The AD-1 aircraft with its wing swept. Visible are the twin jet engines that powered the aircraft and the fixed landing gear.

AD-1 in flight. Flight #30. The AD-1 aircraft in flight with its wing swept at 60 degrees, the maximum sweep angle.

Multiple exposure image showing wing movement on AD-1.

The cockpit and instrument panel of the AD-1 aircraft. Due to the small size of the AD-1, instrumentation was limited and the cockpit was cramped.

Research pilot Richard E. Gray, standing in front of the AD-1 Oblique Wing research aircraft.