Comparing Airfoils

HQ 3.5/8 AIRFOIL

A18 (smoothed)

HQ 3.5/8 AIRFOIL A18 (smoothed)
Thickness (%) 7.966 7.267
Camber (%) 3.497 3.833
Trailing Edge Angle (%) 6.058 23.535
Lower Surface Flatness 35.359 22.555
Leading Edge Radius (%) 1.757 1.893
Maximum Lift (CL) 1.204 1.124
Maximum Lift Angle-of-Attack (deg) 6.000 5.500
Maximum Lift-to-drag (L/D) 66.893 55.481
Lift at Maximum Lift-to-drag 0.872 1.016
Angle-of-Attack for Maximum Lift-to-drag (L/D) 3.000 4.500