Patrol info for U-23
| Departure | Arrival / Fate | Duration | ||
| 17 May 1944 | Konstanza | 7 Jun 1944 | Konstanza | 22 days |
Commander | Officers * |
 Kptlt. Rolf-Birger Wahlen |
Patrol in the Black Sea between Bichvinta and Sokhumi.
Daily positions, sinkings and allied attacks during the patrol of U-23
We have 6 daily positions for the 22 days U-23 was at sea.
Departure from Konstanza on 17 May 1944.
18 May 1944 - 19 May 1944 - 20 May 1944 - 21 May 1944 - 22 May 1944 - 23 May 1944 - 24 May 1944 - 25 May 1944 - 26 May 1944 - 27 May 1944 - 28 May 1944 - 29 May 1944 - 30 May 1944 - 31 May 1944 - 1 Jun 1944 - 2 Jun 1944 - 3 Jun 1944 - 4 Jun 1944 - 5 Jun 1944 - 6 Jun 1944 -
Arrival at Konstanza on 7 Jun 1944.
Ships hit by U-23 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | Map | ||
|---|---|---|---|---|---|---|---|---|---|
| 29 May 1944 | U-23 | Rolf-Birger Wahlen | Smelyj | 71 |  | sj | A | ||
| 71 | |||||||||
1 ship sunk (71 tons). | |||||||||
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-23 during this patrol
We have no recorded attacks on U-23 duing this patrol.
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See all patrols for U-23
* These are officers that later became commanders themselves.