Kelly Space & Technology (Popularity: ): Future looking launch vehicles by private industry Nasa X-Planes (Popularity: ): Provides a centralized location for information on Nasa X-aircraft. Also provides links to photos, fact sheets, line drawings and movie clips. Chariots for Apollo: A History of Manned Lunar Spacecraft (Popularity: ): By Courtney G. Brooks. James M. Grimwood and Loyd S. Swenson, Jr. Hypersonic Waveriders (Popularity: ): Hypersonic flow theory and applications to waveriders and other hypersonic flight vehicles. Project One (Popularity: ): The engineering of a rocket for the space access prize. ASTEK Lt Aerospace Russia (Popularity: ): Space related company in Russia, launch vehicle and rocket engine design and manufacturing, commercial launch and satellite. BA-2 Launch Vehicle (Popularity: ): Information on Beal Aerospace's liquid-fueled, three-stage heavy lift launcher. The rocket can deliver a 37,400 pound payload into low Earth orbit or into geosynchronous tranfer orbit. Space Launcher: Pylon Turn Wing Concept (Popularity: ): An hypothetical alternative space launch system. Aerosike Engine (Popularity: ): Information about aerospike and annular nozzles, such as how they work and their advantages and disadvantages. Sky Ramp Technology (Popularity: ): Information on sky ramp technology and its applications.