Stratolaunch Systems, a commercial satellite launch developer backed by Paul Allen, is shifting its strategy to focus its rocket system solely on solid-fuel propulsion after dashing plans in August to consider liquid-fueled options, says Gary Wentz, company CEO. The company “suspended work on the liquid variant air launch vehicle but continues to pursue an all-solid vehicle” with its contractor, Orbital Sciences Corp., he tells Aviation Week. The work suspension was ordered on ...


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