
A modified General Dynamics Transonic Aircraft Technology (TACT)/F-111A Aardvaark with supercritical wings installed.

The General Dynamics Transonic Aircraft Technology (TACT)/F-111A (Serial #63-9778) banks over the Mojave Desert.

The General Dynamics Transonic Aircraft Technology (TACT)/F-111A Aardvark is seen In a banking turn over the California Mojave desert.

AeroVironment technicians removed the Pathfinder-Plus solar aircraft from its ground dolly before a turbulence measurement flight from Rogers Dry Lake.

NASA's F-15A Highly Integrated Digital Electronic Control (HIDEC) research aircraft cruised over California's Mojave Desert at sunset on a flight…

NASA's highly modified F-15 (left), used for digital electronic flight and engine control systems research, was accompanied by an F-18…

NASA's F-15A Highly Integrated Digital Electronic Control (HIDEC) aircraft nears the runway after a flight out of NASA's Dryden Flight…

An F-15A used by NASA's Dryden Flight Research Facility (now Center), Edwards, Calif., for digital electronic flight and engine control…

NASA's highly modified F-15A (Serial #71-0287) used for digital electronic flight and engine control systems research, at sunrise on the…

In August 1947, Howard Clifton Lilly became the first permanently assigned NACA engineering test pilot at the National Advisory Committee…