Nummer: 05505a
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 06.06.1941 |
| Time of attack : | 02:15 |
| Nationality of U-boat : | Italian |
| U-boat : | VENIERO |
| Commander : | Petroni |
| Grid : | 34.25n 11.05w |
| presumed target type : | Tanker |
| presumed tonnage : | 7000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | HG.64 |
| Date of observation : | 06.06.1941 |
| Time of observation : | 00:15 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Ariosto |
| Year of launch : | 1940 |
| Actual tonnage : | 2176 BRT |
| Actual result : | target visibly missed |
| Footnote : | "Ariosto" in pos.41 observed torpedoes passing by at the time of "Veniero's" attack. During this operation only "Baron Lovat" and "Taberg" were lost most probably by the attack of "Marconi". |
| related attacks : | Angriff 1 |
| Convoy : | HG.64 |
| Route of convoy : | Gibraltar - United Kingdom (home) |
| Remark to convoy : | Sep 1939 to Sep 1942, then MKF und MKS |