German submarine U-378

History
Nazi Germany
Name	U-378
Ordered	16 October 1939
Builder	Howaldtswerke, Kiel
Yard number	9
Laid down	3 May 1940
Launched	13 September 1941
Commissioned	30 October 1941
Fate	Sunk in mid-Atlantic by US aircraft on 20 October 1943
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); 1 x 2 cm (0.79 in) C/30 AA gun;
Service record
Part of:	8th U-boat Flotilla; 30 October 1941 – 28 February 1942; 3rd U-boat Flotilla; 1 March – 30 June 1942; 11th U-boat Flotilla; 1 July 1942 – 30 April 1943; 3rd U-boat Flotilla; 1 May – 20 October 1943;
Identification codes:	M 34 668
Commanders:	Kptlt. Alfred Hoschatt; 30 October 1941 – 11 October 1942; Oblt.z.S. Peter Schrewe; 18 June – 10 September 1942; Kptlt. Hans-Jürgen Zetzsche; 10 September – 11 October 1942 (acting); Kptlt. Erich Mäder; 12 October 1942 – 20 October 1943;
Operations:	8 patrols:; 1st patrol:; a. 11 – 12 March 1942; b. 15 March – 1 April 1942; 2nd patrol:; 7 – 20 April 1942; 3rd patrol:; a. 29 April – 6 May 1942; b. 8 – 12 May 1942; 4th patrol:; a. 12 September 1942; b. 17 – 19 October 1942; c. 7 – 9 November 1942; 5th patrol:; a. 11 November – 12 December 1942; b. 15 – 17 December 1942 ; c. 7 – 12 March 1943 ; 6th patrol:; 15 March – 1 April 1943; 7th patrol:; 12 April – 4 June 1943; 8th patrol:; 6 September – 20 October 1943;
Victories:	1 warship sunk ; (1,920 tons)

German submarine U-378 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

She carried out eight patrols before being sunk by US aircraft on 20 October 1943 in mid-Atlantic at position 47°40′N 28°27′W.

She was a member of 16 wolfpacks.

She sank one warship.

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