German submarine U-307

History
Nazi Germany
Name	U-307
Ordered	20 January 1941
Builder	Flender Werke, Lübeck
Yard number	307
Laid down	5 November 1941
Launched	30 September 1942
Commissioned	18 November 1942
Fate	Sunk by depth charges, 29 April 1945
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 or 26 TMA mines; 1 × 8.8 cm (3.46 in) deck gun (220 rounds); 2 × twin 2 cm (0.79 in) C/30 anti-aircraft guns;
Service record
Part of:	8th U-boat Flotilla; 18 November 1942 – 30 April 1943; 11th U-boat Flotilla; 1 May – 31 October 1943; 13th U-boat Flotilla; 1 November 1943 – 29 April 1945;
Identification codes:	M 50 406
Commanders:	Oblt.z.S. Friedrich-Georg Herrle; 18 November 1942 – 1 December 1944; Oblt.z.S. Erich Krüger; 2 December 1944 – 29 April 1945;
Operations:	13 patrols:; 1st patrol:; 9 – 12 July 1943; 2nd patrol:; 16 July – 21 August 1943; 3rd patrol:; 2 September – 9 October 1943; 4th patrol:; a. 27 October – 9 December 1943; b. 12 – 15 December 1943; 5th patrol:; 23 February – 27 March 1944; 6th patrol:; 16 April – 5 May 1944; 7th patrol:; a. 25 May – 12 July 1944; b. 2 – 3 August 1944; 8th patrol:; a. 4 – 23 August 1944; b. 24 – 25 August 1944; c. 29 – 31 August 1944; 9th patrol:; a. 9 September – 4 October 1944; b. 5 – 7 October 1944; c. 8 – 10 October 1944; d. 15 – 20 January 1945; 10th patrol:; 24 January – 16 February 1945; 11th patrol:; 20 – 28 February 1945; 12th patrol:; 12 March – 1 April 1945; 13th patrol:; 16 – 29 April 1945;
Victories:	2 merchant ships sunk ; (7,226 GRT)

German submarine U-307 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The U-boat was laid down on 5 November 1941, and commissioned on 18 November 1942.

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