Nummer: 26813
| Area : | Indic Ocean |
| Sea area : | South Africa |
| Date of attack : | 11.05.1943 |
| Time of attack : | 04:08 |
| Nationality of U-boat : | German |
| U-boat : | U 181 |
| Commander : | Lüth |
| Grid : | KP 3777 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 5232 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 11.05.1943 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Tinhow |
| Year of launch : | 1913 |
| Actual tonnage : | 5232 BRT |
| Actual result : | sunk |
| Position of target : | 25.15s 33.30e |