|Ordered||25 Aug 1941|
|Laid down||18 Nov 1942||Howaldtswerke AG, Kiel (werk 32)|
|Launched||8 Jan 1944|
|Commissioned||18 Mar 1944||Kptlt. Horst Creutz|
|Successes||No ships sunk or damaged|
Sunk after 14 December 1944 in the Celtic Sea north-west of Newquay, in position 50.33,16N, 05.11,37W, by a mine in the British field HW A3. 50 dead (all hands lost). (Axel Niestlé, July 2008).
The article The loss of U 325, U 400 and U 1021 by Dr. Axel Niestlé explains the loss of this boat.
Reassessment of this wreck
See the following PDF file for more details on further research into this wreck.
Niestlé, Axel (2010). The ‘Atlas’ Survey Zone: Deep-sea Archaeology & U-boat Loss Reassessments, Oddyssey Marine Exploration
Previously recorded fate
- Sunk during mid-December 1944 on the British minefield »HY A1« in position 50°39,9’n / 05°05’w off the Cornish coast. (Dr. Axel Niestlé, May 2007)
- Sunk 17 Dec 1944 in the North Atlantic south of Cork, in position 51.16N, 08.05W, by depth charges from the British frigate HMS Nyasaland.
(Dr. Axel Niestlé, 1998)
Notes. This attack sank the U-772 instead.
This boat was fitted with a Schnorchel underwater-breathing apparatus in October 1944.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-400 did not suffer any casualties (we know of) until the time of her loss.
We have 1 emblem entry for this boat. See the emblem page for this boat or view emblems individually below.
Stork on Shield