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German submarine U-340
Career
Name: U-340
Ordered: 17 December 1940
Builder: Nordseewerke, Emden
Yard number: 212
Laid down: 1 October 1941
Launched: 20 August 1942
Commissioned: 16 October 1942
Fate: Sunk, 2 November 1943[1]
General characteristics
Type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beam: 6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged Germaniawerft 6-cylinder 4-stroke M6V 40/46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × electric motors, totalling 750 shp (560 kW) and max rpm: 296.
Speed: 17.7 knots (20.4 mph; 32.8 km/h) surfaced
7.6 knots (8.7 mph; 14.1 km/h) submerged
Range: 15,170 km (8,190 nmi) at 10 kn (19 km/h) surfaced
150 km (81 nmi) at 4 kn (7.4 km/h) submerged
Test depth: 230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement: 44–52 officers and ratings
Armament: • 5 × 533 mm (21 in) torpedo tubes (four bow, one stern)
• 14 × G7e torpedoes or 26 TMA mines
• 1 × C35 88mm gun/L45 deck gun (220 rounds)
• Various AA guns
Service record[2][3]
Part of: 8th U-boat Flotilla
(16 October 1942–30 April 1943)
6th U-boat Flotilla
(1 May–2 November 1943)
Commanders: Oblt. Hans-Joachim Klaus
(16 October 1942–2 November 1943)
Operations: 1st patrol: 29 April–31 May 1943
2nd patrol: 6 July–2 September 1943
3rd patrol: 17 October–2 November 1943
Victories: None

German submarine U-340 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II.

The submarine was laid down on 1 October 1941 at the Nordseewerke yard at Emden, launched on 20 August 1942, and commissioned on 16 October 1942 under the command of Oberleutnant zur See Hans-Joachim Klaus. U-340 served with the 8th U-boat Flotilla, for training and then with the 6th U-boat Flotilla for operational service from 1 May to 2 November 1943.

Service history[]

1st patrol[]

U-340 sailed from Kiel on 29 April 1943, and out into the Atlantic to the waters south-east of Cape Farewell, Greenland, before returning to Bordeaux on 31 May, after 33 days at sea with no successes.[4]

2nd patrol[]

U-340's next patrol took her from Bordeaux on 6 July 1943, south to the coast of West Africa. On 25 August she rescued five Luftwaffe airmen off the coast of Spain, and was attacked by an aircraft shortly afterwards, suffering some damage; several men were wounded. She returned to Saint-Nazaire on 2 September.[5]

3rd patrol[]

U-340's third and final patrol began on 17 October 1943, sailing from Saint-Nazaire south to the Strait of Gibraltar.[6] There she was sunk on 2 November 1943, near Tangier at position 35°33′N 6°37′W / 35.55°N 6.617°W / 35.55; -6.617Coordinates: 35°33′N 6°37′W / 35.55°N 6.617°W / 35.55; -6.617, by depth charges from the sloop HMS Fleetwood, the destroyers HMS Active and Witherington and a Liberator bomber of No. 179 Squadron RAF. One of U-340's crew was killed and 48 survived the attack.[2]

References[]

Notes
Bibliography

External links[]

See also[]


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