List of all U-boats




Ordered15 Aug 1940
Laid down22 Sep 1941 Blohm & Voss, Hamburg (werk 609)
Launched10 Jun 1942
Commissioned30 Jul 1942Oblt. Bernhard Müller
30 Jul 1942 - 10 Mar 1943  Oblt. Bernhard Müller
1 patrol
30 Jul 1942-28 Feb 1943  5. Flottille (training)
1 Mar 1943-10 Mar 1943  9. Flottille (active service)
Successes1 ship sunk, total tonnage 3,921 GRT

Left Kiel, Germany on 20 Feb 1943.
Last radio message received on 3 March 1943.

Sunk 10 March 1943 in the North Atlantic, in position 58.51N, 19.55W, by ramming from the British merchant SS Scorton. 43 dead (all hands lost). (FDS/NHB, December 1996).

Loss position

See the 1 ships hit by U-633 - View the 1 war patrol

Previously recorded fate

  • Sunk 7 March, 1943 in the North Atlantic, in position 57.14N, 26.30W, by depth charges from a British Fortress aircraft (Sqdn. 220/J). (Postwar assessment)
    Notes. This attack was actually against U-641 inflicting no damage.

Wolfpack operations

U-633 operated with the following Wolfpacks during its career:
   Neuland (4 Mar 1943 - 6 Mar 1943)
   Ostmark (6 Mar 1943 - 10 Mar 1943)

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-633 did not suffer any casualties (we know of) until the time of her loss.

Media links

U-Boat Operations of the Second World War - Vol 2

Wynn, Kenneth

Hitler's U-boat War, Vol II

Blair, Clay

German U-Boat Losses During World War II

Niestle, Axel