German submarine U-843

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Career
Name: U-843
Ordered: 20 January 1941
Builder: AG Weser, Bremen
Yard number: 1049
Laid down: 21 April 1942
Launched: 15 December 1942
Commissioned: 24 March 1943
Fate: Sunk, 9 April 1945
General characteristics [1]
Type: Type IXC/40 submarine
Displacement: 1,144 t (1,126 long tons) surfaced
1,257 t (1,237 long tons) submerged
Length: 76.76 m (251 ft 10 in) o/a
58.75 m (192 ft 9 in) pressure hull
Beam: 6.86 m (22 ft 6 in) o/a 4.44 m (14 ft 7 in) pressure hull
Height: 9.6 m (31 ft 6 in)
Draft: 4.67 m (15 ft 4 in)
Propulsion: 2 × MAN M 9 V 40/46 supercharged 9-cylinder diesel engines, 4,400 hp (3,281 kW)
2 × SSW GU 345/34 double-acting electric motors, 1,000 hp (746 kW)
Speed: 19 knots (35 km/h; 22 mph) surfaced
7.3 knots (13.5 km/h; 8.4 mph) submerged
Range: 138,500 nmi (256,500 km; 159,400 mi) at 10 knots (19 km/h) surfaced
63 nautical miles (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 230 m (750 ft)
Complement: 4 officers, 44 enlisted
Armament:
Service record[2][3]
Part of: 4th U-boat Flotilla
(24 March–31 October 1943)
2nd U-boat Flotilla
(1 November 1943–30 September 1944)
33rd U-boat Flotilla
(1 October 1944–9 April 1945)
Commanders: Kptlt. Oskar Herwartz
(24 March 1943–9 April 1945
Operations: 1st patrol: 15 October–15 December 1943
2nd patrol: 19 February–11 June 1944
3rd patrol: 10 December 1944–9 April 1945
Victories: 1 commercial ship sunk (8,261 GRT)

German submarine U-843 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 21 April 1942 at the AG Weser yard in Bremen, launched on 15 December 1942, and commissioned on 24 March 1943 under the command of Kapitänleutnant Oskar Herwartz. After training with 4th U-boat Flotilla in the Baltic Sea, U-843 was transferred to 2nd U-boat Flotilla on 1 November 1943 for front-line service, and was transferred to 33rd U-boat Flotilla on 1 October 1944. She carried out three war patrols, sinking one ship, and was sunk by a British aircraft in April 1945. In 1958 the wreck was raised, and then broken up at Gothenburg.[2]

Service history[edit]

1st patrol[edit]

U-843 first sailed from Kiel on 7 October 1943, arriving at Trondheim, Norway, on the 12th.[3] She commenced her first war patrol on 15 October, and headed out into the northern Atlantic. However, she had no successes, and finally arrived at Lorient, France, on 15 December after a voyage lasting 62 days.[4]

2nd patrol[edit]

The U-boat left Lorient on 19 February 1944, bound for the Indian Ocean.[5] En route, on 8 April, she torpedoed and sank the unescorted 8,261 ton British merchant ship Nebraska, dispersed from Convoy OS-71, south-west of Ascension Island. Two crew members were lost, while the master, 55 crewmen, eight gunners, and two stowaways were rescued.[6] Oskar Herwarts surfaced U-843 and offered assistance to the three lifeboats launched from the Nebraska. This included charts torn from a chart atlas and gave position and course to steer to Brazil. Two lifeboats made landfall close to Recife months later. A third boat was rescued by a British warship after several weeks.

An American B-24 bomber of US Navy Squadron VB-107 attacked the U-boat on 10 April, damaging its stern torpedo tubes. The U-boat abandoned its planned operations off Cape Town and continued into the Indian Ocean. U-843 arrived at the Japanese-controlled port of Batavia, Dutch East Indies, on 11 June after 114 days at sea.[5] The U-boat then sailed to Singapore on 13–15 June, remaining there until 1 November, before returning to Batavia.[3]

3rd patrol[edit]

U-843 departed Batavia on 10 December 1944 with a cargo of zinc,[7] and sailed back across the Indian Ocean, around the Cape, and up through the Atlantic, arriving back in Bergen, Norway, on 3 April 1945.[8]

Fate[edit]

Leaving Bergen on 6 April 1945,[3] the U-843 was sunk on the 9 April, in the Kattegat, west of Gothenburg, in position 57°32′N 11°23′E / 57.533°N 11.383°E / 57.533; 11.383Coordinates: 57°32′N 11°23′E / 57.533°N 11.383°E / 57.533; 11.383, by rockets from a British Mosquito fighter-bomber of No. 235 Squadron RAF. Of the U-boat's crew of 56, only 12 survived.[2]

Summary of Raiding Career[edit]

Date Ship Name Nationality Tonnage (GRT) Fate[9]
8 April 1944 Nebraska  United Kingdom 8,261 Sunk

References[edit]

Notes
  1. ^ Gröner, p. 105-7.
  2. ^ a b c "The Type IXC/40 boat U-843 - German U-boats of WWII - uboat.net". uboat.net. Retrieved 11 February 2010. 
  3. ^ a b c d "War Patrols by German U-boat U-843 - Boats - uboat.net". uboat.net. Retrieved 11 February 2010. 
  4. ^ "Patrol of U-boat U-843 from 15 Oct 1943 to 15 Dec 1943 - U-boat patrols - uboat.net". uboat.net. Retrieved 11 February 2010. 
  5. ^ a b "Patrol of U-boat U-843 from 19 Feb 1944 to 11 Jun 1944 - U-boat patrols - uboat.net". uboat.net. Retrieved 11 February 2010. 
  6. ^ "Nebraska (Steam merchant) - Ships hit by U-boats - uboat.net". uboat.net. Retrieved 11 February 2010. 
  7. ^ Bishop, C.
  8. ^ "Patrol of U-boat U-843 from 10 Dec 1944 to 3 Apr 1945 - U-boat patrols - uboat.net". uboat.net. Retrieved 11 February 2010. 
  9. ^ "U-843 successes". UBoat.net. Retrieved 13 February 2014. 
Bibliography
  • Gröner, Erich (1985). "U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher". Die deutschen Kriegsschiffe 1815-1945 III (Koblenz: Bernard&Graefe). ISBN 3-7637-4802-4. 

External links[edit]

See also[edit]