List of all U-boats




Ordered20 Jan 1941
Laid down1 Dec 1941 Blohm & Voss, Hamburg (werk 619)
Launched20 Aug 1942
Commissioned8 Oct 1942Oblt. Hans-Harald Speidel
8 Oct 1942 - 8 Oct 1943  Kptlt. Hans-Harald Speidel
1 patrol
8 Oct 1942-30 Jun 1943  5. Flottille (training)
1 Jul 1943-8 Oct 1943  1. Flottille (active service)
SuccessesNo ships sunk or damaged

Sunk on 8 October 1943 in the North Atlantic south-west of Iceland, in position 56.14N, 26.55W, by depth charges from two British Liberator aircraft (120 Sqn RAF/T & 86 Sqn RAF/Z). 30 dead and 18 survivors.

Loss position

View the 1 war patrol

Wolfpack operations

U-643 operated with the following Wolfpacks during its career:
   Rossbach (24 Sep 1943 - 8 Oct 1943)

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-643 did not suffer any casualties (we know of) until the time of her loss.

U-boat Emblems

We have 2 emblem entries for this boat. See the emblem page for this boat or view emblems individually below.

The Olympic Rings - Crew 36

U-boat Commander

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