I'm in an aerodynamics class, and I have this canard configuration I'm trying to figure out for a final exam. I need to find the sum of the moment about the center of gravity. I may cannot be helped without the drawing being posted. So far this is what i have: Mcg = Mac - (lcg + lw)Lw + (lc-lcg)Lc CMcg=-aw*alpha(hn-hcg) + Cmo Each letter after the first letter (ie Mcg) is a subscript. So cg would be the subscript. I just dont know how to do that on here. Anyway, my remaining equations which I can't seem to figure out is to derive expressions for hn and Cmo Can anyone possibly help me with this or is more info needed?