German submarine U-377

History

Nazi Germany
Name:	U-377
Ordered:	16 October 1939
Builder:	Howaldtswerke, Kiel
Yard number:	8
Laid down:	8 April 1940
Launched:	15 August 1941
Commissioned:	2 October 1941
Fate:	Sunk, January 1944
General characteristics
Class and type:	Type VIIC submarine
Displacement:	769 tonnes (757 long tons) surfaced 871 t (857 long tons) submerged
Length:	67.10 m (220 ft 2 in) o/a 50.50 m (165 ft 8 in) pressure hull
Beam:	6.20 m (20 ft 4 in) o/a 4.70 m (15 ft 5 in) pressure hull
Height:	9.60 m (31 ft 6 in)
Draught:	4.74 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:	2 shafts 2 × diesel engines 2 × electric motors
Speed:	17.7 knots (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)
Complement:	4 officers, 40–56 enlisted
Armament:	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern) 14 × torpedoes 1 × 8.8 cm (3.46 in) deck gun (220 rounds) various AA guns
Service record
Part of:	6th U-boat Flotilla 2 October 1941 – 30 June 1942 11th U-boat Flotilla 1 July 1942 – 28 February 1943 9th U-boat Flotilla 1 March 1943 – 17 January 1944
Identification codes:	M 16 791
Commanders:	Kptlt. Otto Köhler 2 October 1941 – 2 August 1943 Oblt.z.S. Gerhard Kluth 3 August 1943 – 17 January 1944 Lt.z.S. Ernst-August Gerke (acting) 22 September – 10 October 1943
Operations:	1st patrol: 14–28 February 1942 2nd patrol: 6–19 March 1942 3rd patrol: 5–19 April 1942 4th patrol: 25–29 May 1942 5th patrol: 18–25 July 1942 6th patrol: 30 August – 24 September 1942 7th patrol: 7–24 October 1942 8th patrol: 30 January – 18 March 1943 9th patrol: 15 April – 7 June 1943 10th patrol: 26–30 August 1943 11th patrol: 15 December 1943 – 17 January 1944
Victories:	None

German submarine U-377 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 8 April 1940 at the Howaldtswerke yard in Kiel, launched on 15 August 1941, and commissioned on 2 October 1941 under the command of Kapitänleutnant Otto Köhler.

U-377 was attached to the 6th U-boat Flotilla, and was ready for front-line service from 1 February 1942. She served with the 11th U-boat Flotilla based in Norway from July 1942, and was transferred to the 9th U-boat Flotilla based in France on 1 March 1943. She sailed on 11 war patrols between February 1942 and January 1944, but sank no ships, before she was sunk with the loss of all hands in January 1944 south-west of Ireland, possibly by one of her own homing torpedoes or possibly by depth charges from the British destroyer HMS Wanderer and the frigate HMS Glenarm.

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-377 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel 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, two Garbe, Lahmeyer & Co. RP 137/c double-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).

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