Dumb question time. If starting from scratch, and not using Air Wrench, how do you start a new air file? What program creates an “*.air” file? Also, there are so many variables inside an air file, where do you get such data? I have an original copy of a “North American Aviation Estimated Performance Data for Navy Model T-28B blah, blah ...” document. It's filled with much priceless engineering data and flight dynamics information for that plane, but it has nowhere near the amount of data items that are found in an FS air file! I know what drag and lift coefficients are, and datums and moments, but you can't find that stuff on the “Interwebs” for any given plane, let a lone the “Cl_p Roll Moment – Roll Rate (Damping)”! Oh, it's -2250 for the Alphasim GB R1! Where does one start?

:isadizzy:

- Paul