I dont want to install SP on my PC, I just want to download .obj 3D model file directly from this model site, and then, I will translate the format from .obj to .flt with software Creator of Presagis, and then, I can attach more accurate flight dynamic model developed by software FlightSim of Presagis to this model and fly it in computer generated forces software Stage of Presagis, it will provide me real air combat simulation more than SP could.