List of all U-boats




Ordered15 Aug 1940
Laid down21 Apr 1941 Blohm & Voss, Hamburg (werk 588)
Launched9 Jan 1942
Commissioned5 Mar 1942Oblt. Paul Siegmann
5 Mar 1942 - 6 Aug 1942  Kptlt. Paul Siegmann (German Cross in Gold)
6 Aug 1942 - 30 May 1943   (boat was vacant)
31 May 1943 - 20 Feb 1944  Oblt. Theodor Petersen (German Cross in Gold)
21 Feb 1944 - 2 May 1945  Oblt. Hans-Peter Dick
No patrols
5 Mar 1942-6 Aug 1942  5. Flottille (training)
31 May 1943-28 Feb 1945  24. Flottille (training)
1 Mar 1945-2 May 1945  31. Flottille (training)
SuccessesNo ships sunk or damaged

Sank on 6 August 1942 in the Baltic Sea north-east of Leba, in position 55.03N, 18.05E, after a collision with U-444. 2 dead and 43 survivors.

Raised on 18 August 1942, repaired at the Holmwerft in Danzig and returned to service on 31 May 1943 as a training boat.

Scuttled on 1 May 1945 in the U-boat base at Warnemünde, in position 54.10,3N, 12.05,7E. Wreck raised in July 1945 and broken up.

Final location

Men lost from the boat

6 Aug 1942
During working up exercises in the Baltic U-612 sank after colliding with U-444. Two men from U-612 died. The boat was later raised and used for training. [Obermaschinist Wilhelm Merz, Maschinenobergefreiter Gerhard Ehrlich] (The I WO, Herbert A. Werner, described this event in his book Iron Coffins)

  Related: For more info on such losses see - Men lost from U-boats -

Media links

Another Place, Another Time

Hirschmann, Werner

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

Wynn, Kenneth

German U-Boat Losses During World War II

Niestle, Axel