
NASA’s ultra-quiet YO-3A acoustics research aircraft taxis out from the ramp at the Dryden Flight Research Center before a pilot…

This NACA High-Speed Flight Research Station photograph of the X-5 was taken at the South Base of Edwards Air Force…

The X-24B lifting body is seen here in flight over the lakebed at NASA Flight Research Center, Edwards, CA.

NASA Dryden Flight Research Center’s F/A-18B Systems Research Aircraft on an External Vision System project flight.

The slow-speed wooden propeller and long wings are evident as NASA’s YO-3A acoustics research aircraft performs a low-level flyover at…

Pathfinder-Plus on a flight over Hawaii in 1998.

The solar-electric Helios Prototype flying wing is shown over the Pacific Ocean during its first test flight on solar power…

The solar-electric Helios Prototype flying wing is shown near the Hawaiian island of Niihau during its first test flight on…

The takeoff set the stage for a two-day Helios endurance flight in the stratosphere planned for mid-July.

Small numbers on the nose cap of the F/A-18 Systems Research Aircraft at NASA’s Dryden Flight Research Center, Edwards, CA,…