High Quality Content by WIKIPEDIA articles! Stratolaunch Systems is a space transportation venture specializing in air launch to orbit, with its corporate headquarters located in Huntsville, Alabama. It was founded in 2011 by Microsoft co-founder Paul G. Allen and Scaled Composites founder Burt Rutan, who had previously collaborated on the creation of SpaceShipOne. The start up will build a mobile launch system with three primary components; a carrier aircraft to be built by Scaled Composites, a multi-stage launch vehicle built by Orbital Sciences, and a mating and integration system to be built by Dynetics, with the first test flight of the carrier aircraft expected in 2015. Dynetics will also be "responsible for the systems engineering, integration and testing, which includes aerodynamics, loads, and interfaces." Development costs have been estimated at US$300 million.