Nummer: 00306
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 24.09.1939 |
| Time of attack : | 08:00 |
| Nationality of U-boat : | German |
| U-boat : | U 33 |
| Commander : | Dresky |
| Grid : | AM 3228 |
| presumed target type : | Steam Freighter id |
| presumed tonnage : | 600 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Gunfire |
| Date of observation : | 24.09.1939 |
| Time of observation : | 07:00 |
| Nationality of target : | British |
| Actual type of target : | Trawler, Drifter |
| Name of target : | Caldew |
| Year of launch : | 1914 |
| Actual tonnage : | 287 BRT |
| Actual result : | sunk |
| Position of target : | 60.47n 06.20w |
