List of all U-boats

U-731

Type

VIIC

 
Ordered21 Nov 1940
Laid down1 Oct 1941 F Schichau GmbH, Danzig (werk 1522)
Launched25 Jul 1942
Commissioned3 Oct 1942Oblt. Werner Techand
Commanders
3 Oct 1942 - 30 Nov 1943   Werner Techand
1 Dec 1943 - 15 May 1944  Oblt. Graf Alexander von Keller
Career
4 patrols
3 Oct 1942-30 Apr 1943  8. Flottille (training)
1 May 1943-15 May 1944  1. Flottille (active service)
SuccessesNo ships sunk or damaged
Fate

Sunk 15 May 1944 in the mid-Atlantic near Tangier, in position 35.54N, 05.45W, by depth charges from the British patrol vessel HMS Kilmarnock and the British anti-submarine trawler HMS Blackfly and 2 US Catalina aircraft (VP-63/P-12/P-1). 54 dead (all hands lost).

Loss position

View the 4 war patrols

Wolfpack operations

U-731 operated with the following Wolfpacks during its career:
   Iller (12 May 1943 - 15 May 1943)
   Donau 1 (15 May 1943 - 26 May 1943)
   Leuthen (15 Sep 1943 - 24 Sep 1943)
   Rossbach (24 Sep 1943 - 9 Oct 1943)
   Rügen 7 (28 Dec 1943 - 2 Jan 1944)
   Rügen 6 (2 Jan 1944 - 7 Jan 1944)
   Rügen (7 Jan 1944 - 26 Jan 1944)
   Stürmer (26 Jan 1944 - 3 Feb 1944)
   Igel 2 (3 Feb 1944 - 16 Feb 1944)

Attacks on this boat and other events

19 May 1943
The target of the depth chage attack on 19 May 1943 SE of Cape Farewell, Greenland, in position 55.09N, 35.18W, by a British B-24 Liberator aircraft (Sqdn. 120/T), formerly credited with sinking U-954, was in fact U-731, which escaped unscathed. (Sources: 1991-10-01, FDS/NHB)

4 Oct 1943
A Hudson aircraft (Sqdn 269/S) attacked U-731 on 4 Oct. The commander and 5 more men were wounded and the boat was damaged. The boat did not have to abort its patrol.

12 Oct 1943
The boat was attacked by three Avenger aircraft from the USS Card. U-731 had undergone an attack by aircraft one week previously in which six men, including the commander, were wounded and the boat was damaged.

3 recorded attacks on this boat.

Men lost from the boat

4 Oct 1943
A Hudson aircraft (Sqdn 269/S) attacked U-731 on 4 Oct. The commander and 5 more men were wounded and the boat was damaged. The boat did not have to abort its patrol.

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

U-boat Emblems

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


Crew 37b

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