Nummer: 03409c
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 19.10.1940 |
| Time of attack : | 23:47 |
| Nationality of U-boat : | German |
| U-boat : | U 46 |
| Commander : | Endraß |
| Grid : | AL 6331 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 5000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | HX.79 |
| Date of observation : | 19.10.1940 |
| Time of observation : | 23:23 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Ruperra |
| Year of launch : | 1925 |
| Actual tonnage : | 4548 BRT |
| Actual result : | sunk |
| Position of target : | 57n 16w |
| Footnote : | U-46 and U-47 attacked at the same time from the same side; U-46 from a position further southward. Both U-boats stated their torpedoes running 1500 meters before the detonations were heard. That makes probable that U-46's second torpedo hit "Ruperra", steaming south of "Wandby" in column 6. |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | HX.79 |
| Route of convoy : | (New York) - Halifax - United Kingdom |
| Remark to convoy : | Sep 1939 to Sep 1942 ab Halifax, then from New York (counter traffic = ON), vgl. HXF und SC. |