|Ordered||14 Oct 1941|
|Laid down||26 May 1943||Nordseewerke, Emden (werk 225)|
|Launched||12 Oct 1943|
|Commissioned||8 Jan 1944||Kptlt. Hans Bungards|
|Successes||No ships sunk or damaged|
Operation Deadlight (post-war Allied operation, info)
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-1103 did not suffer any casualties (we know of) until the time of her loss.