History | |
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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 | |
Class and type | Type VIIC submarine |
Displacement |
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Length |
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Beam |
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Height | 9.60 m (31 ft 6 in) |
Draught | 4.74 m (15 ft 7 in) |
Installed power |
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Propulsion |
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Speed |
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Range | |
Test depth |
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Complement | 4 officers, 40–56 enlisted |
Armament |
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Service record | |
Part of: |
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Identification codes: | M 50 406 |
Commanders: |
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Operations: |
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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.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-307 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. [2] 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). [2]
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). [2] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-307 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty. [2]
Despite carrying out 13 war patrols between July 1943 and April 1945, U-307 sank only two vessels; the 7,176 GRT American Liberty ship SS William S. Thayer on 30 April 1944, fifty miles south of Bear Island, and the 50 GRT Norwegian Army motor boat Lennox in Van Mijenfjorden, Spitsbergen, on 18 August 1944.
In September 1944, together with the supply ship Carl J. Busch , U-307 transported the men of Operation Haudegen, a German military meteorological mission, to Svalbard.
U-307 took part in twelve wolfpacks, namely:
U-307 was sunk on 29 April 1945 in the Barents Sea near Murmansk, Russia, in position 69°24′N33°44′E / 69.400°N 33.733°E by depth charges from the British Loch class frigate HMS Loch Insh. There were 37 dead and 14 survivors.
Date | Ship Name | Nationality | Tonnage (GRT) | Fate [3] |
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30 April 1944 | William S. Thayer | United States | 7,176 | Sunk |
18 August 1944 | Lennox | Norway | 50 | Sunk |
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