List of all U-boats




Ordered15 Aug 1940
Laid down31 Mar 1941 Howaldtswerke Hamburg AG, Hamburg (werk 812)
Launched26 Mar 1942
Commissioned14 May 1942Kptlt. Heinrich Schmid
14 May 1942 - 8 May 1943  KrvKpt. Heinrich Schmid
3 patrols
14 May 1942-30 Sep 1942  5. Flottille (training)
1 Oct 1942-31 Oct 1942  11. Flottille (active service)
1 Nov 1942-8 May 1943  9. Flottille (active service)
Successes2 ships sunk, total tonnage 10,924 GRT

Sunk 8 May 1943 in the Bay of Biscay west of Brest, in position 46.50N, 10.00W, after being damaged by depth charges from an Australian Sunderland aircraft (RAAF Sqdn. 10/W) during an attack on 7 May. 49 dead (all hands lost). (Axel Niestlé, November 1989).

Loss position

See the 2 ships hit by U-663 - View the 3 war patrols

The boat reported in after the attack but was never heard from again. She must have suffered major hull failures during the attack and sunk as a result of those.

Previously recorded fate

  • Sunk by the British Halifax aircraft (RAF 58/S) on 7 May 1943 in position 46.33N, 11.12W. (Postwar assessment)
    Notes. This attack was in fact against the U-214 causing minor damages.

Wolfpack operations

U-663 operated with the following Wolfpacks during its career:
   Drachen (22 Nov 1942 - 3 Dec 1942)
   Panzer (3 Dec 1942 - 9 Dec 1942)
   Büffel (9 Dec 1942 - 14 Dec 1942)
   Seeteufel (21 Mar 1943 - 30 Mar 1943)

Attacks on this boat and other events

7 May 1943
The target of the depth charge attack on 7 May 1943 in the Bay of Biscay west of St. Nazaire, France in position 47.06N, 10.58W by Australian Sunderland flying boat W/William of 10 Sqdn RAAF, often credited with sinking U-465, was actually U-663, which escaped with severe damage. (Sources: 1989-11-01, Axel Niestle)

1 recorded attack on this boat.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-663 did not suffer any casualties (we know of) until the time of her loss.

U-boat Emblems

We have 1 emblem entry for this boat. See the emblem page for this boat or view emblems individually below.

Clover and 13

Media links

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

Wynn, Kenneth

German U-Boat Losses During World War II

Niestle, Axel

Hitler's U-boat War, Vol II

Blair, Clay

Hitler's U-boat War

Blair, Clay