SMUC-91
History | |
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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 and type | Type UC III submarine |
Displacement | |
Length |
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Beam | 5.54 m (18 ft 2 in) (o/a) |
Draft | 3.77 m (12 ft 4 in) |
Propulsion |
|
Speed |
|
Range |
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Test depth | 75 m (246 ft) |
Complement | 32 |
Armament |
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Notes | 15-second diving time |
Service record | |
Commanders: |
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Operations: | None |
Victories: | None |
SMUC-91was a GermanType UC IIIminelayingsubmarineorU-boatin theGerman Imperial Navy(German:Kaiserliche Marine) duringWorld War I.
Design
[edit]AType UC III submarine,UC-91had a displacement of 491 tonnes (483 long tons) when at the surface and 571 tonnes (562 long tons) while submerged. She had alength overallof 56.51 m (185 ft 5 in), abeamof 5.54 m (18 ft 2 in), and adraughtof 3.77 m (12 ft 4 in). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 300 metric horsepower (220 kW; 300 shp) (a total of 600 metric horsepower (440 kW; 590 shp)), two electric motors producing 770 metric horsepower (570 kW; 760 shp), and twopropeller 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-91was 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), seventorpedoes,and one10.5 cm (4.1 in) SK L/45or8.8 cm (3.5 in) Uk L/30deck gun.Hercomplementwas twenty-six crew members.[4]
Construction and career
[edit]The U-boat was ordered on 12 January 1916 and waslaunchedon 19 January 1918. She wascommissionedinto the German Imperial Navy on 31 July 1918 as SMUC-91.[Note 1]As with the rest of the completed UC III boats,UC-91conducted no war patrols and sank no ships. She sank after a collision with the steamerAlexandra Woermannon 5 September 1918 in theBaltic Sea.The salvage vesselVulkanraised the wreck the following day and was repaired. She was en route to surrender on 10 February 1919 when she foundered in theNorth Sea.[5]
References
[edit]Notes
[edit]- ^"SM" stands for "Seiner Majestät" (English:His Majesty's) and combined with theUforUnterseebootwould be translated asHis Majesty's Submarine.
Citations
[edit]- ^abcdeHelgason, Guðmundur."WWI U-boats: UC 91".German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.Retrieved23 February2009.
- ^Tarrant, p. 174.
- ^Helgason, Guðmundur."WWI U-boat commanders: Bernhard Gerke".German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.Retrieved20 January2015.
- ^abGröner 1991,pp. 34–35.
- ^Gröner, p. 62
Bibliography
[edit]- Bendert, Harald (2001).Die UC-Boote der Kaiserlichen Marine 1914-1918. Minenkrieg mit U-Booten(in German). Hamburg, Berlin, Bonn: Mittler.ISBN3-8132-0758-7.
- 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.ISBN0-85177-593-4.
- Gardiner, Robert; Gray, Randal, eds. (1985).Conway's All the World's Fighting Ships 1906–1921.Annapolis, Maryland:Naval Institute Press.ISBN978-0-87021-907-8.OCLC12119866.
- Tarrant, V. E. (1989).The U-Boat Offensive: 1914–1945.Annapolis, Maryland: Naval Institute Press.ISBN978-0-87021-764-7.OCLC20338385.
- Ships built in Hamburg
- German Type UC III submarines
- U-boats commissioned in 1918
- Maritime incidents in 1918
- U-boats sunk in 1918
- U-boats sunk in 1919
- Maritime incidents in 1919
- World War I submarines of Germany
- World War I shipwrecks in the Baltic Sea
- World War I shipwrecks in the North Sea
- World War I minelayers of Germany
- 1918 ships