German submarine U-670
| History | |
|---|---|
 Nazi Germany |
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| Name: | U-670 |
| Ordered: | 20 January 1941 |
| Builder: | Howaldtswerke, Hamburg |
| Yard number: | 819 |
| Laid down: | 25 November 1941 |
| Launched: | 15 December 1942 |
| Commissioned: | 26 January 1943 |
| Fate: | sank after collision with target ship on 20 August 1943 |
| General characteristics | |
| Class & type: | Type VIIC submarine |
| Displacement: |
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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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| Complement: | 4 officers, 40–56 enlisted |
| Armament: |
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| Service record | |
| Identification codes: | M 49 847 |
| Commanders: | Oblt.z.S. Guido Hyronimus |
| Victories: | no ships sunk |
German submarine U-670 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 25 November 1941 at the Howaldtswerke yard at Hamburg, launched on 15 December 1942, and commissioned on 26 January 1943 under the command of Oberleutnant zur See Guido Hyronimus.
Design
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-670 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[1] 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 Siemens-Schuckert GU 343/38–8 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).[1]
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).[1] 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-670 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 an anti-aircraft gun. The boat had a complement of between forty-four and sixty.[1]
Service history
Attached to 5th U-boat Flotilla based at Kiel, U-670 collided during training in the Baltic Sea with the target ship Bolkoburg and sank. Of her crew of 43, 22 survived while 21 perished in the accident.[2]
References
- ↑ 1.0 1.1 1.2 1.3 Gröner 1991, pp. 43-46.
- ↑ Busch, Röll 1999, p. 140.
Bibliography
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External links
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