German submarine U-661

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Career (Nazi Germany)
Name: U-661
Ordered: 9 October 1939
Builder: Howaldtswerke, Hamburg
Yard number: 810
Laid down: 12 March 1941
Launched: 11 December 1941
Commissioned: 12 February 1942
Fate: Sunk 15 October 1942 in the North Atlantic in position 53°42′N 35°56′W / 53.700°N 35.933°W / 53.700; -35.933Coordinates: 53°42′N 35°56′W / 53.700°N 35.933°W / 53.700; -35.933, by depth charges from HMS Viscount.
General characteristics [1]
Class and 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 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 & ratings
Armament:
Service record[2]
Part of: 5th U-boat Flotilla
(12 February 1942 - 30 September 1942) - Training
3rd U-boat Flotilla
(1 October 1942 - 15 October 1942)
Commanders: Oblt.z.S. Erich von Lilienfeld
(12 February 1942 - 15 October 1942)
Operations: 1st patrol:
5 September 1942 - 15 October 1942
Victories: 1 merchant ship sunk (3,672 GRT)

German submarine U-661 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 12 March 1941 by Howaldtswerke, Hamburg as yard number 810, launched on 11 December 1941 and commissioned on 12 February 1942 under Oberleutnant zur See Erich von Lilienfeld.

Service History[edit]

The boat's career began with training at 5th U-boat Flotilla on 12 February 1942, followed by active service on 1 October 1942 as part of the 3rd Flotilla for the remainder of her very short career.

In one patrol she sank one merchant ship, for a total of 3,672 gross register tons (GRT).

Wolfpacks[edit]

U-661 took part in three wolfpacks, namely

  • Pfeil (12–22 September 1942)
  • Blitz (22–26 September 1942)
  • Wotan (12–15 October 1942)

Fate[edit]

U-661 was sunk on 15 October 1942 in the North Atlantic in position 53°42′N 35°56′W / 53.700°N 35.933°W / 53.700; -35.933, by depth charges from Royal Navy destroyer HMS Viscount. All hands were lost.

Summary of raiding career[edit]

Date Name Nationality Tonnage
(GRT)
Fate[3]
14 October 1942 Nikolina Matkovic  Kingdom of Yugoslavia 3,672 Sunk

See also[edit]

References[edit]

  1. ^ Gröner 1985, pp. 72-74.
  2. ^ Helgason, Guðmundur. "The Type VIIC boat U-661". German U-boats of WWII - uboat.net. Retrieved 4 September 2014. 
  3. ^ Helgason, Guðmundur. "Ships hit by U-661". German U-boats of WWII - uboat.net. Retrieved 4 September 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. 
  • Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9. 

External links[edit]