SpaceX’s Grasshopper – a 10-story vertical takeoff and landing (VTVL) vehicle -- rose nearly two stories off the ground in an 8-second duration test hop conducted on November 1. The rocket rose 17.7 feet, hovered, and touched back down safely on the pad at SpaceX’s rocket development facility in McGregor, Texas. (www.aero-news.net) 更多...
