List of all U-boats

U-991

Type

VIIC

 
Ordered25 May 1941
Laid down30 Oct 1942 Blohm & Voss, Hamburg (werk 191)
Launched24 Jun 1943
Commissioned29 Jul 1943Oblt. Diethelm Balke
Commanders
29 Jul 1943 - 8 May 1945  Kptlt. Diethelm Balke
Career
1 patrol
29 Jul 1943-31 Aug 1944  5. Flottille (training)
1 Sep 1944-8 May 1945  11. Flottille (front boat)
SuccessesNo ships sunk or damaged
Fate

Surrendered on 9 May 1945 at Bergen, Norway (Waller & Niestlé, 2010).

Transferred from Bergen, Norway to Loch Ryan on 29 May 1945 for Operation Deadlight.

Operation Deadlight (post-war Allied operation, info)
Sunk on 11 Dec, 1945 in position 56.10N, 10.05W.

View the 1 war patrol

Schnorchel-fitted U-boat
This boat was fitted with a Schnorchel underwater-breathing apparatus in August 1944. Read more about the Schnorchel and see list of fitted boats.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-991 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 each one below.



Hitler's U-boat War

Blair, Clay


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Books dealing with this subject include

German U-Boat Losses During World War II. Niestle, Axel, 1998.
Hitler's U-boat War. Blair, Clay, 1996.
Hitler's U-boat War, Vol II. Blair, Clay, 1998.
U-Boat Operations of the Second World War - Vol 1. Wynn, Kenneth, 1998.
U-Boat Operations of the Second World War - Vol 2. Wynn, Kenneth, 1998.
With Blood & Iron. Reeman, Douglas, 1964. (transl.)