German submarine U-647
| History | |
|---|---|
 Nazi Germany
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| Name: | U-647 |
| Ordered: | 10 April 1941 |
| Builder: | Blohm & Voss, Hamburg |
| Yard number: | 147 |
| Laid down: | 29 December 1941 |
| Launched: | 16 September 1942 |
| Commissioned: | 5 November 1942 |
| Fate: | Missing since 3 August 1943 east of the Shetlands |
| General characteristics | |
| Class & type: | Type VIIC submarine |
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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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| Complement: | 4 officers, 40–56 enlisted |
| Armament: |
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| Service record | |
| Identification codes: | M 49 799 |
| Commanders: | Kptlt. Willi Hertin |
| Operations: | 1 patrol |
| Victories: | no ships sunk |
German submarine U-647 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 29 December 1941 at the Blohm & Voss yard at Hamburg, launched on 16 September 1942, and commissioned on 5 November 1942 under the command of Kapitänleutnant Willi Hertin.
Attached to 5th U-boat Flotilla based at Kiel, U-647 completed her training period on 31 March 1943 and was assigned to front-line service.
Design
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-647 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 Brown, Boveri & Cie GG UB 720/8 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-647 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
On the first and only war patrol U-647 was last heard of on 28 July 1943 and declared missing on 3 August 1943.[2]
References
- 1 2 3 4 Gröner 1991, pp. 43-46.
- ↑ Busch, Röll 1999, p. 99.
Bibliography
- Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945. Der U-Boot-Krieg (in German) IV (Hamburg, Berlin, Bonn: Mittler). ISBN 3-8132-0514-2.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945 2. Translated by Thomas, Keith; Magowan, Rachel (London: Conway Maritime Press). ISBN 0-85177-593-4.
External links
- Helgason, Guðmundur. "The Type VIIC boat U-647". German U-boats of WWII - uboat.net. Retrieved 21 July 2015.
Coordinates: 59°53′30″N 2°23′02″W / 59.89167°N 2.38389°W