Patrol info for U-23
| Departure | Arrival / Fate | Duration | ||
| 10 Oct 1943 | Konstanza | 11 Nov 1943 | Konstanza | 33 days |
Commander | Officers * |
 Kptlt. Rolf-Birger Wahlen |
Patrol in the Black Sea between Batumi, Sokhumi and Sochi. The boat entered Feodosia to resupply on 31 October.
Daily positions, sinkings and allied attacks during the patrol of U-23
We have 32 daily positions for the 33 days U-23 was at sea.
Departure from Konstanza on 10 Oct 1943.
11 Oct 1943 - 12 Oct 1943 - 13 Oct 1943 - 14 Oct 1943 - 15 Oct 1943 - 16 Oct 1943 - 17 Oct 1943 - 18 Oct 1943 - 19 Oct 1943 - 20 Oct 1943 - 21 Oct 1943 - 22 Oct 1943 - 23 Oct 1943 - 24 Oct 1943 - 25 Oct 1943 - 26 Oct 1943 - 27 Oct 1943 - 28 Oct 1943 - 29 Oct 1943 - 30 Oct 1943 - 31 Oct 1943 - 1 Nov 1943 - 2 Nov 1943 - 3 Nov 1943 - 4 Nov 1943 - 5 Nov 1943 - 6 Nov 1943 - 7 Nov 1943 - 8 Nov 1943 - 9 Nov 1943 - 10 Nov 1943 -
Arrival at Konstanza on 11 Nov 1943.
Ships hit by U-23 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | Map | ||
|---|---|---|---|---|---|---|---|---|---|
| 15 Oct 1943 | U-23 | Rolf-Birger Wahlen | TSC-486 Sovetskaja Rossija (d.) | 1,005 |  | sj | A | ||
| 23 Oct 1943 | U-23 | Rolf-Birger Wahlen | Tanais | 372 | | sj | B | ||
| 1,377 | |||||||||
1 ship sunk (372 tons) and 1 ship damaged (1,005 tons). Legend | |||||||||
General Events during this patrol
1943
25 Oct 1943. In the Black Sea, U-23 took three crew from a fishing boat prisoner and then sank their boat with hand grenades.
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Attacks on U-23 during this patrol
We have no recorded attacks on U-23 duing this patrol.
If you believe we have omitted an attack on U-23 please let us know.
See all patrols for U-23
* These are officers that later became commanders themselves.