X-Wing Rotor Systems Research AircraftOne of the most unusual experimental flight vehicles appearing at NASA's Ames-Dryden Flight Research Facility in the 1980s was the...One of the most unusual experimental flight vehicles appearing at NASA's Ames-Dryden Flight Research Facility in the 1980s was the...The Rotor Systems Research Aircraft/X-Wing, a vehicle that was used to demonstrate an advanced rotor/fixed wing concept called X-Wing, is...ECN-30043A Rotor Systems Research Aircraft (RSRA) is seen here on a flight test at the Dryden Flight Research Center, Edwards,...A Rotor Systems Research Aircraft (RSRA) is seen here on the ramp at the Dryden Flight Research Center, Edwards, Calif.,...