Pre-Flight Free download

Edit by Brothersoft: PRE-Flight RC Flight Simulator has the powerful Physics and Rendering Engine (the "PRE" in PRE-Flight) which allows super-accurate simulation of all types of aircraft. Whether you're a beginner, advanced user, or aircraft designer, you'll find PRE-Flight is all you need.
Some features of PRE-Flight:

High-Accuracy Physics for flight and ground contact.
Photorealistic 3D texturing with transparency, reflection, shadows, and highlighting.
Models have moveable control surfaces, propellers, rotors, and Landing gear.
Photorealistic Sceneries capable of reproducing your real flying field.
32-Player Hosting Multiplayer over Internet or LAN.
Use your own Transmitter or USB Controllers (depending on bundle options)

Requirements: No special requirements