|Ordered||20 Jan 1941|
|Laid down||12 Feb 1942||Flensburger Schiffsbau-Ges, Flensburg (werk 483)|
|Launched||21 Jan 1943|
|Commissioned||3 May 1943||Oblt. Paul-Heinrich Sass|
|Successes||No ships sunk or damaged|
Sunk on 29 Jan 1944 by depth charges from a British Halifax aircraft (Squadron U/502) in the Bay of Biscay in position 45.33N, 05.55W. 49 dead (all hands lost). (Axel Niestlé, September 2003).
Previously recorded fate
- Listed as missing in the Bay of Biscay as of January 31, 1944. No explanation exists for its loss. (Dr. Axel Niestlé, 1998)
- Sunk 30 Jan, 1944 in the Bay of Biscay west of Bordeaux, France, in position 45.25N, 05.15W, by depth charges from a British Wellington aircraft (Sqdn. 172/K). (Postwar assessment)
Notes. This attack was in fact against U-608 inflicting no damages. The boat shot down the aircraft before it dropped its charges.
U-364 operated with the following Wolfpacks during its career:
Coronel 1 (14 Dec 1943 - 17 Dec 1943)
Sylt (18 Dec 1943 - 23 Dec 1943)
Rügen 1 (23 Dec 1943 - 28 Dec 1943)
Rügen 2 (28 Dec 1943 - 7 Jan 1944)
Rügen (7 Jan 1944 - 14 Jan 1944)
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-364 did not suffer any casualties (we know of) until the time of her loss.