Once inside, you can enjoy true “wind-in-the-wires” flight behind the stick of a Nieuport 28, break the sound barrier in Bell's X-29 or branch out into some of today's hottest new aircraft. And whatever the choice, real-time response and RealPhysics™ accuracy will make a session on the sim seem more like a trip to the field.
  Four new flying sites further enhance the feeling. All three PhotoField™ sites provide scenes that offer richer and deeper levels of detail with definition and clarity that set RealFlight apart from other sims. And with the outdoor obstacle course, you can enjoy a “living”, ever-changing 3D environment. Epansion Pack 1 is compatible with RealFlight Generation 3, 3.5 or 4.