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SM U-121

SM U-121[Note 1] was a Type UE II long-range minelaying U-boat of the Imperial German Navy intended for service in the Mediterranean. The Austro-Hungarian Navy allocated her the number SM U-84. She was built at Hamburg, Germany, by Aktiengesellschaft Vulcan and launched on 20 September 1918. Incomplete at the Armistice she was never commissioned in the Imperial German Navy but surrendered to the Allies at Harwich on 9 March 1919. Handed over to France, she was sunk as a gunnery target off Cherbourg on 1 July 1921.[2]

History
German Empire
NameU-121
BuilderAG Vulcan, Hamburg
Cost6,177,000 Goldmark
Yard number95
Launched20 September 1918
In service9 March 1919
Fate
  • Surrendered on 9 March 1919 to France
  • Sunk as target off Cherbourg, 1 July 1921
General characteristics [1]
Class and typeGerman Type UE II submarine
TypeCoastal minelaying submarine
Displacement
  • 1,164 t (1,146 long tons) surfaced
  • 1,512 t (1,488 long tons) submerged
Length81.52 m (267 ft 5 in) (o/a)
Beam7.42 m (24 ft 4 in)
Height10.16 m (33 ft 4 in)
Draught4.22 m (13 ft 10 in)
Installed power
Propulsion2 shafts, 2 × 1.61 m (5 ft 3 in) propellers
Speed
  • 14.7 knots (27.2 km/h; 16.9 mph) surfaced
  • 7 knots (13 km/h; 8.1 mph) submerged
Range
  • 13,900 nmi (25,700 km; 16,000 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 35 nmi (65 km; 40 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged
Test depth75 m (246 ft)
Complement4 officers, 36 enlisted
Armament

References edit

Notes edit

  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.

Citations edit

  1. ^ Gröner 1991, p. 15.
  2. ^ Dodson, Aidan; Cant, Serena (2020). Spoils of War: the fate of enemy fleets after the two World Wars. Barnsley: Seaforth. p. 125. ISBN 978-1-5267-4198-1.

Bibliography edit

  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

other, ships, with, same, name, german, submarine, note, type, long, range, minelaying, boat, imperial, german, navy, intended, service, mediterranean, austro, hungarian, navy, allocated, number, built, hamburg, germany, aktiengesellschaft, vulcan, launched, s. For other ships with the same name see German submarine U 121 SM U 121 Note 1 was a Type UE II long range minelaying U boat of the Imperial German Navy intended for service in the Mediterranean The Austro Hungarian Navy allocated her the number SM U 84 She was built at Hamburg Germany by Aktiengesellschaft Vulcan and launched on 20 September 1918 Incomplete at the Armistice she was never commissioned in the Imperial German Navy but surrendered to the Allies at Harwich on 9 March 1919 Handed over to France she was sunk as a gunnery target off Cherbourg on 1 July 1921 2 HistoryGerman EmpireNameU 121BuilderAG Vulcan HamburgCost6 177 000 GoldmarkYard number95Launched20 September 1918In service9 March 1919FateSurrendered on 9 March 1919 to France Sunk as target off Cherbourg 1 July 1921General characteristics 1 Class and typeGerman Type UE II submarineTypeCoastal minelaying submarineDisplacement1 164 t 1 146 long tons surfaced 1 512 t 1 488 long tons submergedLength81 52 m 267 ft 5 in o a Beam7 42 m 24 ft 4 in Height10 16 m 33 ft 4 in Draught4 22 m 13 ft 10 in Installed power2 diesel engines 2 400 PS 1 765 kW 2 367 shp 2 electric motors 1 200 PS 883 kW 1 184 shp Propulsion2 shafts 2 1 61 m 5 ft 3 in propellersSpeed14 7 knots 27 2 km h 16 9 mph surfaced 7 knots 13 km h 8 1 mph submergedRange13 900 nmi 25 700 km 16 000 mi at 8 knots 15 km h 9 2 mph surfaced 35 nmi 65 km 40 mi at 4 5 knots 8 3 km h 5 2 mph submergedTest depth75 m 246 ft Complement4 officers 36 enlistedArmament4 50 cm 19 7 in bow torpedo tubes 14 torpedoes 2 100 cm 39 in stern mine chutes 42 mines 1 15 cm 5 9 in SK L 45 deck gun 494 rounds Contents 1 References 1 1 Notes 1 2 Citations 2 BibliographyReferences editNotes edit SM stands for Seiner Majestat English His Majesty s and combined with the U for Unterseeboot would be translated as His Majesty s Submarine Citations edit Groner 1991 p 15 Dodson Aidan Cant Serena 2020 Spoils of War the fate of enemy fleets after the two World Wars Barnsley Seaforth p 125 ISBN 978 1 5267 4198 1 Bibliography editGroner Erich Jung Dieter Maass Martin 1991 U boats and Mine Warfare Vessels German Warships 1815 1945 Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 Retrieved from https en wikipedia org w index php title SM U 121 amp oldid 1172017210, wikipedia, wiki, book, books, library,

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