Simviation Forums

I do not know if you all know MS FSX demo can play most of the Fx9 Aircraft though some have a sound problem the method of transfering is same only the file is \Microsoft Games\Microsoft Flight Simulator X Demo\SimObjects\aircraft
Try it and have fun till the real thing comes

That was a given from the initial release.

Typically, Flight Simulator offers full compatibility with the immediately preceding version.  In this case, FS-X, will run FS-9 models (those made to the FS9 SDKs) without (significant) change.  There may be some minor texture issues.

The basic flight dynamics are unchanged.  From a modelling standpoint, the changes are eye-candy (graphics/textures) and some more animation variables available for a modeller to tweak.

If your model flies terrible in FS9, it'll fly terrible in FS-X,  but it will look better...