SM UC-91

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For other ships of the same name, see German submarine U-91.
Career (German Empire)
Name: UC-91
Ordered: 12 January 1916[1]
Builder: Blohm & Voss, Hamburg[2]
Yard number: 325[1]
Launched: 19 January 1918[1]
Commissioned: 31 July 1918[1]
Fate: sank while on way to surrender, 10 February 1919[1]
General characteristics
Class & type: German Type UC III submarine
Displacement: 491 t (541 short tons), surfaced[2]
571 t (629 short tons), submerged
Length: 185 ft 5 in (56.52 m)[2]
Beam: 18 ft 2 in (5.54 m)[2]
Draft: 12 ft 6 in (4 m)[3]
Propulsion: 2 × propeller shafts
2 × MAN 6-cylinder, 4-stroke diesel engines, 600 bhp (450 kW)[3]
2 × electric motors, 770 shp (570 kW)[3]
Speed: 11.5 knots (21.3 km/h), surfaced[2]
6.6 knots (12.2 km/h), submerged
Endurance: 9,850 nautical miles at 7 knots, surfaced[3]
(18,240 km at 13 km/h)
40 nautical miles at 4.5 knots, submerged[3]
(74 km at 8.3 km/h)
Test depth: 75 m (246 ft)[3]
Complement: 32[3]
Armament: 6 × 100 cm (39.4 in) mine tubes[3]
14 × UC 200 mines
3 × 50 cm (19.7 in) torpedo tubes (2 bow external; one stern)
7 × torpedoes
1 × 10.5 cm (4.1 in) KL/45 deck gun[3]
Notes: 15-second diving time[2]

SM UC-91 was a German Type UC III minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launched on 19 January 1918. She was commissioned into the German Imperial Navy on 31 July 1918 as SM UC-91.[Note 1] As with the rest of the completed UC III boats, UC-91 conducted no war patrols and sank no ships. She sank after a collision with the steamer Alexandra Woermann on 5 September 1918 in the Baltic Sea. The salvage vessel Vulkan raised the wreck the following day and was repaired. She was en route to surrender on 10 February 1919 when she foundered in the North Sea.[1]

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 1.5 Helgason, Guðmundur. "WWI U-boats: UC-91". U-Boat War in World War I. Uboat.net. Retrieved 23 February 2009. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Tarrant, p. 174.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Gardiner, p. 182.

Bibliography

  • Gardiner, Robert, ed. (1985). Conway's All the World's Fighting Ships, 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-907-8. OCLC 12119866. 
  • Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. ISBN 978-0-87021-764-7. OCLC 20338385. 


Completed and commissioned:
Completed but not commissioned:
Never completed
  • UC-80
  • UC-81
  • UC-82
  • UC-83
  • UC-84
  • UC-85
  • UC-86
  • UC-87
  • UC-88
  • UC-89
  • List of German U-boats


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