
Orbital Sciences’ Stargazer L-1011 carrier aircraft with X-34 attached beneath.

Orbital Sciences’ Stargazer L-1011 carrier aircraft with X-34 attached beneath.

Dryden Flight Research Center – aircraft fleet on ramp.

Another artist’s conception of the X-33, this time after engine shutdown.

X-34 Technology Testbed Demonstrator.

This is an artist’s conception of the NASA/Lockheed Martin X-33 on the back of a modified 747 airliner.

The unique XV-15 Tiltrotor aircraft is seen in vertical flight at the NASA Dryden Flight Research Center.

Orbital Sciences’ Stargazer L-1011 carrier aircraft with X-34 attached.

An overall view of the launch pad built for the X-33.

The XV-15 Tiltrotor aircraft undergoing tests on the VTOL stand.