|Ordered||23 Dec 1939|
|Laid down||11 Dec 1940||AG Weser, Bremen (werk 1012)|
|Launched||31 Jul 1941|
|Commissioned||5 Nov 1941||Kptlt. Carl Emmermann (Oak Leaves)|
|Successes||26 ships sunk, total tonnage 152,080 GRT|
Sunk 13 December, 1943 in the mid-Atlantic after a 27 hour fight west of the Canary Islands, in position 26.29N, 29.58W, by depth charges and Fido homing torpedoes from Avenger and Wildcat aircraft (VC-19) of the American escort carrier USS Bogue and by some 200 depth charges from the US destroyers USS George E. Badger, USS Clemson, USS Osmond Ingram and USS Du Pont. 13 dead and 46 survivors.
Attacks on this boat
8 Oct 1942
The boat was depth charged by the British corvette HMS Rock Rose but suffered only slight damage.
10 Oct 1942
At 13.01 hours, the boat was at periscope depth just after sinking the Orcades when an aircraft dropped three depth charges. No damage was caused, but U-172 had to leave the area submerged without questioning the survivors.
28 Mar 1943
In an attack by Wolfpack Seeräuber (Pirate) on the small convoy RS-3, three ships were sunk and 3 U-boats (of 8) seriously damaged, one of which was U-172. (Sources: Blair, vol 2, page 204)
7 Apr 1943
The boat was attacked by two B-24 Liberator bombers (USAAF Sqdn 1) which dropped 12 depth charges. U-172 stayed on the surface and fought it out without being damaged. (Sources: Blair, vol 2, page 204)
11 Aug 1943
An unidentified aircraft attacked U-172 while the boat was rescuing the crew of U-604 following her scuttling. 1 man from U-172 was killed. [Maschinenobergefreiter Fritz Schiemann]
5 recorded attacks on this boat.
Men lost from the boat
11 Aug 1943
While rescuing men from the just-scuttled U-604 the U-172 was attacked by an aircraft and 1 man from its crew was killed. [Maschinenobergefreiter Fritz Schiemann]
Related: For more info on such losses see - Men lost from U-boats -