Tags: Rocket.
Liberty was a 2011 launch vehicle concept proposed to NASA by Alliant Techsystems (ATK) and Astrium under phase 2 of the NASA Commercial Crew Development (CCDev) program intended to stimulate development of privately operated crew vehicles to low Earth orbit.Liberty was not selected for funding by in the Commercial Crew Development program and ATK has stated that the company was ‘moving on’ after it lost out on NASA funding.The Liberty design proposal was a combination of hardware from the defunct Ares I project (the five-segment version of the Space Shuttle Solid Rocket Booster for a first stage) and from the commercial Ariane 5 launcher (the Vulcain cryogenic main engine which was slated to carry the Hermes (spacecraft) as a second stage).
