|Ordered||9 Oct 1939|
|Laid down||11 Jan 1940||Kriegsmarinewerft (KMW), Wilhelmshaven (werk 138)|
|Launched||23 Aug 1941|
|Commissioned||3 Nov 1941||Oblt. Walter Göing|
|Successes||1 ship sunk, total tonnage 928 GRT|
2 auxiliary warships sunk, total tonnage 2,974 GRT
Sunk 28 May, 1943 in the Mediterranean north-west of Mallorca, in position 39.58N, 01.41E, by rockets from a British Hudson aircraft (608 Sqn RAF/M). 40 dead and 9 survivors.
The nine survivors from U-755 were saved by the Spanish destroyer Velasco.
U-755 operated with the following Wolfpacks during its career:
Lohs (11 Aug 1942 - 22 Sep 1942)
Blitz (22 Sep 1942 - 26 Sep 1942)
Tiger (26 Sep 1942 - 30 Sep 1942)
Luchs (1 Oct 1942 - 2 Oct 1942)
Delphin (4 Nov 1942 - 14 Nov 1942)
Attacks on this boat
24 Aug 1942
At 21.55 hrs, HNoMS Potentilla sighted two U-boats on the surface near convoy ONS-122 and began to chase them northwards. They were U-174 and U-755, and the latter was fired on from the 4in gun at a range of about 12 miles, but the shots fell short. Both U-boats managed to escape under cover of darkness within two hours, proceeding at full speed while surfaced. (Sources: ADM reports, KTB U-755)
24 Sep 1942
This was a difficult day for U-755. At 05.49 hrs she was fired on by a convoy escort; two hours later she missed convoy SC-100 with a spread four torpedoes. She was attacked from the air at 16.15, and again by an escort at 17.00, and that time damaged so heavily she was forced to return to base.
21 May 1943
The British submarine HMS Sickle fired five torpedoes at U-755, but they all missed.
26 May 1943
06.26 hrs, 13 miles north of Alboran Island in the Mediterranean: the boat was attacked by a British Hudson bomber (500 Sqdn RAF, pilot S/L H.G. Holmes, DFC). Three depth charges were dropped from the aircraft during the first attack run, despite being hit in the port engine by flak, and followed up with two dive-bombing attacks, dropping first two and then one A/S bomb, one of which exploded only five yards off the port beam. The engine damage then forced the aircraft to return to base. One crewman was killed and two wounded by strafing, and U-755 was also forced to return to base due to heavy damage. She was sunk in another air attack 2 days later. (Sources: Franks/Zimmerman)
4 recorded attacks on this boat.
Men lost from the boat
26 May 1943
During an air attack by a Hudson aircraft (RAF Sqdn 500) in the Mediterranean one man was killed and two men wounded. The boat was forced to return to port due to heavy damages but was sunk 2 days later.
Related: For more info on such losses see - Men lost from U-boats -