Nummer: 00911
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 28.12.1939 |
| Time of attack : | 15:45 |
| Nationality of U-boat : | German |
| U-boat : | U 30 |
| Commander : | Lemp |
| Grid : | AM 3540 |
| presumed target type : | Battleship |
| presumed tonnage : | 31100 ts |
| presumed result : | damaged |
| Number of torpedoes/mines : | 4 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | Task F. |
| Date of observation : | 28.12.1939 |
| Time of observation : | 14:49 |
| Nationality of target : | British |
| Actual type of target : | Battleship |
| Name of target : | Barham (04) |
| Year of launch : | 1914 |
| Actual tonnage : | 31100 ts |
| Actual result : | damaged |
| Position of target : | 58.47n 08.05w |
| Convoy : | Task F. |