Nummer: 20810
| Area : | Arctic Ocean |
| Date of attack : | 23.08.1944 |
| Time of attack : | 07:28 |
| Nationality of U-boat : | German |
| U-boat : | U 711 |
| Commander : | Lange |
| Grid : | AC 2729 |
| presumed target type : | Destroyer |
| presumed result : | damaged |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | Task F. |
| Nationality of target : | Soviet |
| Actual type of target : | Destroyer |
| Name of target : | Zharkii ex Brighton (I.08) |
| Year of launch : | 1918 |
| Actual tonnage : | 1190 ts |
| Actual result : | hit not ascertained |
| Footnote : | It is improbable that "Arkhangelsk" was hit by the torpedo, which detonated after a run time of 8:45 min. A gnat detonation reported to be heard by U-711 was probably a depth charge dropped by the soviet destroyer "Zharkii". |
Destroyer Zharkii ex Brighton (I.08) ex American Destroyer Cowell (DD.167) (bis 1940)
| Convoy : | Task F. |