Add Yahoo as a preferred source to see more of our stories on Google. f4 phantom Twenty years prior to 1969 most air forces had been flying piston-engined fighters essentially no different from those ...

Billed as the most expensive fighter jet in the world, the F-35A Lightning II costs about $82.5 million per jet, with the engine alone costing . The F-35 program's lifetime cost is . But it's also ...