Patrol info for U-311
| Departure | Arrival / Fate | Duration | ||
| 7 Mar 1944 | Brest | 22 Apr 1944 | Lost | 47 days |
Commander | Officers * |
 Kptlt. Joachim Zander |
Daily positions, sinkings and allied attacks during the patrol of U-311
Legend
means a ship hit (sunk or damaged).
indicates an Allied attack on the boat.
shows the loss of the U-boat.
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We have 45 daily positions for the 47 days U-311 was at sea.
Departure from Brest on 7 Mar 1944.
8 Mar 1944 - 9 Mar 1944 - 10 Mar 1944 - 11 Mar 1944 - 12 Mar 1944 - 13 Mar 1944 - 14 Mar 1944 - 15 Mar 1944 - 16 Mar 1944 - 17 Mar 1944 - 18 Mar 1944 - 19 Mar 1944 - 20 Mar 1944 - 21 Mar 1944 - 22 Mar 1944 - 23 Mar 1944 - 24 Mar 1944 - 25 Mar 1944 - 26 Mar 1944 - 27 Mar 1944 - 28 Mar 1944 - 29 Mar 1944 - 30 Mar 1944 - 31 Mar 1944 - 1 Apr 1944 - 2 Apr 1944 - 3 Apr 1944 - 4 Apr 1944 - 5 Apr 1944 - 6 Apr 1944 - 7 Apr 1944 - 8 Apr 1944 - 9 Apr 1944 - 10 Apr 1944 - 11 Apr 1944 - 12 Apr 1944 - 13 Apr 1944 - 14 Apr 1944 - 15 Apr 1944 - 16 Apr 1944 - 17 Apr 1944 - 18 Apr 1944 - 19 Apr 1944 - 20 Apr 1944 - 21 Apr 1944 -
Sunk on 22 Apr 1944.
Wolfpack operations during this patrol
U-311 operated with the following Wolfpacks during this patrol
Preussen (19 Mar 1944 - 22 Mar 1944)
Ships hit by U-311 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
|---|---|---|---|---|---|---|---|---|
| 19 Mar 1944 | U-311 | Joachim Zander |  | Seakay | 10,342 |  | am | CU-17 |
| 10,342 | ||||||||
1 ship sunk (10,342 tons). Legend | ||||||||
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-311 during this patrol
12 Mar 1944
Aircraft attack, aircraft shot down:
British Halifax HX225 (58 Sqdn RAF/L)
At 01.20 hours, the outbound boat shot down the Halifax (misidentified as Fortress) in the Bay of Biscay after being strafed and attacked with depth charges. All eight crewmen were lost.
(Sources: Franks/Zimmerman)16 Mar 1944
While attacking big tanker convoy CU 17 the boat was hunted for hours by its surface escorts but managed to penetrate its defences and destroy the large tanker Seakay. The boat managed to elude the escorts and get away. (Sources: Blair, vol 2, page 506)
About this data
If you believe we have missed an attack on a German U-boat in this listing please let us know.
See all patrols for U-311
* These are officers that later became commanders themselves.
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