|Ordered||26 Oct 1939|
|Laid down||4 May 1940||Flensburger Schiffsbau-Ges, Flensburg (werk 474)|
|Launched||5 Jul 1941|
|Commissioned||29 Oct 1941||Kptlt. Günter La Baume|
|Successes||1 ship sunk, total tonnage 5,082 GRT|
Listed as missing in the Arctic Sea on April 4, 1944.
There is no explanation for its loss. 52 dead (all hands lost). (Axel Niestlé, January 1997).
U-355 reported for the last time on 1 April, 1944 from approximate position 73.03N, 13.10E while in pursuit of convoy JW.58.
Previously recorded fate
- Sunk 1 April, 1944 in the Barents Sea southwest of Bear Island, Norway, in position 73.07N, 10.21E, by depth charges from an Avenger aircraft (Sqdn. 846/H) from the
British escort carrier HMS Tracker and the British destroyer HMS Beagle. (Postwar assessment)
Notes. This attack was in fact against the U-673 inflicting medium damage.
U-355 operated with the following Wolfpacks during its career:
Eisteufel (21 Jun 1942 - 9 Jul 1942)
Nebelkönig (27 Jul 1942 - 14 Aug 1942)
Eisbär (27 Mar 1943 - 15 Apr 1943)
Monsun (19 Oct 1943 - 21 Oct 1943)
Blitz (26 Mar 1944 - 4 Apr 1944)
Attacks on this boat
1 Apr 1944
The boat was attacked by an Avenger aircraft with rockets and suffered some damage.
1 recorded attack on this boat.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-355 did not suffer any casualties (we know of) until the time of her loss.