C of G and pitch stability
Apologies for the simplicity of the question:
Why is an aircraft more pitch stable with a forward C of G than with an aft C of G? Accordingly, why are required control forces higher for the forward C of G.
My incorrect model is that the elevator exerts a force over a distance to effect a torque with the CofG position being the pivot. With an aft CofG, this torque is less due to a shorter arm. Conversely, with a forward CofG, the elevator has a much longer arm and so greater torque is available for a given control movement? Reality is the complete opposite of this and any explanation would be much appreciated.
Many thanks.
Last edited by shlittlenellie; 11th November 2005 at 18:15.