An early design concept sometimes referred to as the Bedpost Rocket
the Kistler K-1 was a two-stage, fully reusable launch vehicle design created by Kistler Aerospace. It was to accommodate a wide range of missions, including payload delivery to low Earth orbit (LEO), payload delivery to high-energy orbits with a K-1 Active Dispenser, technology demonstration flights, microgravity missions, and commercial cargo resupply, recovery, and reboost services for the International Space Station (ISS).
In 2004, the company won a NASA contract to fly supply missions to ISS. At the time, Kistler claimed that the design of the K-1 was 75% complete, and the $227 million NASA contract would be used to complete development and the first flights. SpaceX protested, suggesting that the presence of well-known former NASA engineers biased the decision in favor of Kistler. The Government Accountability Office (GAO) sided with SpaceX and NASA suspended the contract in favor of a new process, the Commercial Orbital Transportation Services (COTS) program.
Lacking funding to complete development, in 2006 Kistler was purchased by Rocketplane Limited, Inc, who had previously been developing a competing concept. Both SpaceX and the new Rocketplane Kistler won COTS contracts in August 2006, but after failing to meet several financial Continue reading Kistler Fully Reusable Rocket Concept