Nummer: 01414
| Area : | Western Area |
| Sea area : | North Sea |
| Date of attack : | 18.02.1940 |
| Time of attack : | 00:23 |
| Nationality of U-boat : | German |
| U-boat : | U 61 |
| Commander : | Oesten |
| Grid : | AN 2779 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 3000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Date when ship was reported missed : | 17.02.1940 |
| Nationality of target : | Panamanian |
| Actual type of target : | Steam Freighter |
| Name of target : | El Sonador |
| Year of launch : | 1897 |
| Actual tonnage : | 1406 BRT |
| Actual result : | sunk |
| Position of target : | E Shetlands |
| Footnote : | "El Sonador" was reported missing after Feb.17th in the area east of the Shetlands. |
Steam Freighter El Sonador ex Dutch Batavier III (bis 1939)