German submarine U-228

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History
War ensign of Germany (1938-1945).svg Nazi Germany
NameU-228
Ordered7 December 1940
Builder Germaniawerft, Kiel
Yard number658
Laid down18 October 1941
Launched30 July 1942
Commissioned12 September 1942
Stricken5 October 1944
FateBroken up, 1944 – 1945
General characteristics
Class and 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
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 [1] [2]
Part of:
Identification codes: M 49 245
Commanders:
  • Kptlt. Erwin Christophersen
  • 12 September 1942 – August 1944
  • Kptlt. Herbert Engel
  • August – 4 October 1944
Operations:
  • 6 patrols:
  • 1st patrol:
  • 6 February – 29 March 1943
  • 2nd patrol:
  • 4 May – 19 July 1943
  • 3rd patrol:
  • a. 18 – 19 September 1943
  • b. 27 – 29 September 1943
  • c. 11 – 12 October 1943
  • d. 23 October – 20 December 1943
  • 4th patrol:
  • a. 24 – 26 February 1944
  • b. 4 – 7 March 1944
  • c. 11 – 13 March 1944
  • d. 19 – 26 March 1944
  • 5th patrol:
  • 6 – 16 June 1944
  • 6th patrol:
  • 12 August – 20 September 1944
Victories: None

German submarine U-228 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II.

Contents

Built at the Friedrich Krupp Germaniawerft shipyard in Kiel, the U-boat was laid down on 18 October 1941, launched on 30 July 1942 and commissioned on 12 September 1942. U-228 served with the 5th U-boat Flotilla for training, and later with the 6th U-boat Flotilla from 1 March 1943 to 5 October 1944 as a front-line boat. [1] U-228 completed six patrols without sinking any ships, but shot down two aircraft. She was damaged at Bergen, Norway, struck on 5 October 1944 and later broken up. [1]

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-228 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. [3] 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 AEG GU 460/8-276 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). [3]

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). [3] 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-228 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. [3]

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References

  1. 1 2 3 Helgason, Guðmundur. "The Type VIIC boat U-228". German U-boats of WWII - uboat.net. Retrieved 23 December 2009.
  2. Helgason, Guðmundur. "War Patrols by German U-boat U-228". German U-boats of WWII - uboat.net. Retrieved 23 December 2009.
  3. 1 2 3 4 Gröner 1991, pp. 43–46.

Bibliography