Ch 8 - MAC And CofG Position

Question 1

Mean Aerodynamic Chord

Answer 1

An imaginary rectangular wing with the same pitching characteristics of the swept back wing.

• Leading Edge (LeMAC)
• Trailing Edge (TeMAC)

LeMAC = 0% MAC
TeMAC = 100% MAC

MAC remains constant

Question 2

CofG as a %MAC

Answer 2

CofG%MAC = (CG Arm - LeMAC / MAC) x 100
%

%MAC = (LeMAC to CG/MAC) x 100