Category
page 1Cancelled American spaceplanes
X-20 Dyna-Soar
research aircraft by Boeing
NASA X-38
airplane
Lockheed Martin X-33
uncrewed re-usable spaceplane technology demonstrator for the VentureStar
Orbital Sciences X-34
low-cost testbed for the Reusable Launch Vehicle program
Rockwell X-30
airplane

VentureStar
thumb|VentureStar releasing a spacecraft
VentureStar was a single-stage-to-orbit reusable launch system proposed by Lockheed Martin and funded by the U.S. government. The goal was to replace the Space Shuttle by developing a re-usable spaceplane that could launch satellites into orbit at 1/10 of the cost. While the requirement was for an uncrewed launcher, it was expected to carry passengers as cargo. The VentureStar would have had a wingspan of , a length of , and would have weighed roughly 1,000 tonnes (2.2 million lb).
Lynx
Cancelled American spacecraft
Rotary Rocket
company
X-41 Common Aero Vehicle
US military spaceplane
SpaceShip III
planned suborbital, air-launched spaceplane