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SM U-140

History
German Empire
Name: U-140
Ordered: 1 August 1916
Builder: Germaniawerft, Kiel
Yard number: 301
Launched: 4 November 1917
Commissioned: 28 March 1918
In service: 28 March 1918 – 11 November 1918
Fate:
  • Surrendered 23 February 1919
  • Sunk as target 22 July 1921
General characteristics
Class and type: German Type U 139 submarine
Displacement:
  • 1,930 t (1,900 long tons) surfaced
  • 2,483 t (2,444 long tons) submerged
Length:
Beam:
  • 9.12 m (29 ft 11 in) (o/a)
  • 5.75 m (18 ft 10 in) (pressure hull)
Height: 5.27 m (17 ft 3 in)
Draught: 11.20 m (36 ft 9 in)
Installed power:
  • 2 × 3,500 PS (2,574 kW; 3,452 shp)
  • 2 × 450 PS (331 kW; 444 shp) surfaced
  • 2 × 1,780 PS (1,309 kW; 1,756 shp) submerged
Propulsion: 2 shafts, 2 × 2.10 m (6 ft 11 in) propellers
Speed:
  • 15.8 knots (29.3 km/h; 18.2 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range:
  • 17,750 nmi (32,870 km; 20,430 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 53 nmi (98 km; 61 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged
Test depth: 75 m (246 ft 1 in)
Complement: 6 (1) officers, 56 (20) enlisted – (prize crew)
Armament:
  • 6 × 50 cm (19.7 in) torpedo tubes (four bow, two stern)
  • 19-24 torpedoes
  • 2 × 15 cm (5.9 in) deck guns
    • 2 × 8.8 cm (3.5 in) deck guns
Service record
Part of:
  • U-Kreuzer Flotilla
  • unknown start – 11 November 1918
Commanders:
Operations: 1 patrol
Victories:
  • 7 merchant ships sunk (30,004 GRT)
  • 1 Coast Guard ship sunk (590 tons)

SM U-140 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-140 was engaged in the naval warfare and took part in the First Battle of the Atlantic.

After the end of World War I, U-140 surrendered to the United States, which used her for testing. Finally, the United States Navy destroyer USS Dickerson (DD-157) sank her as a target in the Atlantic Ocean off Cape Charles, Virginia, on 22 July 1921.


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