SM UC-91
| History | |
|---|---|
 German Empire | |
| Name | UC-91 |
| Ordered | 12 January 1916[1] |
| Builder | |
| 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 and type | German Type UC III submarine |
| Displacement |
|
| Length |
|
| Beam | 5.54 m (18 ft 2 in) (o/a) |
| Draft | 3.77 m (12 ft 4 in) |
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 75 m (246 ft) |
| Complement | 32 |
| Armament |
|
| Notes | 15-second diving time |
| Service record | |
| Commanders: |
|
| Operations: | None |
| Victories: | None |
SM UC-91 was a German
German Imperial Navy (German: Kaiserliche Marine) during World War I
.
Design
A
propeller shafts. She had a dive time of 15 seconds and was capable of operating at a depth of 75 metres (246 ft).[4]
The submarine was designed for a maximum surface speed of 11.5 knots (21.3 km/h; 13.2 mph) and a submerged speed of 6.6 knots (12.2 km/h; 7.6 mph). When submerged, she could operate for 40 nautical miles (74 km; 46 mi) at 4.5 knots (8.3 km/h; 5.2 mph); when surfaced, she could travel 9,850 nautical miles (18,240 km; 11,340 mi) at 7 knots (13 km/h; 8.1 mph). UC-91 was fitted with six 100 centimetres (39 in) mine tubes, fourteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 10.5 cm (4.1 in) SK L/45 or 8.8 cm (3.5 in) Uk L/30 deck gun . Her complement was twenty-six crew members.[4]
Construction and career
The U-boat was ordered on 12 January 1916 and 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.[5]
References
Notes
- ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
Citations
- ^ a b c d e Helgason, Guðmundur. "WWI U-boats: UC 91". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009.
- ^ Tarrant, p. 174.
- ^ Helgason, Guðmundur. "WWI U-boat commanders: Bernhard Gerke". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 20 January 2015.
- ^ a b Gröner 1991, pp. 34–35.
- ^ Gröner, p. 62
Bibliography
- Bendert, Harald (2001). Die UC-Boote der Kaiserlichen Marine 1914-1918. Minenkrieg mit U-Booten (in German). Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0758-7.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). German Warships 1815–1945, U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Gardiner, Robert; Gray, Randal, eds. (1985). Conway's All the World's Fighting Ships 1906–1921. OCLC 12119866.
- Tarrant, V. E. (1989). The U-Boat Offensive: 1914–1945. Annapolis, Maryland: Naval Institute Press. OCLC 20338385.
Shipwrecks and maritime incidents in September 1918 | |
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| Shipwrecks |
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| Other incidents |
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