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.
This artist's rendering depicts the NASA/Lockheed Martin X-33 technology demonstrator for a Single-Stage-To-Orbit (SSTO) Reusable Launch Vehicle (RLV) at high…
Steve Ishmael flies a simulation of the X-33 Advanced Technology Demonstrator at NASA's Dryden Flight Research Center, Edwards, CA.
X-33 program engineers at NASA's Dryden Flight Research Center, Edwards, CA, monitor a flight simulation of the X-33 Advanced Technology…
In this 1950 view of the right side of the NACA High-Speed Flight Research Station's X-4 research aircraft, the low…
In-flight photo of the NASA F-15B used in tests of the X-33 Thermal Protection System (TPS) materials.
