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The loaded Centre of Gravity (CG) of an aeroplane is 713 mm aft of the datum. The mean aerodynamic chord lies between station 524 mm aft and 1706 mm aft.

The CG expressed as % MAC (mean aerodynamic chord) is…

  • A
    10%.
  • B
    60%.
  • C
    16%.
  • D
    41%.

MAC length = 1706 - 524 = 1182 mm

Distance between LE and CG = 713 - 524 = 189 mm

CG is 189 mm behind the LE, which is (189 / 1182) of the MAC = 0.16 = 16% MAC

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