I recently felt like playing San Andreas again so I reinstalled it and downloaded a few mods for it some of which are planes. I installed them, one at a time, using SAMI(none of the modded planes come with any handling lines etc, just the .txt and .dff). My problem arises when I try and replace a plane by a modded one that was not made for that plane (e.g. replacing the default dodo with a jet fighter that was supposed to replace the hydra). I can recall doing this sort of thing in the past but each time I try either the game crashes or freezes on load or when I try to enter the plane it crashes. Can anybody shed some light on this predicament and possibly a solution?