Unterseeboot 553

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7. Unterseebootsflottille (Front Boat)
1941-04-01
3. Unterseebootsflottille (Training)
1942-12-01 - 1943-01-20

1 ship damaged for a total of 8,106 GRT

German submarine U-553 was a Type VIIC U-boat built for the German Kriegsmarine for service during World War II.

Contents

History

Her keel was laid down 21 November 1939, by Blohm + Voss of Hamburg. She was commissioned 23 December 1940, with Kapitänleutnant Karl Thurmann in command. Thurmann commanded her for her entire career.

On 25 April 1941 major engine trouble forced U-553 to return to base.

On 20 January 1943, U-553 sent a radio message: "Sehrohr unklar" (periscope unready for action), and was never heard from again. She had suffered no casualties to her crew until lost with all hands.

Ships sunk

U-553 conducted ten patrols, sinking 14 ships totalling 71,779 tons and damaging one other totalling 8,106 tons.

  • SS Susan Maersk (2,355 GRT), sunk 12 June 1941.[1]
  • SS Ranella (5,590 GRT), sunk 12 June 1941.[2]
  • SS Ila (1,583 GRT), sunk October 1941.[3]
  • MV Silvercedar (4,354 GRT), sunk 15 October 1941.[4]
  • SS Bold Venture (3,222 GRT), sunk 17 October 1941.[5]
  • MV Diala (8,106 GRT), damaged 15 January 1942.[6]
  • SS Innerøy (8,260 GRT), sunk 22 January 1942.[7]
  • SS Leto (4,712 GRT), sunk 12 May 1942.[8]
  • SS Nicoya (5,364 GRT), sunk 12 May 1942.[9]
  • MV Mattawin (6,919 GRT), sunk 2 June 1942.[10]
  • SS Belgian Soldier (7,167 GRT), sunk 3 August 1942.[11]
  • MV Blankaholm (2,845 GRT), sunk 18 August 1942.[12]
  • MV Empire Bede (6,959 GRT), damaged 18 August 1942,[13] sunk by gunfire from HMS Pimpernel.[14]
  • SS John Hancock (7,176 GRT), sunk 18 August 1942.[15]
  • MV Charles L D (5,273 GRT), sunk 9 December 1942.[16]

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