Nummer: 00413a
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 13.10.1939 |
| Time of attack : | 23:58 |
| Nationality of U-boat : | German |
| U-boat : | U 47 |
| Commander : | Prien |
| Grid : | AN 1610 |
| presumed target type : | Battleship |
| presumed tonnage : | 32000 ts |
| presumed result : | damaged |
| Number of torpedoes/mines : | 4 |
| Used weapon(s) : | Torpedo(es) |
| Name of target : | Schlachtschiff |
| Actual result : | hit not ascertained |
| Position of target : | Scapa Flow |
| Footnote : | During the first attack at 23:58h U-47 fired 3 torpedoes from her bow tubes (a fourth was a dud) and after turning, one torpedo from an aft tube. Only one torpedo detonated near the bow of HMS "Royal Oak" without great effect. U-47 assumed that she hit a ship behind "Royal Oak", misidentified as the battlecruiser "Repulse". In reality this ship was the aircraft repair ship "Pegasus", which was not damaged at all. |
| related attacks : | Angriff 1 |