German submarine U-88 (1941)

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History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-88
Ordered25 January 1939
Builder Flender Werke, Lübeck
Yard number292
Laid down1 July 1940
Launched16 August 1941
Commissioned15 October 1941
FateSunk 12 September 1942 south of Svalbard by HMS Faulknor [1]
General characteristics
Class and type Type VIIC submarine
Displacement
Length
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 27 945
Commanders:
  • Kptlt. Heino Bohmann
  • 15 October 1941 – 12 September 1942
Operations:
  • 3 patrols:
  • 1st patrol:
  • a. 29 April – 3 May 1942
  • b. 4 – 6 May 1942
  • 2nd patrol:
  • 17 June – 11 July 1942
  • 3rd patrol:
  • 25 August – 12 September 1942
Victories: 2 merchant ships sunk
(12,304  GRT)

German submarine U-88 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Contents

She was laid down at the Flender Werke in Lübeck as yard number 292, launched on 16 August 1941 and commissioned on 15 October with Kapitänleutnant Heino Bohmann in command.

She was a fairly successful boat, succeeding in sinking 12,304 GRT of Allied shipping in a career lasting just one year over three patrols.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-88 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 MAN M 6 V 40/46 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 Brown, Boveri & Cie GG UB 720/8 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-88 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 a 2 cm (0.79 in) C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty. [2]

Service history

First patrol

Having moved from Kiel to Kirkenes in Norway in April 1942, U-88 departed for her first patrol on the 29th. She returned on 3 May.

Second patrol

The boat moved from Kirkenes to Narvik in early May and set-off for her second patrol on 17 June 1942. She sank two American ships, part of the ill-fated Convoy PQ 17, on 5 July. After a three-hour pursuit, the Carlton was hit by a torpedo which did not detonate. A second torpedo exploded on impact, the ship sank in ten minutes. U-88 then hit the Daniel Morgan which had already been attacked by German aircraft. Three men died, there were 51 survivors.

Third patrol and loss

U-88 left Narvik on 25 August 1942 for her final patrol. She was sunk south of Spitzbergen at 75°04′N04°49′E / 75.067°N 4.817°E / 75.067; 4.817 by depth charges from the British destroyer HMS Faulknor on 12 September. Forty-six men died; there were no survivors.

Alternate account of loss

U-88 was sunk on 14 September 1942 by depth charges from the British destroyer HMS Onslow. [3]

Wolfpacks

U-88 took part in three wolfpacks, namely:

Summary of raiding history

DateShipNationalityTonnageFate [4]
5 July 1942 Carlton Flag of the United States (1912-1959).svg  United States 5,127Sunk
5 July 1942 Daniel Morgan Flag of the United States (1912-1959).svg  United States 7,177Sunk

See also

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References

  1. ↑ Kemp 1999, p. 89.
  2. 1 2 3 4 Gröner 1991, pp. 43–46.
  3. ↑ Smith 1968, pp. 138–140.
  4. ↑ Helgason, Guðmundur. "Ships hit by U-88". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.

Bibliography

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