List of all U-boats




Ordered14 Oct 1941
Laid down15 Jan 1943 Blohm & Voss, Hamburg (werk 204)
Launched27 Oct 1943
Commissioned16 Dec 1943Oblt. Hartmuth Schimmelpfennig
16 Dec 1943 - Jan, 1945  Oblt. Hartmuth Schimmelpfennig
Jan, 1945 - 9 May 1945  Oblt. Rudolf Hinz (German Cross in Gold)
2 patrols
16 Dec 1943-31 Jul 1944  31. Flottille (training)
1 Aug 1944-31 Oct 1944  7. Flottille (active service)
1 Nov 1944-8 May 1945  11. Flottille (active service)
Successes1 ship sunk, total tonnage 1,313 GRT
1 warship sunk, total tonnage 980 tons

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

Transferred to Loch Ryan, Scotland on 2 June 1945.

Operation Deadlight (post-war Allied operation, info)
Sunk on 1 December, 1945 at 56.10N x 10.05W by naval gunfire.

Final location

Blue marker shows final fate during Operation Deadlight. Orange marker shows German surrender.

See the 2 ships hit by U-1004 - View the 2 war patrols

Attacks on this boat and other events

23 Oct 1944
09.18 hrs, inbound: U-1004 was attacked by aircraft off Bergen. No damage.

1 recorded attack on this boat.

Schnorchel-fitted U-boat
This boat was fitted with a Schnorchel underwater-breathing apparatus in June 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-1004 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.


Horse on Globe

Media links

U-Boat Attack Logs

Daniel Morgan and Bruce Taylor
(EUR 44.43)

The Grey Wolves of Eriboll

David M. Hird

German U-Boat Losses During World War II

Niestle, Axel

The Royal Navy and German Naval Disarmament, 1942-1947

Madsen, Chris
($ 65.95)
(£ 39.99)
(EUR 51.99)

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

Wynn, Kenneth

Hitler's U-boat War, Vol II

Blair, Clay
(EUR 61.37)