U-631

Type

VIIC

Ordered

15 Aug, 1940

Laid down

5 Sep, 1941

Blohm & Voss, Hamburg (werk 607)

Launched

27 May, 1942

Commissioned

16 Jul, 1942

Oblt. Jürgen Krüger

Commanders

16 Jul, 1942 - 17 Oct, 1943

Oblt. Jürgen Krüger

Career

3 patrols

16 Jul, 1942 - 31 Dec, 1942 5. Flottille (training)
1 Jan, 1943 - 17 Oct, 1943 9. Flottille (front boat)

Successes

2 ships sunk for a total of 9.136 GRT

Fate

Sunk 17 Oct, 1943 in the North Atlantic south-east of Cape Farewell, Greenland, in position 58.13N, 32.29W, by depth charges from the British corvette HMS Sunflower. 54 dead (all hands lost).

See the 2 ships hit by U-631 - View the 3 war patrols

Wolfpack operations

U-631 operated with the following Wolfpacks during its career:
   Falke (31 Dec, 1942 - 22 Jan, 1943)
   Landknecht (22 Jan, 1943 - 28 Jan, 1943)
   Sturmer (14 Mar, 1943 - 20 Mar, 1943)
   Seewolf (25 Mar, 1943 - 30 Mar, 1943)
   Meise (20 Apr, 1943 - 27 Apr, 1943)

Attacks on this boat

20 Mar, 1943
The attack by Sunderland aircraft (RAF Sqdn 201/T) on 20 March, 1943 in position 54.18N, 26.15W believed to have sunk the U-384 was in fact against U-631 but causing no damage to that boat. (Sources: 1975-06-01, FDS/NHB)

1 recorded attacks 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-631 did not suffer any casualties (we know of) until the time of her loss.