German submarine U-129 (1941)

U-505, a typical Type IXC boat
History
Nazi Germany
Name	U-129
Ordered	7 August 1939
Builder	DeSchiMAG AG Weser in Bremen
Yard number	992
Laid down	30 July 1940
Launched	28 February 1941
Commissioned	21 May 1941
Fate	Taken out of service at Lorient 4 July 1944; scuttled on 18 August, raised and broken up, 1946
General characteristics
Class and type	Type IXC submarine
Displacement	1,120 t (1,100 long tons) surfaced 1,232 t (1,213 long tons) submerged
Length	76.76 m (251 ft 10 in) 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
Height	9.60 m (31 ft 6 in)
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
Speed	18.3 knots (33.9 km/h; 21.1 mph) surfaced 7.3 knots (13.5 km/h; 8.4 mph) submerged
Range	13,450 nmi (24,910 km; 15,480 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	4 officers, 44 enlisted48 to 56
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:	4th U-boat Flotilla 21 May – 30 June 1941 2nd U-boat Flotilla 1 July 1941
Identification codes:	M 41 124
Commanders:	Kptlt. Nicolai Clausen 21 May 1941 – 13 May 1942 K.Kapt. Hans Witt 14 May 1942 – 8 July 1943 Oblt.z.S. Richard von Harpe 12 July 1943 – 19 July 1944
Operations:	10 patrols: 1st patrol: 3 – 30 August 1941 2nd patrol: 27 September – 8 October 1941 3rd patrol: 21 October 1941 – 28 December 1941 4th patrol: 25 January – 5 April 1942 5th patrol: 20 May – 21 August 1942 6th patrol: 28 September 1942 – 6 January 1943 7th patrol: 11 March – 29 May 1943 8th patrol: 27 July – 9 September 1943 9th patrol: a. 9 – 11 October 1943 b. 12 October 1943 – 31 January 1944 10th patrol: 22 March – 19 July 1944
Victories:	29 merchant ships sunk (143,748 GRT)

German submarine U-129 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II. It was laid down at the AG Weser yard, Bremen as yard number 992 on 30 July 1940, launched on 28 February 1941 and was commissioned on 21 May with Kapitänleutnant Nicolai Clausen in command.

Its service life began with training in the 4th U-boat Flotilla; she moved to the 2nd Flotilla for operations on 1 July 1941.

It sank 29 ships, a total of 143,748 gross register tons (GRT), on ten patrols.