During the late 1950s, Vought developed a follow-on version to the F8U1 and F8U2 Crusader, the XF8U-3_Crusader_III. In a fly-off against the F4 Phantom, it was found to have superior maneuverability, but the F4 was chosen due to the provision of a dedicated RIO. Suppose, however, that the F8 was...