Thanks Mohr.. I actually have Perkins and Hage and it only confused the issue some more. On page 10 they have a diagram of the summation of moments and they show the CG aft of the wing lift. They also show a vertical (up) component of lift from the tail, and a postive (or nose up) moment about...
Ok guys and gals..I graduated 15 years ago and remember very little from Engineering School, so go easy on me. I'm doing a little light reading for fun and am getting very confused by something. I understand Aerodynamic center (Ac - as a convenience) and Center of Pressure (Cp - moves fwd as...
