Included in the software are various flying sites (or airports) and aircraft models, almost all of which represent real-life models. The software also includes an airport editor and an aircraft editor to allow for the creation of new flying sites and aircraft.
The software is released in "generations", with each new generation including major updates and new features. The most recent generation is Generation 4, which included changes such as water and water physics, an improved user interface, more aircraft, more flying sites, and an improved "InterLink Elite" controller.
Knife Edge Software also develops a line of expansion packs for the simulator, each of which adds new maps and aircraft.
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