Lockheed Martin engineers are pouring over the results of several ground speed taxi tests of the F-35 Lightning II Joint Strike Fighter before giving the OK to take the new fighter into the air. In the last taxi test Tuesday, Lockheed’s chief test pilot Jon Beesley sped down the runway at speeds up to 127 mph. A company statement said Lockheed would alert the news media “upon conclusion of the flight.”
A new report from the Government Accountability Office calls for the Pentagon’s Chief Technology Officer to have budget certification authority over the military services’ research and development accounts—a move the services say would add a burdensome and unnecessary layer of bureaucracy.

