Cynthia Hayward (later Cynthia Ford) is credited with the role of Mrs. Nina Moore, the wife of Col. Moore (played by Glenn Ford), and would become Ford's third wife (married 1977, divorced 1984).
The "star" of the show is a Gulfstream II with the fictitious tail no. "A-75412". While the USAF did operate Gulfstream jets, it's unclear if they operated Gulfstream IIs. The type was used by the US Army Corps. of Engineers. According to numerous aviation sites, the plane used was a civilian-owned aircraft then having the tail code N8000J. Those same sites indicate that, as of 2023, the plane is still in use, registered as N36PN.