It's been billed as the smartest jet fighter on the planet, designed to strike enemies in the air and on the ground without being detected by radar.
But after a decade of intensive development, the F-35 Joint Strike Fighter is over budget, a long way behind schedule and described by one expert as "big, fat and draggy". So is this plane a super fighter or a massive waste of money?
Is this plane a super fighter or a massive waste of money? Reporter Andrew Fowler travels to the United States in search of answers. He goes to Lockheed Martin's top secret factory in Texas.
He also secured the first television interview with the Pentagon's new head man on the project, whose candid assessment of the JSF would chill many in the Defence Department: "Well let's make no mistake about it. This program still has risks, technical risks, it has cost issues, it has problems we'll have to fix in the future."