RE: Longitudinal stability analysis
Yeah, defining a tailplane volume coefficient first and working from that is one way to do it. I didn't quite do it that way but what i did was to construct a spread sheet in Excel using all teh relevant equations. The beauty of this is that you can change one parameter, and then excel updates all the equations etc etc so that you can immediatly see the effect. Anyway you soon converge on a solution to the problem. Saves recalculating everything by hand when you change the moment arm for example!
m