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 & 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.

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 & 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)