|Ordered||23 Sep 1939|
|Laid down||28 Mar 1940||F. Krupp Germaniawerft AG, Kiel (werk 632)|
|Launched||4 Jan 1941|
|Commissioned||18 Feb 1941||Kptlt. Rolf Mützelburg (Oak Leaves)|
|Successes||21 ships sunk, total tonnage 94,270 GRT|
3 ships damaged, total tonnage 17,052 GRT
Sunk 25 April, 1943 south of Cape Farewell, Greenland, in position 55.05N, 42.25W, by depth charges from Swordfish aircraft off the British escort carrier HMS Biter (Sqdn 811/L) and by the British destroyer HMS Pathfinder. 10 dead and 38 survivors.
U-203 operated with the following Wolfpacks during its career:
Schlagetot (20 Oct 1941 - 1 Nov 1941)
Raubritter (1 Nov 1941 - 5 Nov 1941)
Seydlitz (27 Dec 1941 - 7 Jan 1942)
Ziethen (7 Jan 1942 - 22 Jan 1942)
Iltis (6 Sep 1942 - 10 Sep 1942)
Streitaxt (20 Oct 1942 - 30 Oct 1942)
Raufbold (11 Dec 1942 - 22 Dec 1942)
Spitz (22 Dec 1942 - 31 Dec 1942)
Lerche (10 Apr 1943 - 16 Apr 1943)
Meise (16 Apr 1943 - 22 Apr 1943)
Specht (23 Apr 1943 - 25 Apr 1943)
Attacks on this boat
28 Jul 1941
The boat was depth charged by British corvettes HMS Rhododendron and HMS Fleur de Lys but escaped without damage. (Sources: Blair, vol 1, page 329)
22 Oct 1941
An aircraft dropped two bombs on U-203 in the North Atlantic; the boat survived but suffered some damage.
11 Nov 1941
14.15 hours, Bay of Biscay, inbound: a British Hudson bomber (RAF Sqdn 53/D) dropped four depth charges as U-203 dived, damaging one engine and the aft hydroplanes. The boat nonetheless managed to reach Brest the next day. (Sources: Franks/Zimmerman)
4 recorded attacks on this boat.
Men lost from the boat
11 Sep 1942
The commander of U-203 (Kptlt. Rolf Mützelburg) died in a unique incident on 11 Sept. He allowed his crew to swim in the sea and when he was about to dive from the tower the boat moved and he hit the saddle tank being badly wounded. He died the next day.
Related: For more info on such losses see - Men lost from U-boats -