|Ordered||16 Jul 1942|
|Laid down||7 Jun 1943||Danziger Werft AG, Danzig (werk 144)|
|Launched||3 Dec 1943|
|Commissioned||20 Apr 1944||Oblt. Jürgen Kuhlmann|
|Successes||1 ship sunk, total tonnage 1,599 GRT|
1 ship damaged, total tonnage 7,429 GRT
1 warship a total loss, total tonnage 11,400 tons
Previously recorded fate
- Sunk 26 Jan, 1945 in the Irish Sea south of the Isle of Man, in position 53. 39N, 05. 23W, by ramming and depth charges from the British frigates HMS Aylmer, Calder, Bentinck and Manners. (Postwar assessment)
Notes. This attack was actually responsible for sinking the U-1051.
General notes on this boat
On 15 Jan, 1945 the boat claimed two torpedo attacks. They are believed to have been against the British escort carrier HMS Thane and the Norwegian tanker Spinanger which were both hit by torpedoes and damaged.
These ships were previously believed to have been hit by the U-482 but that boat was almost certainly lost in early December, 1944.
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in December 1944 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-1172 did not suffer any casualties (we know of) until the time of her loss.