Nummer: 00716b
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 02.12.1939 |
| Time of attack : | 22:40 |
| Nationality of U-boat : | German |
| U-boat : | U 56 |
| Commander : | Zahn |
| Grid : | AN 5134 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 02.12.1939 |
| Time of observation : | 23:33 |
| Nationality of target : | Swedish |
| Actual type of target : | Steam Freighter |
| Name of target : | Rudolf |
| Year of launch : | 1922 |
| Actual tonnage : | 2119 BRT |
| Actual result : | sunk |
| Position of target : | 56.15n 01.25w |
| related attacks : | Angriff 1 |
