I've discovered a new and annoying variation of this problem. I repainted one Dash 8 and downloaded another, both of which I inserted in the default Dash 8 file. They now appear as AI aircraft as I intended BUT ATC has somehow lost the "Dash 8" moniker and simply calls them "experimental." I know I heard ATC referring to "De Havilland Dash 8" in chatter prior to my making the changes.
I still have the old files backed up and I've checked the cfg files for all of them. They all havee "Dash 8-100" in the "ui_type=" line. I thought that was what controlled this.
Anyone have an idea what the heck I did?