Commercial Orbital Transportation Services
In August 2006, NASA announced that Rocketplane Kistler had been chosen, along with SpaceX, to develop crew and cargo launch services, aka Commercial Orbital Transportation Services (COTS), for the International Space Station. The plan called for demonstration flights between 2008 and 2010. Rocketplane Kistler would receive up to $207 million if they met all NASA milestones.