SM U-15 (Germany)

U 15 underway
History
Germany
NameU-15
Ordered23 February 1909
BuilderKaiserliche Werft Danzig
Cost2,101,000 Goldmark
Yard number10
Launched18 September 1911
Commissioned7 July 1912
FateRammed and sunk 9 August 1914
General characteristics
Class & typeType U 13 submarine
Displacement
  • 516 t (508 long tons) surfaced
  • 644 t (634 long tons) submerged
Length57.88 m (189 ft 11 in)
Beam6 m (19 ft 8 in)
Draught3.44 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
Range2,000 nautical miles (3,700 km; 2,300 mi) at 14 kn
Test depth50 m (160 ft)
Boats & landing
craft carried
1 dinghy
Complement4 officers, 25 men
Armament4 × 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]
  • 1–9 August 1914
Operations1 patrol
VictoriesNone

SM U-15[a] 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 lost to an enemy warship after it was rammed by British light cruiser HMS Birmingham in the North Sea.

Service history

Constructed by Kaiserliche Werft Danzig, U-15 was ordered on 23 February 1909 and commissioned three years later on 7 July 1912. At the start of World War I the boat was commanded by Kapitänleutnant Richard Pohle. The boat left port for its first patrol on 1 August 1914, part of a group of U-boats tasked with attacking the British naval base at Scapa Flow.

On 9 August, U-15 was forced to lie stopped on the surface off the coast of Fair Isle, in Shetland, after its engines failed. Whilst it was stranded on the surface in thick fog, the British cruiser HMS Birmingham was alerted to the boat after hearing hammering, presumed to be an attempt to repair U-15's engines. 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 his ship to ram the submarine at full speed, cutting it in half and sinking it at 58°22′N 0°58′E / 58.367°N 0.967°E / 58.367; 0.967. All 25 members of the submarine's crew were killed.

Notes

  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.

References

Citations

  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.

Bibliography

  • 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.
  • 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 15". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 August 2006.
  • "First World War.com". HMS Birmingham & U-15. Retrieved 25 August 2006.
  • Eberhard Möller and Werner Brack, The Encyclopedia of U-Boats From 1904 to the Present, Greenhill Books, London, 2004. ISBN 1-85367-623-3.