German submarine U-751

German submarine U-751 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. Built as yard number 134 of the Kriegsmarinewerft shipyard in Wilhelmshaven, she was commissioned on 31 January 1941. She served with 7th U-boat Flotilla until 1 June as a training boat, and as an operational boat until 17 July 1942, under the command of Kapitänleutnant Gerhard Bigalk. U-751 served in seven patrols with the 7th U-boat Flotilla, sinking the escort carrier HMS Audacity. The U-boat was attacked with depth charges from aircraft on 17 July 1942 and sank with the loss of all 48 crew members.

In port at St. Nazaire on 15 June 1942
History
Nazi Germany
NameU-751
Ordered9 October 1939
BuilderKriegsmarinewerft Wilhelmshaven
Yard number134
Laid down2 January 1940
Launched16 November 1940
Commissioned31 January 1941
FateSunk on 17 July 1942
General characteristics
Class and typeType 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
Height9.60 m (31 ft 6 in)
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
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)
Complement4 officers, 40–56 enlisted
Armament
Service record
Part of:
Identification codes: M 30 807
Commanders:
Operations:
  • 7 patrols:
  • 1st patrol:
  • 3 June – 5 July 1941
  • 2nd patrol:
  • 2 August – 8 September 1941
  • 3rd patrol:
  • 11 October – 8 November 1941
  • 4th patrol:
  • 16 – 26 December 1941
  • 5th patrol:
  • 14 January – 23 February 1942
  • 6th patrol:
  • 15 April – 15 June 1942
  • 7th patrol:
  • 14 – 17 July 1942
Victories:
  • 5 merchant ships sunk
    (21,412 GRT)
  • 1 warship sunk
    (11,000 tons)
  • 1 merchant ship damaged
    (8,096 GRT)
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