
Pathfinder-Plus on a flight over the Hawaiian island of N'ihau in 1998.

The Space Shuttle prototype Enterprise flies free after being released from NASA's 747 Shuttle Carrier Aircraft (SCA) to begin a…

The twin pusher engines of the prototype Theseus research aircraft can be clearly seen in this photo of the aircraft…

NASA's PIK-20 motor-glider sailplane on the ramp at the Dryden Flight Research Center, Edwards, California.

Redesigned and rebuilt from the M2-F2, the M2-F3 featured as its most visible change a center fin for greater stability.

Paul F. Bikle, Hugh L. Dryden, and Walter C. Williams stand in front of the recently repaired and modified X-15A-2…

The Theseus prototype research aircraft waits on the lakebed before its first test flight from NASA's Dryden Flight Research Center,…

James W. "Smoke" Smolka, a research pilot at NASA's Dryden Flight Research Center, Edwards, CA, since 1985, was co-project pilot…

The F/A-18 High Alpha Research Vehicle (HARV) retains the basic F/A-18 cockpit controls with some exceptions.

A glycol-based liquid, released through very small holes around the nose of an F/A-18 flown by NASA's Dryden Flight Research…