X-Plane 9 | MacOSX | 34.72Gb
X-Plane is the most thorough, flexible, and realistic flight simulator available for personal computers.X-Plane works by reading in the geometric shape of any aircraft and then figuring out how that aircraft will fly. It does this by an engineering process called "blade element theory", which involves breaking the aircraft down into many small elements and then finding the forces on each little element many times per second. These forces are then converted into accelerations, which are then integrated to velocities and positions... Of course, all of this technical theory is completely transparent to the end user... you just fly! It's fun!