Have been trying to find a Trans-Texas CV600 for 1960's AI use in FS2004. Have found textures for both the Texas International paint schemes but the only Trans-Texas Convair textures I can find are for the CalClassic CV240. This I have started using as a compromise in the absence of anything else. Only problem is changing the piston sound to a turboprop sound. This I foolishly thought was easy - go into the [GeneralEngineData] section in the aircraft.cfg file, change the engine_type= from 0 to 5 and yes, turboprop sound! Aircraft still taxies on to the runway but then just sits there. Changing the engine_type= back to 0 for piston sound and it will successfully take off and land as an AI aircraft. Have changed this back and forth 3 times now and each time the piston version works and the turbo version doesn't.
Any suggestions? Is there something else I need to play with in the aircraft.cfg? Or abandon this approach and repaint an existing CV600. Which with my limited painting skills will take me AGES!