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German submarineU-622

Coordinates:63°27′N10°23′E / 63.450°N 10.383°E /63.450; 10.383
From Wikipedia, the free encyclopedia
German World War II submarine
History
Nazi Germany
NameU-622
Ordered15 August 1940
BuilderBlohm & Voss,Hamburg
Yard number598
Laid down1 July 1941
Launched19 March 1942
Commissioned14 May 1942
FateSunk on 24 July 1943 nearTrondheim in position63°27′N10°23′E / 63.450°N 10.383°E /63.450; 10.383, by bombs in a US air raid.
General characteristics
Class & typeType VIICsubmarine
Displacement
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
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
  • 17.7knots (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]
Part of:
Identification codes:M 04 155
Commanders:
Operations:
  • 4 patrols:
  • 1st patrol:
  • a. 12 October – 12 November 1942
  • b. 14 – 17 November 1942
  • 2nd patrol:
  • 28 December 1942 – 29 January 1943
  • 3rd patrol:
  • a. 9 February – 15 March 1943
  • b. 16 – 18 March 1943
  • c. 17 – 21 May 1943
  • 4th patrol:
  • a. 29 May – 5 June 1943
  • b. 14 June – 10 July 1943
Victories:None

German submarineU-622 was aType VIICU-boat built forNazi Germany'sKriegsmarine for service duringWorld War II.She waslaid down on 1 July 1941 byBlohm & Voss,Hamburg, as yard number 598,launched on 19 March 1942 andcommissioned on 14 May 1942 underOberleutnant zur See Horst-Thilo Queck.

Design

[edit]

German Type VIIC submarines were preceded by the shorterType VIIB submarines.U-622 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), apressure hull length of 50.50 m (165 ft 8 in), abeam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and adraught of 4.74 m (15 ft 7 in). The submarine was powered by twoGermaniawerft F46 four-stroke, six-cylindersuperchargeddiesel 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, twoBrown, Boveri & Cie GG UB 720/8double-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-622 was fitted with five 53.3 cm (21 in)torpedo tubes (four fitted at the bow and one at the stern), fourteentorpedoes, one8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and a2 cm (0.79 in) C/30 anti-aircraft gun. The boat had acomplement of between forty-four and sixty.[2]

Service history

[edit]

The boat's career began with training at8th U-boat Flotilla on 14 May 1942, followed by active service on 2 October 1942 as part of the11th Flotilla until 31 May 1943, when she then transferred to13th Flotilla on 1 June 1943 for the remainder of her service.

In four patrols she sank no ships.

Wolfpacks

[edit]

U-622 took part in onewolfpack, namely:

  • Nordwind (24 – 28 January 1943)

Fate

[edit]

U-622 was sunk on 24 July 1943 nearTrondheim in position63°27′N10°23′E / 63.450°N 10.383°E /63.450; 10.383, by AmericanB-17 bombers of the95th Bomb Group. It was one of the only U-boats sunk by high-level bombing during World War II.[3]

References

[edit]
  1. ^Helgason, Guðmundur."The Type VIIC boat U-622".German U-boats of WWII - uboat.net. Retrieved5 November 2014.
  2. ^abcdGröner 1991, pp. 43–46.
  3. ^Morris, Rob with Ian Hawkins (2012).The wild blue yonder and beyond the 95th Bomb Group in war and peace. Washington, D.C.: Potomac Books. pp. 103–104.ISBN 978-1-59797-717-3. Retrieved5 November 2014.

Bibliography

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External links

[edit]
Type VIIA
Type VIIB
Type VIIC
Type VIIC/41
Type VIID
Type VIIF
Shipwrecks and maritime incidents in July 1943
Shipwrecks
Other incidents

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