Nummer: 03412b
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 20.10.1940 |
| Time of attack : | 00:16 |
| Nationality of U-boat : | German |
| U-boat : | U 100 |
| Commander : | Schepke |
| Grid : | AL 0381 |
| presumed target type : | Tanker |
| presumed tonnage : | 10000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | HX.79 |
| Date of observation : | 19.10.1940 |
| Time of observation : | 23:15 |
| Nationality of target : | British |
| Actual type of target : | Motor Tanker |
| Name of target : | Sitala |
| Year of launch : | 1937 |
| Actual tonnage : | 6218 BRT |
| Actual result : | sunk |
| Position of target : | 150sm SW Rockall |
| related attacks : | Angriff 1 |
| Convoy : | HX.79 |
| Route of convoy : | (New York) - Halifax - United Kingdom |
| Remark to convoy : | Sep 1939 to Sep 1942 ab Halifax, then from New York (counter traffic = ON), vgl. HXF und SC. |