German submarine U-140 (1940)
| History | |
|---|---|
 Nazi Germany
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| Name: | U-140 |
| Ordered: | 25 September 1939 |
| Builder: | Deutsche Werke, Kiel |
| Yard number: | 269 |
| Laid down: | 16 November 1939 |
| Launched: | 28 June 1940 |
| Commissioned: | 7 August 1940 |
| Fate: | Scuttled, 2 May 1945 |
| General characteristics | |
| Class and type: | IID |
| Type: | Coastal submarine |
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| Height: | 8.40 m (27 ft 7 in) |
| Draught: | 3.93 m (12 ft 11 in) |
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| Test depth: | 80 m (260 ft) |
| Complement: | 3 officers, 22 men |
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| Operations: | One patrol |
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German submarine U-140 was a Type IID U-boat of Nazi Germany's Kriegsmarine during World War II. She carried out only one combat patrol, but still managed to see action as a training boat in the summer of 1941. Built at the Kiel shipyards during 1939 and 1940, as a Type IID U-boat, she was too small for major operational work in the Atlantic Ocean, which was now required by the Kriegsmarine as the Battle of the Atlantic expanded.
German Type IID submarines were enlarged versions of the original Type IIs. U-140 had a displacement of 314 tonnes (309 long tons) when at the surface and 364 tonnes (358 long tons) while submerged. Officially, the standard tonnage was 250 long tons (250 t), however. The U-boat had a total length of 43.97 m (144 ft 3 in), a pressure hull length of 29.80 m (97 ft 9 in), a beam of 4.92 m (16 ft 2 in), a height of 8.40 m (27 ft 7 in), and a draught of 3.93 m (12 ft 11 in). The submarine was powered by two MWM RS 127 S four-stroke, six-cylinder diesel engines of 700 metric horsepower (510 kW; 690 shp) for cruising, two Siemens-Schuckert PG VV 322/36 double-acting electric motors producing a total of 410 metric horsepower (300 kW; 400 shp) for use while submerged. She had two shafts and two 0.85 m (3 ft) propellers. The boat was capable of operating at depths of up to 80–150 metres (260–490 ft).
The submarine had a maximum surface speed of 12.7 knots (23.5 km/h; 14.6 mph) and a maximum submerged speed of 7.4 knots (13.7 km/h; 8.5 mph). When submerged, the boat could operate for 35–42 nautical miles (65–78 km; 40–48 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 3,800 nautical miles (7,000 km; 4,400 mi) at 8 knots (15 km/h; 9.2 mph). U-140 was fitted with three 53.3 cm (21 in) torpedo tubes at the bow, five torpedoes or up to twelve Type A torpedo mines, and a 2 cm (0.79 in) anti-aircraft gun. The boat had a complement of 25.
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