|Ordered||2 Apr 1942|
|Laid down||20 Oct 1943||Nordseewerke, Emden (werk 231)|
|Launched||19 Jun 1944|
|Commissioned||31 Aug 1944||Oblt. Hans Julius Hoß|
|Successes||No ships sunk or damaged|
Surrendered on 12 May 1945 at Loch Eriboll, Scotland (Waller & Niestlé, 2010).
Transferred to Lisahally on 31 May 1945.
Operation Deadlight (post-war Allied operation, info)
General notes on this boat
2 Apr 1945. On 2 April, 1945 U-1109 had to return to base due to technical problems.
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in March 1945 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-1109 did not suffer any casualties (we know of) until the time of her loss.