8 knots (27.4 km/h; 17.0 mph) surfaced; 10.7 knots (19.8 km/h; 12.3 mph) submerged;
Test depth	50 m (160 ft)
Boats & landing ; craft carried	1 dinghy
Complement	4 officers, 25 men
Armament	4 × 45 cm (17.7 in) torpedo tubes (2 each bow and stern) with 6 torpedoes
Service record
Part of:	II Flotilla; 1–9 August 1914;
Commanders:	Kptlt. Richard Pohle; 1–9 August 1914;
Operations:	1 patrol
Victories:	None

SM U-15^{[Note 1]} was one of the three Type U 13 gasoline-powered U-boats produced by the German Empire for the Imperial German Navy. On 9 August 1914, U-15 became the first U-boat loss to an enemy warship after it was rammed by British light cruiser HMS Birmingham.

Constructed by Kaiserliche Werft Danzig, U-15 was ordered on 23 February 1909 and was commissioned three years later on 7 July 1912. The boat left port for its first patrol on 1 August 1914, but on 9 August, U-15 was forced to lie stopped on the surface off the coast of Fair Isle, in Shetland, Scotland, after its engines had failed.

While stranded on the surface, the British warship HMS Birmingham spotted the boat through a thick fog and could hear hammering from inside the boat as the crew tried to repair the damaged engines. The Birmingham's Captain Arthur Duff ordered his crew to fire on the U-boat, but missed. As U-15 attempted to dive to avoid the attack, Duff ordered for his ship to ram the submarine at full speed, cutting it in half and killing all 23 members of its crew.

^ Helgason, Guðmundur. "WWI U-boat commanders: Richard Pohle". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 March 2015.

Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).

[1] Helgason, Guðmundur. "WWI U-boat commanders: Richard Pohle". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 15 March 2015.

[1]

[Note 1]