Scaled Composites is moving closer to the start of powered flight tests of Virgin Galactic’s SpaceShipTwo with the installation of major elements of the rocket system, including the main oxidizer tank, at Mojave, Calif. Photographs released by Virgin Galactic on Oct. 19, show the large nitrous oxide tank being lowered into position in the center of the SS2. The tank will feed the Sierra Nevada-developed RM2 hybrid rocket motor that will power the vehicle to suborbital altitudes at speeds ...


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