Unterseeboot 122
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| Career (Nazi Germany) |  |
|---|---|
| Class and type: | Type IXB U-boat |
| Name: | U-122 |
| Ordered: | 15 December 1937 |
| Builder: | AG Weser, Bremen |
| Laid down: | 5 March 1939 |
| Launched: | 20 December 1939 |
| Commissioned: | 30 March 1940 |
| Fate: | Missing since 22 June 1940 |
| General characteristics | |
| Displacement: | Surfaced 1,051 tons tons submerged 1,178 tons |
| Length: | Overall 76.5 m (251 ft 0 in) pressure hull 58.7 m (192 ft 7 in) |
| Beam: | Overall 6.8 m (22 ft 4 in) pressure hull 4.4 m (14 ft 5 in) |
| Draught: | 4.7 m (15 ft 5 in) |
| Propulsion: | Diesel/Electric, 2x MAN M9V40/46 supercharged 9 cylinder diesel engines, 4,400 hp (3,300kW), 2xSSW GU345/34 double acting electric motors, 1000 hp (740kW) |
| Speed: | Surfaced 18.2 knots (33.7 km/h) submerged 7.3 knots (13.5 km/h) |
| Range: | Surfaced: 22,200 km (12,000 nmi) at 10 knots submerged: 118 km (64 nmi) at 4 knots (7 km/h) |
| Test depth: | 230 m (750 ft) |
| Complement: | 48 to 56 officers & ratings |
| Armament: |
|
Unterseeboot 122 was a German Type IXB U-boat that served with the Kriegsmarine during the Second World War.
She was ordered on 15 December 1937 and was laid down on 5 March 1939 at AG Weser, Bremen, becoming 'werk 954'. She was launched on 20 December 1939 and commissioned under her first and only commander Korvkpt. Hans-Günther Looff on 30 March 1940. She carried out two patrols with the 2. Flottille, spending some time as the front boat. On her first patrol in May 1940 she transported some material consisting of one 88 mm Flak (anti-aircraft gun) with ammunition, some bombs, 90 cbm (some 750 barrels) of fuel for aircraft and some motor oil to Trondheim, Norway during the Norwegian campaign. On 23 May 1940 she encountered an enemy submarine in the North Atlantic, but neither boat attacked each other. She sank a single ship during her career, the SS Empire Conveyor on 20 June 1940.
She was declared missing with all hands after 22 June 1940 between the North Sea and the Bay of Biscay. She may have collided with the vessel San Filipe on 22 June, or been sunk by depth charges from corvette HMS Arabis on 23 June.
