Is there anyway way to get the FSX SDK gamepack, that is manually installed in Gmax by the user from The Delux version of FSX, to run in Blender
a converter that will convert a Blender file to an .mdl format?
I think the "FSX SDK gamepack" converts gmax modeling files into an .mdl format. FSX has a compiler that is then used to convert the .mdl to a .bgl format so the object can be displyed in the simulator itself.
It seems that there are a number of different types of .mdl formats other than that used by Microsoft Flight Simulator. (Valve has one for use in Half Life for example)
Below is an explanation copied from the net regarding FSX .mdl files.
Flight Simulator Airplane Model
Three-dimensional model of an airplane or other aircraft used by Microsoft Flight Simulator; standard model format used by multiple versions of the Flight Simulator series.