Nummer: 01318
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 13.02.1940 |
| Nationality of U-boat : | German |
| U-boat : | U 53 |
| Commander : | Grosse |
| Grid : | AM 51-- |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Date of last departure : | 07.02.1940 |
| Nationality of target : | Swedish |
| Actual type of target : | Steam Freighter |
| Name of target : | Norna |
| Year of launch : | 1914 |
| Actual tonnage : | 1022 BRT |
| Actual result : | sunk |
| Position of target : | 55.30n 11.00w |
| Footnote : | "Norna" departed Gibraltar on Feb.7th and was reported missing thereafter. |
| updated on: | 00.00.2002 |
| Remark: | Anm.: NorNa |