Originally Posted by haughtney1
Ok clear something up for me here......VMCG is based on aerodynamic controls only?..or other factors as well..such as nose wheel steering..differential braking etc...
Generally based on the use of aero controls only. NWS is usually off for the Vmcg demo (to simulate wet runway conditions, somewhat, and to allow for possible MEL relief too) and braking would cause takeoff distance issues, so not allowed.