German submarine U-307

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Career (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[1]
General characteristics [2]
Class & type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beam: 6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Height: 9.6 m (31 ft 6 in)
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged Germaniawerft 6-cylinder 4-stroke F46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × GL RP 137/c electric motors, totalling 750 shp (560 kW) and max rpm: 296
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: 44–52 officers and ratings
Armament:
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)
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
Victories: 2 vessels (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.

Service history[edit]

Despite carrying out 13 war patrols between July 1943 and April 1945, U-307 sank only two vessels; the 7,176-ton American Liberty ship SS William S. Thayer on 30 April 1944, fifty miles south of Bear Island, and the 50-ton Norwegian Army motor boat Lennox in Van Mijenfjorden, Spitsbergen, on 18 August 1944.

In September 1944, together with the supply ship Karl J. Busch, U-307 transported the men of Operation Haudegen, a German military meteorological mission, to Svalbard.

Wolf Packs[edit]

U-307 took part in 12 wolf packs, namely.

  • Wiking (5 September - 8 October 1943)
  • Monsun (3 October - 23 November 1943)
  • Eisenbart (28 October - 8 December 1943)
  • Boreas (28 February - 10 March 1944)
  • Thor (17 - 26 March 1944)
  • Donner (17 - 20 April 1944)
  • Donner & Keil (20 April - 3 May 1944)
  • Grimm (31 May - 6 June 1944)
  • Trutz (8 June - 10 July 1944)
  • Rasmus (6 - 13 February 1945)
  • Hagen (13 - 21 March 1945)
  • Faust (21 - 29 April 1945)

Fate[edit]

U-307 was sunk on 29 April 1945 in the Barents Sea near Murmansk, Russia, in position 69°24′N 33°44′E / 69.400°N 33.733°E / 69.400; 33.733Coordinates: 69°24′N 33°44′E / 69.400°N 33.733°E / 69.400; 33.733 by depth charges from the British Loch class frigate HMS Loch Insh. There were 37 dead and 14 survivors.

Summary of Raiding Career[edit]

Date Ship Name Nationality Displacement Fate[3]
30 April 1944 William S. Thayer  United States 7,176 Sunk
18 August 1944 Lennox  Norway 50 Sunk

References[edit]

Notes
  1. ^ Kemp, Paul: U-Boats Destroyed - German Submarine Losses in the World Wars, 1999, Arms & Armour, ISBN 1-85409-515-3, p. 254.
  2. ^ Gröner 1985, pp. 72-74.
  3. ^ Helgason, Guðmundur. "Ships hit by U-307". German U-boats of WWII - uboat.net. Retrieved 26 December 2014. 
Bibliography
  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945. Der U-Boot-Krieg (in German) IV (Hamburg, Berlin, Bonn: Mittler). ISBN 3-8132-0514-2. 
  • Gröner, Erich (1985). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. Die deutschen Kriegsschiffe 1815-1945 (in German) III (Koblenz: Bernard & Graefe). ISBN 3-7637-4802-4. 

External links[edit]

  • Hofmann, Markus. "U-307". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 26 December 2014. 
  • Helgason, Guðmundur. "The Type VIIC boat U-307". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.