SM U-23 (Germany)

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For other ships with the same name, see German submarine U-23.
History
German Empire
Name: U-23
Ordered: 18 March 1911
Builder: Friedrich Krupp Germaniawerft, Kiel
Cost: 2,808,000 Goldmark
Yard number: 177
Laid down: 21 December 1911
Launched: 12 April 1912
Commissioned: 11 September 1913
Fate: 20 July 1915 - torpedoed and sunk by HMS C27
General characteristics Ocean-going diesel submarine
Class & type: German Type U 23 submarine
Displacement:
  • 669 t (658 long tons) surfaced
  • 864 t (850 long tons) submerged
Length: 64.70 m (212.3 ft)
Beam: 6.32 m (20 ft 9 in)
Draught: 3.45 m (11 ft 4 in)
Propulsion:
  • 2 shafts
  • 2 × Germania 6-cylinder two stroke diesel motors with 1,800 PS (1,800 hp)
  • 2 × SSW double Motordynamos with 1,200 PS (1,200 hp)
  • 450rpm surfaced
  • 330 rpm submerged
Speed:
  • 16.7 knots (30.9 km/h; 19.2 mph) surfaced
  • 10.3 knots (19.1 km/h; 11.9 mph) submerged
Range:
  • 9,910 nmi (18,350 km; 11,400 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 85 nmi (157 km; 98 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth: about 50 m (160 ft)
Boats & landing
craft carried:		 1 dingi
Complement: 4 officers, 31 men
Armament:
Service record
Part of:
  • Imperial German Navy
  • IV Flotilla
  • 1 August 1914 - unknown end
  • III Flotilla
  • unknown start – 20 July 1915
Commanders:
  • Kptlt. Erwin Weisbach[1]
  • 1 August – 25 November 1914
  • Kptlt. Hans Adam[2]
  • 26 November – 17 December 1914
  • Kptlt. Egewolf Freiherr von Berckheim[3]
  • 18 December 1914 – 12 January 1915
  • Kptlt. Hans Schultheß[4]
  • 13 January – 20 July 1915
Operations: 3 patrols
Victories: 7 ships sunk (8,822 GRT)

SM U-23 was one of the 329 U-boats serving in the Imperial German Navy in World War I. U-23 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

U-23 served on 3 war patrols, sinking a total of 7 ships for 8,822 tons. She was baited by the Q ship Princess Louise and torpedoed by HMS C27 at Lua error in package.lua at line 80: module 'strict' not found., between the Orkney and Shetland Islands off Fair Isle. Twenty four men died and 10 survived.

Summary of raiding career

Date Name Nationality Tonnage
(GRT)		 Fate[5]
13 May 1915 Invergyle  United Kingdom 1,794 Sunk
15 May 1915 Fingal  United Kingdom 1,562 Sunk
15 May 1915 Martha  Denmark 1,182 Sunk
19 May 1915 Chrysolite  United Kingdom 222 Sunk
19 May 1915 Crimond  United Kingdom 173 Sunk
19 May 1915 Lucerne  United Kingdom 154 Sunk
22 May 1915 Minerva  Norway 3,735 Sunk

References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Bibliography

  • Lua error in package.lua at line 80: module 'strict' not found.
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