| History | |
|---|---|
| Name | U-622 |
| Ordered | 15 August 1940 |
| Builder | Blohm & Voss,Hamburg |
| Yard number | 598 |
| Laid down | 1 July 1941 |
| Launched | 19 March 1942 |
| Commissioned | 14 May 1942 |
| Fate | Sunk 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 & type | Type VIICsubmarine |
| Displacement | |
| Length |
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| Beam |
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| Draught | 4.74 m (15 ft 7 in) |
| Installed power |
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| Propulsion |
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| Speed |
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| Range | |
| Test depth |
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| Complement | 4 officers, 40–56 enlisted |
| Armament |
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| Service record[1] | |
| Part of: |
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| Identification codes: | M 04 155 |
| Commanders: | |
| Operations: |
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| 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.
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]
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.
U-622 took part in onewolfpack, namely:
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]