Gysbreght
As stated by me before VMCG and VMCA are not directly linked. Common factor is the thrust that causes yaw. Just as 5% of banks allows you to control at lesser speed in the air, runway traction allows control at even lesser speed when on ground. You will notice this in SIM during EFATO as you rotate you need more rudder to keep it straight as the traction disappears. Since they are not linked I shouldn't say VMCA cannot be less than VMCG. I suppose you will have to see the figures for a particular aircraft. Presently I only have access to A320 speeds. In A320 VMCA is higher than VMCG by at least .5KT almost same.
Last edited by vilas; 18th May 2014 at 05:52.