German submarine U-122 (1939)

History
Nazi Germany
Name	U-122
Ordered	15 December 1937
Builder	DeSchiMAG AG Weser, Bremen
Yard number	954
Laid down	5 March 1939
Launched	20 December 1939
Commissioned	30 March 1940
Fate	Missing since 22 June 1940[1]
General characteristics
Class and type	Type IXB submarine
Displacement	1,051 t (1,034 long tons) surfaced 1,178 t (1,159 long tons) submerged
Length	76.50 m (251 ft) o/a 58.75 m (192 ft 9 in) pressure hull
Beam	6.76 m (22 ft 2 in) o/a 4.40 m (14 ft 5 in) pressure hull
Draught	4.70 m (15 ft 5 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels) 1,000 PS (740 kW; 990 shp) (electric)
Propulsion	2 shafts 2 × diesel engines 2 × electric motors double-acting electric motors, 1,000 PS (990 shp; 740 kW)
Speed	18.2 knots (33.7 km/h; 20.9 mph) surfaced 7.3 knots (13.5 km/h; 8.4 mph) submerged
Range	12,000 nmi (22,000 km; 14,000 mi) at 10 knots (19 km/h; 12 mph) surfaced 64 nmi (119 km; 74 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	230 m (750 ft)
Complement	48 to 56 officers and ratings
Armament	6 × torpedo tubes (4 bow, 2 stern) 22 × 53.3 cm (21 in) torpedoes 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds) 1 × 3.7 cm (1.5 in) SK C/30 AA gun 1 × twin 2 cm FlaK 30 AA guns
Service record
Part of:	2nd U-boat Flotilla 30 March – 22 June 1940
Identification codes:	M 12 650
Commanders:	K.Kapt. Hans-Günther Looff 30 March – 22 June 1940
Operations:	2 patrols: 1st patrol: a. 16 – 19 May 1940 b. 21 – 24 May 1940 c. 24 – 25 May 1940 2nd patrol: 13 – 22 June 1940
Victories:	1 merchant ship sunk (5,911 GRT)

German submarine U-122 was a Type IXB U-boat of Nazi Germany's Kriegsmarine that operated during World War II.

She was ordered on 15 December 1937 and was laid down on 5 March 1939 at DeSchiMAG AG Weser, Bremen, becoming yard number 954. She was launched on 20 December 1939 and commissioned under her first and only commander, Korvettenkapitän Hans-Günther Looff on 30 March 1940.