List of all U-boats




Ordered14 Oct 1941
Laid down15 Mar 1943 Deutsche Werft AG, Hamburg (werk 393)
Launched8 Nov 1943
Commissioned26 Jan 1944Kptlt. Hans Hilbig
26 Jan 1944 - 5 May 1945  Kptlt. Hans Hilbig
1 patrol
26 Jan 1944-31 Jul 1944  31. Flottille (training)
1 Aug 1944-30 Sep 1944  10. Flottille (active service)
1 Oct 1944-5 May 1945  33. Flottille (active service)
Successes1 ship sunk, total tonnage 5,458 GRT

Surrendered on 5 May 1945 at Heligoland, Germany (Waller & Niestlé, 2010).

Transferred from Wilhelmshaven to Loch Ryan, Scotland on 24 June 1945 for Operation Deadlight.

Operation Deadlight (post-war Allied operation, info)
Sunk on 17 Dec, 1945 in position 55.50N, 10.05W, by gunfire from the British frigate HMS Cubitt.

Final location

See the 1 ships hit by U-1230 - View the 1 war patrol

General notes on this boat

29 Nov 1944. German agents landed in America
The boat departed on her only war patrol from Horten, Norway on 8 Oct. 1944. 51 days layer on 29 Nov. the boat landed two German agents at Hancock Point in the Gulf of Maine, USA.

She then resumed her patrol and sank the Canadian steamer Cornwallis (5,458 tons) on 3 Dec. She docked at Kristiansand, Norway on 13 Feb. 1945.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-1230 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 emblems individually below.

The Olympic Rings - Crew 36

Media links

The Grey Wolves of Eriboll

David M. Hird

U-Boats at War

Showell, Jak P. Mallmann
($ 35.50)

The Royal Navy and German Naval Disarmament, 1942-1947

Madsen, Chris
($ 58.77)

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

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