Nummer: 06413b
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 10.09.1941 |
| Time of attack : | 07:29 |
| Nationality of U-boat : | German |
| U-boat : | U 81 |
| Commander : | Guggenberger |
| Grid : | AD 6836 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 6000 BRT |
| presumed result : | sunk ? |
| Number of torpedoes/mines : | - |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SC.42 |
| Footnote : | U-81 observed a ship sinking after two hits and heard two other detonations. The fifth torpedo probably was a dud. |
| related attacks : | Angriff 1 |
| Convoy : | SC.42 |
| Route of convoy : | Sydney (Nova Scotia) - United Kingdom |
| Remark to convoy : | Slow (Atlantic) Convoys since Aug 1940, fast ones = HX, counter traffic = ON. |