Isn't the relationship between weight and angle of attack at any given EAS also a factor?
Let's suppose the lighter aircraft has 4 degees of alpha and a heavier one has 8 degrees. If they both hit an instantaneous upgust that increases alpha by 2 gegrees, the light aircraft experiences 1.5 g (due to 6 deg / 4 deg) while the heavy one only experiences 1.25 (due to 10 deg / 8 deg).
All of the above ignores the effects of different inertias of course and assumes that zero lift alpha = zero degrees (to keep the arithmetic simple).
Last edited by Keith.Williams.; 2nd Nov 2008 at 18:47.