High Quality Content by WIKIPEDIA articles! The Vought F-8 Crusader (originally F8U) was a single-engine, supersonic, carrier-based air superiority jet aircraft built by Vought for the United States Navy and the U.S. Marine Corps, replacing the Vought F7U Cutlass. After the Navy`s disappointing experience with the F7U, the F8U was referred to by some as "Vought`s Last Chance." The first F-8 prototype was ready for flight in February 1955, and was the last American fighter with guns as the primary weapon, principally serving in the Vietnam War. The RF-8 Crusader was a photo-reconnaissance development and operated longer in U.S. service than any of the fighter versions. RF-8s played a crucial role in the Cuban Missile Crisis, providing essential low-level photographs impossible to acquire by other means.U.S. Naval Reserve units continued to operate the RF-8 until 1987.