History | |
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Nazi Germany | |
Name: | U-703 |
Ordered: | 9 October 1939 |
Builder: | HC Stülcken & Sohn, Hamburg |
Yard number: | 762 |
Laid down: | 9 August 1940 |
Launched: | 16 July 1941 |
Commissioned: | 16 October 1941 |
Fate: | Lost, presumed foundered, c. 25 September 1944 |
General characteristics | |
Class and type: | Type VIIC submarine |
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Height: | 9.60 m (31 ft 6 in) |
Draught: | 4.74 m (15 ft 7 in) |
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Complement: | 4 officers, 40–56 enlisted |
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Service record | |
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German submarine U-703 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine deployed during the Second World War against allied shipping in the Arctic Ocean. She was a successful boat, which had a far longer service life than most other U-boats, primarily due to the restricted zone of operations in which she fought. Her main mission during the war was to target the Arctic Convoys which carried supplies to the Soviet Union from Britain. At this she was quite successful in her three years of raiding until her presumed demise in 1944.
U-703 was built at Hamburg in Northern Germany on the North Sea. She was completed in the autumn of 1941, and given to the experienced Kapitänleutnant Heinz Bielfeld to command. He took her on her working-up period in which the boat was tested and the crew trained in the Baltic Sea and around the German held coastlines, before being dispatched to Narvik in Norway for her first war patrol in April 1942.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-381 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).