Nummer: 02810
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 09.09.1940 |
| Time of attack : | 04:47 |
| Nationality of U-boat : | German |
| U-boat : | U 28 |
| Commander : | Kuhnke |
| Grid : | AM 0294 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 7000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SC.2 |
| Date of observation : | 09.09.1940 |
| Time of observation : | 03:45 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Mardinian |
| Year of launch : | 1919 |
| Actual tonnage : | 2434 BRT |
| Actual result : | sunk |
| Position of target : | 56.37n 09w |
| Convoy : | SC.2 |
| Route of convoy : | Sydney (Nova Scotia) - United Kingdom |
| Remark to convoy : | Slow (Atlantic) Convoys since Aug 1940, fast ones = HX, counter traffic = ON. |