Nummer: 00810
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 10.12.1939 |
| Time of attack : | 06:55 |
| Nationality of U-boat : | German |
| U-boat : | U 20 |
| Commander : | Moehle |
| Grid : | AN 4444 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 4000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Date of last departure : | 07.12.1939 |
| Nationality of target : | Norwegian |
| Actual type of target : | Steam Freighter |
| Name of target : | Föina |
| Year of launch : | 1915 |
| Actual tonnage : | 1674 BRT |
| Actual result : | sunk |
| Position of target : | Sarpsborg - Grangemouth |
Steam Freighter Föina ex Føina (bis )
| updated on: | 31.08.2017 |
| Remark: | Føina = F-ö-ina |
| Changes: | 1) Zimmerman 9, 1996 2) warsailors.com: Føina = Föina |