Patrol info for U-309
| Departure | Arrival / Fate | Duration | ||
| 12 Jul 1944 | Brest | 3 Aug 1944 | Brest | 23 days |
Commander | Officers * |
 Oblt. Hans-Gert Mahrholz |
Daily positions, sinkings and allied attacks during the patrol of U-309
Legend
means a ship hit (sunk or damaged).
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We have 22 daily positions for the 23 days U-309 was at sea.
Departure from Brest on 12 Jul 1944.
13 Jul 1944 - 14 Jul 1944 - 15 Jul 1944 - 16 Jul 1944 - 17 Jul 1944 - 18 Jul 1944 - 19 Jul 1944 - 20 Jul 1944 - 21 Jul 1944 - 22 Jul 1944 - 23 Jul 1944 - 24 Jul 1944 - 25 Jul 1944 - 26 Jul 1944 - 27 Jul 1944 - 28 Jul 1944 - 29 Jul 1944 - 30 Jul 1944 - 31 Jul 1944 - 1 Aug 1944 - 2 Aug 1944 -
Arrival at Brest on 3 Aug 1944.
Ships hit by U-309 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
|---|---|---|---|---|---|---|---|---|
| 24 Jul 1944 | U-309 | Hans-Gert Mahrholz | Samneva (t.) | 7,219 |  | br | FTM-47 | |
| 7,219 | ||||||||
1 ship sunk (7,219 tons). Legend | ||||||||
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-309 during this patrol
We have no recorded attacks on U-309 during this patrol.
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See all patrols for U-309
* These are officers that later became commanders themselves.
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