German submarine U-711

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Career (Nazi Germany)
Name: U-711
Operator: Kriegsmarine
Ordered: 7 December 1940
Builder: H. C. Stülcken Sohn, Hamburg
Yard number: 777
Laid down: 31 July 1941
Launched: 25 June 1942
Commissioned: 2 September 1942
Fate: Sunk 4 May 1945 at 68°48′N 16°38′E / 68.800°N 16.633°E / 68.800; 16.633Coordinates: 68°48′N 16°38′E / 68.800°N 16.633°E / 68.800; 16.633
General characteristics
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
Draft: 4.74 m (15 ft 7 in)
Installed power: 2 × supercharged Germania-Werft 6 cylinder, four-stroke F46 diesel engines
2 × GL RP 137/c electric motors
Propulsion: 2 × shafts
2 × 1.23 m (4 ft 0 in) propellers
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 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph)
Test depth: 230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement: 44–60 officers & ratings
Armament:

German submarine U-711 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Ordered 7 December 1940, she was laid down 31 July 1941 and launched 25 June 1942. She had a relatively brief career from 2 September 1942 till 1 April 1943 as part of a training flottila, and then went on to active service from 1 April 1943 till 24 April 1943. During this time she was commanded by Oberleutnant zur See Hans-Günther Lange (who was awarded the Knights Cross).

Patrol History[edit]

During her active service career, U-711 sunk or damaged three ships, 1 ship sunk 10 GRT, 1 warship sunk, total tonnage 925 tons 1 ship damaged, total tonnage 20 GRT.

U-711 attacked and sank HMS Bluebell on 17 February 1945. On 4 May 1945 the U boat was damaged during the Royal Navy Fleet Air arm, Operation Judgement, which was actually aimed at the depot ships Black Watch and Senja. She herself was sunk 4 May 1945 in the Arctic at Kilbotn, near Harstad, Norway. Bombs from Avenger aircraft, operating off HMS Trumpeter and HMS Queen, destroyed her, leaving 40 dead and 12 survivors.

She sank after attempts by Hans-Günther Lange and seven other crew members to keep her afloat. The rest of the crew had gone on board the ship Black Watch and were killed. Only a few hours earlier the captain had received the signal from Germany ordering all U-boats to cease attacks on allied shipping.[1]

Summary of Raiding Career[edit]

Date Ship Name Nationality Tonnage (GRT) Fate[2]
13 April 1944 Solvoll  Norway 10 Sunk
17 February 1945 HMS Bluebell  Royal Navy 925 Sunk
22 March 1945 BPS-5  Soviet Navy 20 Damaged

References[edit]

Notes
  1. ^ Harald Isachsen (2009), Operation Judgement: Angrepet på <<Black Watch>>, Kilbotn 4 Mai 1945, ISBN 978-82-998024-2-0
  2. ^ "U-711 successes". UBoat.net. Retrieved 10 February 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]