The reason I ask is that there are both ally and axis planes that use turobosuperchargers and such that would make the air file so much more realistic. Just j hope we can do that and I would love to go back to some of the planes I made and make all that work..... The absence of the turbosupercharger is the main reason I stopped making the P47 N. I have the entire exterior model done, but lost interest since I could not model the airfile correctly.....