The McDonnell Douglas F-4 Phantom II is a tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed for the United States Navy by McDonnell Aircraft. It first entered service in 1961 with the Navy. Proving highly adaptable, it was also adopted by the United States Marine Corps and the United States Air Force, and by the mid-1960s had become a major part of their air arms.

The F-4 FVS was a proposal by the McDonnell company for the United States Navy to fill the role of the F-111B, which was experiencing development troubles. It was rejected by the Navy as its older radar and AIM-7 missiles were inferior to the desired AIM-54. The Navy would later go on to purchase the now-famous Tomcat. The F-4 FVS was later offered to France and Britain as an inexpensive alternative to the Anglo-French AFVG, a contemporary swing-wing interceptor project (that eventually failed due to distrust between the British and French). It would have been designated the F-4M (FVS).

Controls:
AG1: Fold wings
AG7: Arm Arresting Hook
VTOL: Flaps
Trim: Adjust Trim