Nummer: 20607
| Area : | Arctic Ocean |
| Sea area : | North Norway |
| Date of attack : | 02.04.1944 |
| Time of attack : | 18:47 |
| Nationality of U-boat : | German |
| U-boat : | U 711 |
| Commander : | Lange |
| Grid : | AC 4461 |
| presumed target type : | Destroyer |
| presumed tonnage : | 1870 ts |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | JW.58 |
| Nationality of target : | British |
| Actual type of target : | Destroyer |
| Name of target : | Ashanti (F.51) |
| Year of launch : | 1937 |
| Actual tonnage : | 1870 ts |
| Footnote : | Gnat detonations were heard by U-711 after 2:05 min, and by U-739 after 2:25 min and 1:35 min. The last one was indentified by both boats as an explosion. |
| Convoy : | JW.58 |
| Route of convoy : | Loch Ewe - (Iceland) - Kola Fjord - (Arkhangelsk) |
| Remark to convoy : | Since Dec 1942, former PQ (counter traffic = RA) |