F-19 Stealth fighter

At the time of the game's release there was heavy speculation surrounding a missing aircraft in the United States Air Force's numbering system, the F-19. This game was based on an educated guess about what the new "Stealth fighter" would be like. Subsequent revisions of the game incorporated the actual F-117 Nighthawk as well as the F-19.

After the completion of Project: Stealth Fighter for the C-64 by designers Jim Synoski and Arnold Hendrick, Sid Meier and Andy Hollis were brought in to work on the IBM conversion. Not content with merely porting the game, Meier and Hollis wrote an entirely new design, and as Hendrick wrote of the new game, "The only thing borrowed from the C-64 would be the game scenario concepts, military equipment research data, and perhaps some flight dynamics algorithms."