Comparing Airfoils

AH 81-131

AH 79-K-135/20 B

AH 81-131 AH 79-K-135/20 B
Thickness (%) 13.049 13.486
Camber (%) 2.822 3.052
Trailing Edge Angle (%) 9.004 12.757
Lower Surface Flatness 8.120 8.532
Leading Edge Radius (%) 1.987 2.150
Maximum Lift (CL) 0.812 1.145
Maximum Lift Angle-of-Attack (deg) 13.000 12.500
Maximum Lift-to-drag (L/D) 29.725 38.690
Lift at Maximum Lift-to-drag 0.786 0.711
Angle-of-Attack for Maximum Lift-to-drag (L/D) 8.500 4.000