Comparing Airfoils

EPPLER 642 AIRFOIL

AH 79-K-143/18

EPPLER 642 AIRFOIL AH 79-K-143/18
Thickness (%) 15.067 14.270
Camber (%) 3.112 2.867
Trailing Edge Angle (%) 11.256 13.603
Lower Surface Flatness 7.049 7.200
Leading Edge Radius (%) 2.450 2.234
Maximum Lift (CL) 1.303 1.220
Maximum Lift Angle-of-Attack (deg) 11.000 14.000
Maximum Lift-to-drag (L/D) 41.557 42.929
Lift at Maximum Lift-to-drag 1.039 0.855
Angle-of-Attack for Maximum Lift-to-drag (L/D) 7.500 5.000