An artist's conception of the X-33 in flight, with the aerospike engine firing.
This is an artist concept of the X-34 Technology Testbed Demonstrator.
The unique XV-15 Tiltrotor aircraft in vertical flight at the NASA Dryden Flight Research Center.
Dryden Aircraft Operations Facility, Palmdale, California
X-34. Specific technologies built into the vehicle include composite structures, composite reusable propellant fuel tanks, an advanced thermal protection system,…
This is the X-34 Technology Testbed Demonstrator being mated with the L-1011 mothership.
The XV-15 Tiltrotor ships #1 and #2 parked on the NASA Dryden Flight Research Center ramp.
This artist's rendering depicts the Rockwell International X-33 technology demonstrator.
This artist's rendering depicts the McDonnell Douglas X-33 proposal.
This artist's rendering depicts the Lockheed Martin X-33.
