Nummer: 00711
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 28.11.1939 |
| Time of attack : | 13:34 |
| Nationality of U-boat : | German |
| U-boat : | U 47 |
| Commander : | Prien |
| Grid : | AN 2250 |
| presumed target type : | Heavy cruiser |
| presumed tonnage : | 9850 ts |
| presumed result : | damaged |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Nationality of target : | British |
| Actual type of target : | Heavy cruiser |
| Name of target : | Norfolk (78) |
| Year of launch : | 1928 |
| Actual tonnage : | 9975 ts |
| Actual result : | target visibly missed |
| Footnote : | The torpedo fired by U-47 exploded in the wake of the cruiser HMS "Norfolk". |
