This is the RealFlight Expansion Pack 4 from Great Planes. / / FEATURES: Adds 12 new airplanes, 4 new helicopters and 4 new flying sites / Compatible only with RealFlight G3 and above software / / INCLUDES: Airplanes; / Top Flite B-25J Mitchell Great Planes Yak 54 / Great Planes deHavilland Mosquito MiG 15 / ElectriFly Headwind B Python Biplane / Hughes H1 Racer Stits Sky Baby / Goldberg Tiger 2 Hobbico UpStar / Great Planes Revolver Great Planes Spitfire / / Helicopters; / HeliMax MX450 XS / CH-46 Sea Knight Micro Heli / Robinson R-22 / Thunder Tiger Mini Titan / / PhotoField Sites; / College Park PhotoField / 3D Kemp R/C Field / 3D Obstacle Course 5 / PhotoField-Tarmac (full scale airport) / / REQUIRES: Minimum System Requirements; / Realflight Generation 3 or above software / Minimum; / 500 MB hard drive space / Intel Pentium 1.0GHz or equivalent / DirectX 9 (or above) feature-compatible video and sound card / 3D accelerated video card with 32 MB (or more) RAM / 256 MB Ram / / Optimum System Requirements; / Intel Pentium 3.0GHz or equivalent / 3D accelerated video card with 128 MB (or more) RAM / 1 GB RAM / / jxs 7/23/07 / ir/jxs