FlightGear is a multi-platform, cooperative flight simulator development project.
The goal of the FlightGear project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application.
Great -
A bit of a pain to setup, but then a good flight sim, with lots of available aircraft.
~ anonymous
on Sep 17, 2009