German submarine U-357

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Career (Nazi Germany)
Name: U-357
Ordered: 26 October 1940
Builder: Flensburger Schiffbau-Gesellschaft, Flensburg
Yard number: 476
Laid down: 19 May 1940
Launched: 31 March 1942
Commissioned: 18 June 1941
Fate: Sunk by British warships, December 1942, northwest of Ireland[1]
General characteristics [2]
Class and type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.10 m (220 ft 2 in) o/a
50.50 m (165 ft 8 in) pressure hull
Beam: 6.20 m (20 ft 4 in) o/a
4.70 m (15 ft 5 in) pressure hull
Height: 9.60 m (31 ft 6 in)
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged diesel engines, totalling 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp). Max rpm: 470–490
2 × double-acting electric motors, totalling 750 PS (550 kW; 740 shp) and max rpm: 296.
Speed: 17.7 knots (32.8 km/h; 20.4 mph) surfaced
7.6 knots (14.1 km/h; 8.7 mph) submerged
Range: 8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement: 44–52 officers and ratings
Armament:
Service record[3]
Part of: 8th U-boat Flotilla
(18 June – 30 November 1942)
6th U-boat Flotilla
(1 – 26 December 1942)
Commanders: Kptlt. Adolf Kellner
(18 June – 26 December 1942)
Operations: One:
15–26 December 1942
Victories: None

German submarine U-357 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

She carried out no patrols. She did not sink or damage any ships.

She was sunk by British warships northwest of Ireland in December 1942.

Design[edit]

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-357 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[2] It 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 460/8-276 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. It had two shafts and two 1.23 m (4 ft) propellers. It 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, it could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, it could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-357 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at its bow and one at its stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. It had a complement of between forty-four and fifty-two.[2]

Service history[edit]

The submarine was laid down on 19 May 1940 at the Flensburger Schiffbau-Gesellschaft yard at Flensburg as yard number 476, launched on 31 March 1942 and commissioned on 18 June under the command of Kapitänleutnant Adolf Kellner.

She served with the 8th U-boat Flotilla from 18 June 1942 and the 6th flotilla from 1 December.

Fate[edit]

U-357 was sunk by depth charges dropped from the British destroyers HMS Hesperus and Vanessa on 26 December 1942 northwest of Ireland.[1][4]

36 men died; six survived.[3]

References[edit]

  1. ^ a b Kemp 1999, p. 98.
  2. ^ a b c d e Gröner 1985, pp. 72-74.
  3. ^ a b Helgason, Guðmundur. "The Type VIIC boat U-357". German U-boats of WWII - uboat.net. Retrieved 26 August 2012. 
  4. ^ Hofmann, Markus. "U 357". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 26 December 2014. 

Bibliography[edit]

  • 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 (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe 1815–1945 (in German) III (Koblenz: Bernard & Graefe). ISBN 3-7637-4802-4. 
  • Kemp, Paul (1999). U-Boats Destroyed - German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3. 
  • Kemp, Paul (1999). U-Boats Destroyed - German Submarine Losses in the World Wars. London: Arms & Armour. ISBN 1-85409-515-3. 

External links[edit]

Coordinates: 57°10′N 15°40′W / 57.167°N 15.667°W / 57.167; -15.667