Comparing Airfoils

FX 78-K-150/20

AH 81-K-144/17

FX 78-K-150/20 AH 81-K-144/17
Thickness (%) 15.075 14.460
Camber (%) 4.330 4.235
Trailing Edge Angle (%) 13.770 13.117
Lower Surface Flatness 9.391 10.287
Leading Edge Radius (%) 2.146 2.262
Maximum Lift (CL) 1.175 1.272
Maximum Lift Angle-of-Attack (deg) 12.500 13.500
Maximum Lift-to-drag (L/D) 31.996 40.044
Lift at Maximum Lift-to-drag 0.871 0.981
Angle-of-Attack for Maximum Lift-to-drag (L/D) 5.500 6.500