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
Legend
means a ship hit (sunk or damaged).
The route is shown in a red line. You may have to zoom out to see all data.
In some cases missing data may make the route appear go overland which U-boats of course never did on patrols.
Left click to zoom-in and right-click to zoom out.
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 | ||
|---|---|---|---|---|---|---|---|---|
| 29 May 1944 | U-23 | Rolf-Birger Wahlen | Smelyj | 71 |  | sj | ||
| 71 | ||||||||
1 ship sunk (71 tons). | ||||||||
General Events during this patrol
We have no events listed for this patrol.
Add more events! If you know of an interesting event either missing from this date or an upcoming event that you'd like to share please contact us. We continuously update these databases.
Attacks on U-23 during this patrol
We have no recorded attacks on U-23 during 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.
Return to U-boat Patrols main page