|Ordered||5 Jun 1941|
|Laid down||21 Oct 1942||AG Weser, Bremen (werk 1061)|
|Launched||17 Apr 1943|
|Commissioned||2 Aug 1943||Kptlt. Albert Sürenhagen|
|Successes||No ships sunk or damaged|
Missing since 11 September 1944 in the North Atlantic south of Iceland, in approx. position 59.30N, 26.00W. 56 dead (all hands lost). (FDS/NHB, September 1987).
U-855 sent its last radio message on 11 September 1944 from approx. position 59.30N, 26.00W while returning to Kristiansand from a weather reporting patrol. The boat was posted as missing on 15 October 1944 after failing to arrive in port. It is possible that it was lost to a mine in the British barrages between Iceland and the Faroe Islands on or about 17 September 1944.
Previously recorded fate
- Sunk by a British Liberator (RAF 224/A) on 24 Sept 1944 in position 61.00N, 04.07E. (Postwar assessment)
Notes. This attack was instead against the U-763 inflicting medium damage.
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in July 1944 but it was of course installed prior to that date.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-855 did not suffer any casualties (we know of) until the time of her loss.