
The XB-70A is shown parked on a ramp at Edwards Air Force Base in 1967.

The Northrop Aviation YF-17 technology demonstrator aircraft in flight during a 1976 flight research project at NASA’s Dryden Flight Research…

Pathfinder-Plus in flight over Hawaii.

The highly-modified F/A-18 Systems Research Aircraft (SRA) flown by the Dryden Flight Research Center in a joint NASA/DOD/industry research project…

In this view the #1 XB-70A (62-0001) is in a level cruise flight mode at a relative high altitude judging…

E-17402The NACA High-Speed Flight Research Station X-4 research aircraft is seen in this 1950s in-flight photograph. The X-4 Bantam, a…

NASA’s Systems Research Aircraft (SRA), a highly modified F/A-18 jet fighter, shows its colors during a research flight.

Viewed from the front the #1 XB-70A (62-0001) is shown climbing out during take-off.

This bright blue-and-white twin-jet aircraft may have looked like an ordinary F/A-18 Hornet fighter, but inside it was a different…