Meet the F-110A Spectre
Originally pitched by McDonnell to the Air Force as the F-110A Spectre, this smokey J-79 twin-engined beast was the Air Force’s version of the famed, albeit Navy, F4H-1.
The corporate propaganda from 1962:
Ultimately, the McNamara Pentagon would just call both versions of the plane the F-4 Phantom II, with the Navy using at first the F-4B (the old F4H-1) and the USAF the F-4C (the F-110A). The first Air Force Phantom flew on 27 May 1963.