German submarine U-704
German World War II submarine From Wikipedia, the free encyclopedia
German World War II submarine From Wikipedia, the free encyclopedia
German submarine U-704 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
History | |
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Nazi Germany | |
Name | U-704 |
Ordered | 9 October 1939[1] |
Builder | HC Stülcken & Sohn, Hamburg |
Yard number | 763 |
Laid down | 26 August 1940[1] |
Launched | 28 August 1941[1] |
Commissioned | 18 November 1941[1] |
Fate | Scuttled on 30 April 1945[1] |
General characteristics | |
Class and type | Type VIIC submarine |
Displacement | |
Length |
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Beam |
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Height | 9.60 m (31 ft 6 in) |
Draught | 4.74 m (15 ft 7 in) |
Installed power |
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Propulsion |
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Speed |
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Range | |
Test depth |
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Complement | 4 officers, 40–56 enlisted |
Armament |
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Service record | |
Part of: |
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Identification codes: | M 43 929 |
Commanders: | |
Operations: |
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Victories: |
1 merchant ship sunk (6,942 GRT)[1] |
Commissioned on 18 November 1941 under the command of Kapitänleutnant Horst Wilhelm Kessler, U-704 carried out training operations as part of the 8th U-boat Flotilla until 30 June 1942.[1]
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-704 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[2] 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 AEG GU 460/8–27 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).[2]
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph).[2] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-704 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.[2]
U-704 set out on its first patrol, a transit to its operational base at Saint-Nazaire on 30 June 1942.[3] During this patrol, U-704 formed part of wolfpack "Wolf" which was to patrol between Iceland and Greenland, out of the range of allied air cover. On 26 July 1942, U-704 torpedoed the 6,942 GRT British freighter Empire Rainbow, part of convoy Convoy ON-113. Empire Rainbow had already been damaged by a torpedo from U-607, and U-704's torpedo sank the freighter.[3][4]
U-704 carried out a further four operational patrols under the command of Kessler from Saint Nazaire and La Pallice, sinking no further ships.[3] U-704 did fire four torpedoes at the troopship Queen Elizabeth on 9 November 1942, with Kessler claiming a hit, although Queen Elizabeth was undamaged.[5]
U-704 then served as a training submarine in the Baltic Sea for the rest of the war, and was scuttled at Vegesack on 30 April 1945.[1]
U-704 took part in seven wolfpacks, namely:
Date | Ship Name | Nationality | Tonnage (GRT) | Fate[6] |
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26 July 1942 | Empire Rainbow | United Kingdom | 6,942 | Sunk |
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