SM UB-23

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For other ships of the same name, see German submarine U-23.

SM UB-45 a u-boat similar to UB-23
Career (German Empire)
Name: UB-23
Ordered: 30 April 1915[1]
Builder: Blohm & Voss, Hamburg[1]
Yard number: 253[1]
Launched: 9 October 1915[1]
Commissioned: 13 March 1916[1]
Fate: interned at Corunna, Spain, 29 July 1917[2]
General characteristics
Class & type: German Type UB II submarine
Displacement: 263 t (259 long tons) surfaced[2]
292 t (287 long tons) submerged[2]
Length: 36.13 m (118 ft 6 in)[2]
Beam: 436 m (1,430 ft 5 in)[2]
Draft: 3.7 m (12 ft 2 in)[2]
Propulsion: 2 × propeller shafts
2 × Körting diesel engines, 284 shp (212 kW)[2]
2 × Siemens-Schuckert electric motor, 280 shp (210 kW)[2]
Speed: 9.15 knots (16.95 km/h) surfaced[2]
5.81 knots (10.76 km/h) submerged[2]
Range: 6,450 nautical miles (11,950 km; 7,420 mi) at 5 knots (9.3 km/h; 5.8 mph) surfaced[2]
45 nmi (83 km; 52 mi) at 4 knots submerged[2]
Test depth: 50 m (160 ft)[2]
Complement: 2 officers, 21 men[2]
Armament: 2 × 50 cm (19.7 in) torpedo tubes[2]
4 × torpedoes (later 6)
1 × 5 cm SK L/40 gun[2]
Notes: 45-second diving time[2]

SM UB-23 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 30 April 1915 and launched on 9 October 1915. She was commissioned into the German Imperial Navy on 13 March 1916 as SM UB-23.[Note 1] The submarine sank 49 ships in 21 patrols for a total of 28,228 gross register tons (GRT).[3] UB-23 was badly damaged by a depth charge attack by HMS PC-60 off the Lizard. UB-23 put in at Corunna, Spain, and was interned. On 22 January 1919 she was surrendered to France in accordance with the requirements of the Armistice with Germany and broken up in Cherbourg in July 1921.[2]

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

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Rössler 1979, p. 64.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 Gröner 1985, p. 50.
  3. ↑ Bendert 2000, p. 195.

Bibliography

  • Gröner, Erich (1985). "U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher". Die deutschen Kriegsschiffe, 1815-1945 III (Koblenz: Bernhard&Graefe). ISBN 3-7637-4802-4. 
  • Bendert, Harald (2000). Die UB-Boote der Kaiserlichen Marine, 1914-1918. Einsätze, Erfolge, Schicksal. Hamburg: Verlag E.S. Mittler & Sohn GmbH. ISBN 3-8132-0713-7. 
  • Rössler, Eberhard (1979). "U-Bootbau bis Ende des 1. Weltkrieges, Konstruktionen für das Ausland und die Jahre 1935 - 1945". Die deutschen U-Boote und ihre Werften I (Munich: Bernhard&Graefe). ISBN 3-7637-5213-7. 


  • List of German U-boats


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