Application for calculation of mean aerodynamic chord of arbitrary wing planform

This paper presents an application for the calculation of the mean aerodynamic chord (MAC) of an arbitrary wing planform. The MAC is most often used in the aerodynamic and stability analysis. The calculation uses a method where the MAC is defined by an array of chords. The MAC of each chord is computed as separated trapezoidal wing and then, the final MAC is calculated. This approach may find the accurate solution of complicated wing planforms, including elliptical, in the regime of low subsonic speeds. The first section describes the MAC and essential equations used for the computation. Finally, the application and two various examples of calculation are illustrated and discussed.