Finite Wing Lift Slope
Convert a 2D airfoil lift-curve slope into a finite-wing slope using aspect ratio and span efficiency.
Finite-wing slope
4.79 1/rad
0.084 per degree
Reduction from 2D
23.8%
2D airfoil slope 6.28 1/rad
Downwash term
0.312
AR 8.0, e 0.80
Calculation breakdown
Finite span lowers lift-curve slope
Downwash makes the 3D wing line rise more slowly than the 2D airfoil line.
76% of 2D slope
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