Comparing Airfoils

FX 77-W-270S

FX 69-274

FX 77-W-270S FX 69-274
Thickness (%) 27.009 27.366
Camber (%) 4.306 3.172
Trailing Edge Angle (%) 54.656 47.336
Lower Surface Flatness 3.642 3.115
Leading Edge Radius (%) 6.132 5.929
Maximum Lift (CL) 1.265 1.342
Maximum Lift Angle-of-Attack (deg) 15.000 15.000
Maximum Lift-to-drag (L/D) 13.056 21.876
Lift at Maximum Lift-to-drag 1.265 1.072
Angle-of-Attack for Maximum Lift-to-drag (L/D) 15.000 12.000