No control of thrust??

I was messing around loading aircraft parameters for my Valkyret into FSEdit and checking the balance with the box drawing in AirWrench. [img][img]http://www.simviation.com/yabbuploads/V_Icon.jpg[/img][/img]The Mean Aerodynamic Chord would not resize when I changed the size of the wings, and the aircraft would not fly. Then I borrowed the AirFile from various aircraft, but loaded my own CFG. I actually got the aircraft flying well that evening, with small variations depending on which AirFile it flew with. But