Nummer: 11913
| Area : | Western Area |
| Sea area : | Central Atlantic |
| Date of attack : | 30.08.1942 |
| Time of attack : | 06:12 |
| Nationality of U-boat : | German |
| U-boat : | U 564 |
| Commander : | Suhren |
| Grid : | EE 9933 |
| presumed target type : | Tanker |
| presumed tonnage : | 9000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) + Gunfire |
| Date of observation : | 30.08.1942 |
| Nationality of target : | Norwegian |
| Actual type of target : | Motor Tanker |
| Name of target : | Vardaas |
| Year of launch : | 1931 |
| Actual tonnage : | 8176 BRT |
| Actual result : | sunk |
| Position of target : | 11.35n 60.40w |
