X-Plane 9 is the most comprehensive and powerful flight simulator for the PC. X-Plane 9 simulates anything that flies. From single-engine fixed-wing props to multi-engine jets, gliders to dirigibles, helicopters to spacecraft to VTOLs, X-Plane 9 simulates them all. Using blade-element theory, X-Plane 9 accurately simulates the aerodynamic properties of any lifting surface, producing the most realistic flight dynamics available. Create your own aircraft using the included Plane-Maker tool, or design your own scenery with World-Maker, X-Plane includes over 30 aircraft spanning the aviation industry and history, with hundreds more commercial and user-created planes available for download. System Requirements - DVD Drive required, Windows XP or Vista, 2GHz Processor, up to 60GB free space, USB joystick or yoke, Internet Access, and 64MB RAM Video Card