German submarine U-642

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Career (Nazi Germany)
Name: U-642
Ordered: 20 January 1941
Builder: Blohm & Voss, Hamburg
Yard number: 618
Laid down: 19 November 1941
Launched: 6 August 1942
Commissioned: 1 October 1942
Fate: Sunk 5 May 1944 in the Mediterranean at the Military port of Toulon in position 43°07′N 05°55′E / 43.117°N 5.917°E / 43.117; 5.917, in a US air raid.
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 F46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × BBC GG UB 720/8 electric motors, totalling 750 shp (560 kW) 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 kn (19 km/h; 12 mph) surfaced
80 nmi (150 km; 92 mi) at 4 kn (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 & ratings
Armament:
Service record[1]
Part of: 5th U-boat Flotilla
(1 October 1942 - 28 February 1943) - Training
6th U-boat Flotilla
(1 March 1943 - 30 November 1943)
29th U-boat Flotilla
(1 December 1943 - 5 July 1944)
Commanders: Kptlt. Herbert Brünning
(1 October 1942 - 5 July 1944)
Operations: 1st patrol:
20 February 1943 - 8 April 1943
2nd patrol:
4 May 1943 - 17 July 1943
3rd patrol:
11 September 1943 - 13 September 1943
4th patrol:
22 December 1943 - 23 January 1944
Victories: 1 merchant ship sunk (2,125 GRT)

German submarine U-642 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 19 November 1941 by Blohm & Voss, Hamburg as yard number 618, launched on 6 August 1942 and commissioned on 1 October 1942 under Kapitänleutnant Herbert Brünning.

Service History[edit]

The boat's career began with training at 5th U-boat Flotilla on 1 October 1942, followed by active service on 1 March 1943 as part of the 6th Flotilla. She transferred for operations in the Mediterranean on 1 December 1943 to serve with 29th Flotilla for the remainder of her service.

In 4 patrols she sank 1 merchant ship, for a total of 2,125 gross register tons (GRT).

Wolf packs[edit]

U-642 took part in 9 wolf packs, namely

  • Neuland (4 Mar 1943 – 6 Mar 1943)
  • Ostmark (6 Mar 1943 – 11 Mar 1943)
  • Stürmer (11 Mar 1943 – 20 Mar 1943)
  • Seewolf (21 Mar 1943 – 30 Mar 1943)
  • Oder (17 May 1943 – 19 May 1943)
  • Mosel (19 May 1943 – 24 May 1943)
  • Trutz (1 Jun 1943 – 16 Jun 1943)
  • Trutz 1 (16 Jun 1943 – 29 Jun 1943)
  • Geier 3 (30 Jun 1943 – 15 Jul 1943)

Fate[edit]

U-642 was sunk on 5 May 1944 in the Mediterranean at Military port of Toulon in position 43°07′N 05°55′E / 43.117°N 5.917°E / 43.117; 5.917, by a US air raid.

Summary of Raiding Career[edit]

Date Name Nationality Tonnage
(GRT)
Fate[2]
8 March 1943 Leadgate  United Kingdom 2,125 Sunk

See also[edit]

References[edit]

Notes
  1. ^ "The Type VIIC boat U-642 - German U-boats of WWII - uboat.net". www.uboat.net. Retrieved 2 September 2014. 
  2. ^ "U-642 successes". UBoat.net. Retrieved 2 September 2014. 
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 (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe 1815-1945 (in German) III (Koblenz: Bernard & Graefe). ISBN 3-7637-4802-4. 
  • Edwards, Bernard (1996). Dönitz and the Wolf Packs - The U-boats at War. p. 169. ISBN 0-304-35203-9. 
  • Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9. 

External links[edit]