The planned take-off mass of a turbojet aeroplane is 190 000 kg, with its centre of gravity located at 29 % MAC (Mean Aerodynamic Cord). Shortly prior to engine start, the local staff informs the flight crew that 4 000 kg must be unloaded from cargo 4 (23.89 m aft of the reference point).
Given:
Distance from reference point to leading edge: 14 m
Length of MAC = 4.6 m.
After the handling operation, the new centre of gravity location in % MAC will be:
31 %
25 %
33 %
27 %