The wing surface is the surface of the wing , generating lift force .Not to be confused with frontal surface.

When the wing surface increases the Lift force increases. By modifying the surface plane or boat rule power according to the relative velocity of the fluid.

The wing area is also involved in the frictional resistance generated by its surface in contact with the fluid.

With Mecaflux

  you enter the size of the profile airfoil , and the wing area is actualized

The cd (coefficient of drag) and the Cl (coefficient of lift) are selected versus the incidence angle and the number of reynolds to calculate the drag force and the lift force