Nummer: 22002
| Area : | Black Sea |
| Sea area : | Southeast Coast (Batum) |
| Date of attack : | 23.10.1943 |
| Time of attack : | 00:41 |
| Nationality of U-boat : | German |
| U-boat : | U 23 |
| Commander : | Wahlen |
| Grid : | CS 1678 |
| presumed target type : | Motor Freighter |
| presumed tonnage : | 1000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 23.10.1943 |
| Time of observation : | 02:42 |
| Nationality of target : | Soviet |
| Actual type of target : | Motor Freighter |
| Name of target : | Tanais |
| Year of launch : | .. |
| Actual tonnage : | 372 BRT |
| Actual result : | sunk |
| Position of target : | 42.22n 41.35e |
| updated on: | 00.00.0000 |