Nummer: 00414b
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 14.10.1939 |
| Time of attack : | 01:16 |
| Nationality of U-boat : | German |
| U-boat : | U 47 |
| Commander : | Prien |
| Grid : | AN 1610 |
| presumed target type : | Battleship id |
| presumed tonnage : | 29150 ts |
| presumed result : | sunk |
| Number of torpedoes/mines : | 3 |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 14.10.1939 |
| Time of observation : | 01:23 |
| Nationality of target : | British |
| Actual type of target : | Battleship |
| Name of target : | Royal Oak |
| Year of launch : | 1914 |
| Actual tonnage : | 29150 ts |
| Actual result : | sunk |
| Position of target : | 58.55n 02.59w |
| Footnote : | During the first attack at 23:58h only one torpedo detonated near the bow of HMS "Royal Oak" without great effect. During the second attack at 1:16 h U-47 hit with three torpedoes the battleship, which listed and sank in 13 minutes. |
| related attacks : | Angriff 1 |
