German submarine U-764

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History
Nazi Germany
Name: U-764
Ordered: 15 August 1940
Builder: Kriegsmarinewerft Wilhelmshaven
Yard number: 147
Laid down: 1 February 1941
Launched: 13 March 1943
Commissioned: 6 May 1943
Fate: Surrendered on 14 May 1945 at Loch Eriboll, Scotland. She was later sunk, as part of Operation Deadlight in position Lua error in package.lua at line 80: module 'strict' not found., on 2 February 1946.
General characteristics
Class & type: Type VIIC submarine
Displacement:
  • 769 tonnes (757 long tons) surfaced
  • 871 t (857 long tons) submerged
Length:
Beam:
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Draught: 4.74 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)
Complement: 4officers, 40–56 enlisted
Armament:
Service record[1]
Part of:
Commanders:
  • Oblt.z.S. Hanskurt von Bremen
  • 6 May 1943 – 14 May 1945
Operations:
  • 1st patrol: 26 October – 11 December 1943
  • 2nd patrol: 17 January – 15 March 1944
  • 3rd patrol: 26–28 April 1944
  • 4th patrol: 6–23 June 1944
  • 5th patrol: 6 August – 19 September 1944
  • 6th patrol: 26 December 1944 – 4 February 1945
  • 7th patrol: 19–23 March 1945
  • 8th patrol: 26 April – 14 May 1945
Victories:
  • 1 merchant ship sunk (638 GRT)
  • 2 warships sunk (1,696 tons)

German submarine U-764 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 1 February 1941 by Kriegsmarinewerft Wilhelmshaven as yard number 147, launched on 13 March 1943 and commissioned on 6 May 1943 under Oberleutnant zur See Hanskurt von Bremen.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-764 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[2] She 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 Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat 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, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-764 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.[2]

Service history

The boat's career began with training at 8th U-boat Flotilla on 6 May 1943, followed by active service on 1 November 1943 as part of the 9th Flotilla in Brest, France. On 1 October 1944, she transferred to 11th Flotilla in Bergen, Norway; as the situation worsened in France following the invasion. She remained with 11th Flotilla until her surrender at the end of the war.

In eight patrols she sank one merchant ship, for a total of 638 gross register tons (GRT), and 2 warships sunk (1,696 tons).

Wolfpacks

U-764 took part in eight wolfpacks, namely

  • Eisenhart 3 (9–15 November 1943)
  • Schill 3 (18–22 November 1943)
  • Weddigen (22–29 November 1943)
  • Hinein (26 January – 3 February 1944)
  • Igel 1 (3–17 February 1944)
  • Hai 1 (17–22 February 1944)
  • Preussen (22 February – 13 March 1944)
  • Dragoner (21–28 May 1944)

Fate

U-764 surrendered on 14 May 1945 at Loch Eriboll, Scotland. She was sunk as a target in position Lua error in package.lua at line 80: module 'strict' not found. as part of Operation Deadlight on 2 February 1946.

Summary of raiding history

Date Name Nationality Tonnage[Note 1] Fate[3]
15 June 1944 HMS Blackwood  Royal Navy 1,085 Sunk
20 August 1944 Coral  United Kingdom 638 Sunk
25 August 1944 HMS LCT-1074  Royal Navy 611 Sunk

See also

References

Notes

  1. ↑ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 2.2 2.3 Gröner 1991, pp. 43-46.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Bibliography

  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.

External links

  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
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