Allows minimal simulator functionality.

• Great Planes® RealFlight G4 R/C Flight Simulator


• 500 MB hard drive space


• Intel® Pentium® 1.0 GHz or equivalent


• DirectX 9 (or above) feature-compatible video and sound card


• 3D accelerated video card with 32 MB (or more) RAM
  Recommended video cards


• 256 MB RAM

Enables complete simulator functionality.

• Intel Pentium 3.0 GHz or equivalent


• 3D accelerated video card with 128 MB (or more) RAM
  Recommended video cards


• 1 GB RAM

Expansion Pack 5 is compatible only with Great Planes RealFlight G4 or above.