Boeing CST-100 Starliner Orbital Flight Test (OFT) Dual Engine C

The United Launch Alliance (ULA) Orbital Flight Test dual engine Centaur stage of the Atlas V rocket is in the final stage of production and checkout on May 22, 2018, at ULA's factory in Decatur, Alabama. Boeing's CST-100 Starliner will launch on its first uncrewed flight test on the ULA Atlas V rocket. The Starliner is being developed and manufactured in partnership with NASA's Commercial Crew Program to return human spaceflight capabilities to the U.S.