SpaceShipTwo Glide Flight Test, Rocket Motor Firing Completed On Same Day

SpaceShipTwo Glide Flight Test, Rocket Motor Firing Completed On Same Day: Company On Track For First Powered Flight By End Of Year SpaceShipTwo (SS2) is two steps closer to making its first powered flight, after the suborbital space vehicle successfully completed its first glide flight test since a recent integration period for rocket motor systems and maintenance, and the spaceship’s engine, RocketMotorTwo (RM2), underwent another successful full duration test fire ... on the same day.