Type | VIIC | |||||||||
| Ordered | 9 Oct 1939 | |||||||||
| Laid down | 11 Oct 1940 | H C Stülcken Sohn, Hamburg (werk 764) | ||||||||
| Launched | 13 Oct 1941 | |||||||||
| Commissioned | 30 Dec 1941 | Oblt. Karl-Horst Horn | ||||||||
| Commanders |
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| Career 1 patrol |
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| Successes | 1 ship sunk, total tonnage 3,279 GRT | |||||||||
| Fate | Sunk 3 Sept, 1942 in the Bay of Biscay west of Brest, France, in position 46.42N, 11.07W, by depth charges from a British Whitley aircraft (Sqdn. 77/P). 45 dead (all hands lost). (FDS/NHB, November 1987). | |||||||||
Previously recorded fate
- Sunk by British Whitley aircraft (RAF 77/V) on 3 Sept, 1942 in position 47.55N, 10.04W. (Postwar assessment)
Notes. This attack, long believed to have sunk U-705 was in fact aimed at the U-660 but caused no damages to that boat.
Wolfpack operations
U-705 operated with the following Wolfpacks during its career:
Lohs (11 Aug 1942 - 26 Aug 1942)
Attacks on this boat
24 Aug 1942
After reporting the convoy ONS-122 in the late evening on 23 August, the boat was located by HF/DF and hunted by HNoMS Potentilla and HMS Viscount. At 00.15 hours on 24 August, the corvette first got a radar contact on U-705 and forced her to dive by AA gunfire after illuminating the area with star shells. She then dropped four depth charges, followed by five from HMS Viscount and another two attacks by HNoMS Potentilla with ten. During these attack both escorts located the nearby U-135 with radar and forced her to dive in the same area. Both U-boats were then attacked with 57 depth charges in the next two hours, the final attack being made by HMS Viscount with a new weapon, the Hedgehog. U-705 was damaged in the action with her stern tube out of action. (Sources: ADM reports, KTB U-705)
25 Aug 1942
At 05.24 hours, HMS Viscount sighted a surfaced U-boat in fog behind the convoy ONS-122, observed it to dive at once and then attacked twice with five depth charges until contact was lost at 05.53 hours. The destroyer carried out a box search and obtained a radar contact at 06.09 hours, sighting a U-boat two minutes later and assumed that it was the same as she had attacked earlier. In fact, the second was U-176 while the first probably was U-705. (Sources: ADM reports)
2 recorded attacks 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-705 did not suffer any casualties (we know of) until the time of her loss.
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