Nummer: 09515
| Area : | Western Area |
| Sea area : | US East Coast |
| Date of attack : | 13.05.1942 |
| Time of attack : | 21:38 |
| Nationality of U-boat : | German |
| U-boat : | U 506 |
| Commander : | Würdemann |
| Grid : | DA 9536 |
| presumed target type : | Tanker |
| presumed tonnage : | 6000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 2- |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 13.05.1942 |
| Time of observation : | 20:50 |
| Nationality of target : | American |
| Actual type of target : | Steam Tanker |
| Name of target : | Gulfpenn |
| Year of launch : | 1921 |
| Actual tonnage : | 8862 BRT |
| Actual result : | sunk |
| Position of target : | 28.29n 89.17w |
