|Ordered||14 Oct 1941|
|Laid down||29 Jun 1943||Nordseewerke, Emden (werk 226)|
|Launched||7 Dec 1943|
|Commissioned||15 Mar 1944||Oblt. Rüdiger Perleberg|
|Successes||No ships sunk or damaged|
Surrendered on 9 May 1945 at Bergen, Norway (Waller & Niestlé, 2010).
Transferred from Bergen, Norway to Loch Ryan, Scotland on 30 May, 1945 for Operation Deadlight.
Operation Deadlight (post-war Allied operation, info)
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in January 1945 but it was of course installed prior to that date. 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-1104 did not suffer any casualties (we know of) until the time of her loss.