Nummer: 13911
| Area : | Western Area |
| Sea area : | Central Atlantic |
| Date of attack : | 27.11.1942 |
| Time of attack : | 04:50 |
| Nationality of U-boat : | German |
| U-boat : | U 176 |
| Commander : | Dierksen |
| Grid : | ES 1659 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 6300 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 27.11.1942 |
| Nationality of target : | Dutch |
| Actual type of target : | Steam Freighter |
| Name of target : | Polydorus |
| Year of launch : | 1924 |
| Actual tonnage : | 5922 BRT |
| Actual result : | sunk |
| Position of target : | 09.01n 25.38w |
