Comparing Airfoils

MA409 (smoothed)

A18 (smoothed)

MA409 (smoothed) A18 (smoothed)
Thickness (%) 6.688 7.267
Camber (%) 3.322 3.833
Trailing Edge Angle (%) 11.053 23.535
Lower Surface Flatness 28.391 22.555
Leading Edge Radius (%) 1.740 1.893
Maximum Lift (CL) 0.984 1.124
Maximum Lift Angle-of-Attack (deg) 9.000 5.500
Maximum Lift-to-drag (L/D) 59.667 55.481
Lift at Maximum Lift-to-drag 0.822 1.016
Angle-of-Attack for Maximum Lift-to-drag (L/D) 3.000 4.500