Patrol info for U-634
| Departure | Arrival / Fate | Duration | ||
| 15 Apr 1943 | Lorient | 23 May 1943 | Brest | 39 days |
Commander | Officers * |
 Oblt. Eberhard Dahlhaus |
Daily positions, sinkings and allied attacks during the patrol of U-634
Legend
indicates an Allied attack on the boat.
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We have daily positions for all 39 days on this patrol.
Departure from Lorient on 15 Apr 1943.
16 Apr 1943 - 17 Apr 1943 - 18 Apr 1943 - 19 Apr 1943 - 20 Apr 1943 - 21 Apr 1943 - 22 Apr 1943 - 23 Apr 1943 - 24 Apr 1943 - 25 Apr 1943 - 26 Apr 1943 - 27 Apr 1943 - 28 Apr 1943 - 29 Apr 1943 - 30 Apr 1943 - 1 May 1943 - 2 May 1943 - 3 May 1943 - 4 May 1943 - 5 May 1943 - 6 May 1943 - 7 May 1943 - 8 May 1943 - 9 May 1943 - 10 May 1943 - 11 May 1943 - 12 May 1943 - 13 May 1943 - 14 May 1943 - 15 May 1943 - 16 May 1943 - 17 May 1943 - 18 May 1943 - 19 May 1943 - 20 May 1943 - 21 May 1943 - 22 May 1943 -
Arrival at Brest on 23 May 1943.
Wolfpack operations during this patrol
U-634 operated with the following Wolfpacks during this patrol
Amsel (22 Apr 1943 - 3 May 1943)
Amsel 2 (3 May 1943 - 6 May 1943)
Elbe (7 May 1943 - 10 May 1943)
Elbe 1 (10 May 1943 - 14 May 1943)
Ships hit by U-634 during this patrol
No entries found.
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-634 during this patrol
18 Apr 1943
At 09.10 hours, the outbound boat was attacked by the Australian Sunderland Mk.III DV969 (10 Sqdn RAAF/E, pilot F/O E.H. Farmer) in the Bay of Biscay. Two 250lb GP bombs were dropped in a first attack, but missed 30 metres astern. U-634 also fought off a second attack (six depth charges) with AA fire before crash-diving, only sustaining minor damage to the conning tower by strafing. The Sunderland had been hit in the nose and the starboard wing with two of 12 crewmen wounded by shell splinters. (Sources: Franks/Zimmerman)
About this data
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See all patrols for U-634
* These are officers that later became commanders themselves.
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