|
''X-Plane'' is a flight simulator produced by Laminar Research. A desktop version is available for Mac OS X, Windows, and Linux, while a mobile version is available for Android, iOS, and webOS.〔(【引用サイトリンク】title=Meet X-Plane Mobile - X-Plane )〕 X-Plane is packaged with several commercial, military, and other aircraft, as well as basic global scenery which covers most of the Earth. X-Plane also ships with other software to build and customize aircraft and scenery. X-Plane also has a plugin architecture that allows users to create their own modules, extending the functionality of the software by letting users create their own worlds or replicas of places on Earth. , the most recent version is ''X-Plane 10.41''. X-Plane 10 comes in a cardstock or tin case on eight dual-layer DVDs, most of which comprise the global scenery, which is 86 GB compressed. The scenery spans from 70 degrees south to 74 degrees north. Switching the planetary model to Mars is an option that comes with X-Plane 9 only, and although the atmosphere is thin, flight is possible. ==Flight model== ''X-Plane'' differentiates itself from other simulators by implementing an aerodynamic model called blade element theory.〔(How X-Plane Works )〕 Traditionally, flight simulators emulate the real-world performance of an aircraft by using empirical data in predefined lookup tables to determine aerodynamic forces such as lift or drag, which vary with differing flight conditions. These simulators sufficiently simulate the flight characteristics of the aircraft, specifically those with known aerodynamic data, but are not useful in design work, and do not predict the performance of aircraft when the actual figures are not available. Blade element theory improves on this type of simulation by modeling the forces and moments on an aircraft, and individually evaluating the parts that constitute it. Blade-element theory and other computational aerodynamic models are often used to compute aerodynamic forces in real time ''or'' pre-compute aerodynamic forces of a new design for use in a simulator employing lookup tables. With blade element theory, a surface (e.g. wing) may be made up of many sections (1 to 4 is typical), and each section is further divided into as many as 10 separate subsections. After that, the lift and drag of each section is calculated, and the resulting effect is applied to the whole aircraft. When this process is applied to each component, the simulated aircraft will fly similar to its real-life counterpart. This approach allows users to design aircraft quickly and easily, as the simulator engine immediately illustrates how an aircraft with a given design might perform in the real world. X-Plane can model fairly complex aircraft designs, including helicopters, rockets, rotor craft, and tilt-rotor craft. Blade element theory has shortcomings, as it can sometimes be difficult to design an aircraft that performs precisely as would real-world aircraft. However, as the flight model is refined, the simulator can better resemble real-world performance, and aircraft quirks, and design flaws. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「X-Plane (simulator)」の詳細全文を読む スポンサード リンク
|