. . . . . "National Aero-Space Plane" . . "X-30 NASP" . . . "Rockwell X-30" . . . . . . "Rockwell X-30 National Aerospace Plane" . . . . . "National Aerospace Plane (NASP)" . . . . . . . . . . . . . . . . "X-30" . . . . . . . . . . . . . . "Aerospace Plane" . . . . "Rockwell X-30" . "National Aerospace Plane" . "Rockwell X-30 NASP" . . . "X-30 National Aerospace Plane" . . . . . . . . . "''Orient Express'' X-30 follow-on" . . . . . . . . . . . . . . . . "NASP" . . .