SM U-121

For other ships with the same name, see German submarine U-121.

History

German Empire
Name:	U-121
Builder:	AG Vulcan, Hamburg
Cost:	6,177,000 Goldmark
Yard number:	95
Launched:	20 September 1918
In service:	9 March 1919
Fate:	Surrendered on 9 March 1919 to France Sunk as target off Cherbourg, 1 July 1921
General characteristics ^[1]
Class and type:	German Type UE II submarine
Type:	Coastal minelaying submarine
Displacement:	1,164 t (1,146 long tons) surfaced 1,512 t (1,488 long tons) submerged
Length:	81.52 m (267 ft 5 in) (o/a)
Beam:	7.42 m (24 ft 4 in)
Height:	10.16 m (33 ft 4 in)
Draught:	4.22 m (13 ft 10 in)
Installed power:	2 × diesel engines, 2,400 PS (1,765 kW; 2,367 shp) 2 × electric motors, 1,200 PS (883 kW; 1,184 shp)
Propulsion:	2 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 depth:	75 m (246 ft)
Complement:	4 officers, 36 enlisted
Armament:	4 × 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) deck gun 494 rounds

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. Completed after the Armistice she was never commissioned in the Imperial German Navy but handed over to France on 9 March 1919. She was sunk as target off Cherbourg on 1 July 1921.

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

↑ Gröner 1991, p. 15.

Bibliography

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

German Type UE II submarines

U-117 U-118 U-119 U-120 U-122 U-123 U-124 U-125 U-126

Preceded by: Type UE I Followed by: None List of U-boats of Germany

Shipwrecks and maritime incidents in 1921

Shipwrecks	3 Jan: UB-88 20 Jan: HMS K5 31 Jan: Carroll A. Deering January (unknown date): Baden, Hewitt 9 Feb: HMS Hydra 21 Feb: USS Woolsey 3 Mar: Hong Moh 4 Mar: Carroll A. Deering March (unknown date): USS Conestoga 13 May: Miztec 14 May: Wollongbar 23 May: USS Granite State 26 May: Esperanto 7 Jun: U-151, UC-97 21 Jun: USS G-1 22 Jun: U-177 24 Jun: HMS K15 26 Jun: Fitzroy 30 Jun: U-152, U-153 1 Jul: U-121 11 Jul: General Pershing 18 Jul: Frankfurt 21 Jul: Ostfriesland 22 Jul: U-140 16 Aug: Baden 3 Sep: Abessinia 26 Sep: USS R-6 27 Sep: USS Alabama 7 Oct: USS Herreshoff No. 321 8 Oct: Rowan 3 Nov: Carrier Dove 30 Nov: Guvernøren 1 Dec: USS DeLong 7 Dec: USS S-48 Unknown date: Equity, Rüsumat No 4, U-86, U-161, UB-122

Other incidents	29 Jan: España 18 Apr: Iron Monarch May (unknown date): USS R-14 8 Jul: Western Comet 19 Aug: King Orry

1920 1922

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