Scaled Composites Model 316 "SpaceShipOne" (aka SS1) is a suborbital spaceplane. It was designed to win the suborbital spaceflight X-Prize. Only one example of this craft was built by Scaled Composites, N328KF, which won the X-Prize. It is lofted into the air and airlaucnhed from Scaled Composites WhiteKnightOne, as part of the Scaled Composites Tier One suborbital space access platform. The follow-on design to this one is Scaled Composites SpaceShipTwo.