Nummer: 18312b
| Area : | Western Area |
| Sea area : | South Atlantik |
| Date of attack : | 20.07.1944 |
| Time of attack : | früh |
| Nationality of U-boat : | German |
| U-boat : | U 861 |
| Commander : | Oesten |
| Grid : | GB 2154 |
| presumed target type : | Patrol Craft |
| presumed result : | hit not ascertained |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 20.07.1944 |
| Nationality of target : | Brazilian |
| Actual type of target : | Patrol Craft |
| Name of target : | Javari |
| Year of launch : | 1942 |
| Actual tonnage : | 98 ts |
| Actual result : | target visibly missed |
| Footnote : | U-861 sank the Brazilian freighter "Vital de Oliveira" on Jul.20th and missed the escorting sub-chaser "Javari". On Jul.24th she sank "William Gaston", and escaped from an attack of Task Group 41.6. |
| related attacks : | Angriff 1 |