Appendix EAerofoil Data

Data Courtesy of I. R. Abbott and A. E. Von Doenhoff, Theory of Wing Sections.

NACA 4412

(Stations and ordinates given in per cent of aerofoil chord)

Upper surface Lower surface
Station Ordinate Station Ordinate
0 0 0 −0
1.25 2.44 1.25 −1.43
2.5 3.39 2.5 −1.95
5.0 4.73 5.0 −2.49
7.5 5.76 7.5 −2.74
10 6.59 10 −2.86
15 7.89 15 −2.88
20 8.80 20 −2.74
25 9.41 25 −2.50
30 9.76 30 −2.26
40 9.80 40 −1.80
50 9.19 50 −1.40
60 8.14 60 −1.00
70 6.69 70 −0.65
80 4.89 80 −0.39
90 2.71 90 −0.22
95 1.47 95 −0.16
100 (0.13) 100 (−0.13)
100 100 0

L.E. radius: 1.58

Slope of radius through L.E.: 0.20

NACA 4415

(Stations and ordinates given in per cent of aerofoil chord)

Upper surface Lower surface
Station Ordinate Station Ordinate
0 0 0
1.25 3.07 1.25 −1.79
2.5 4.17 2.5 −2.48
5.0 5.74 5.0 −3.27
7.5 6.91 7.5 −3.71
10 7.84 10 −3.98
15 9.27 15 −4.18
20 10.25 20 −4.15
25 10.92 25 −3.98
30 11.25 30 −3.75
40 11.25 40 −3.25
50 10.53 50 −2.72
60 9.30 60 −2.14
70 7.63 70 −1.55
80 5.55 80 −1.03
90 3.08 90 −0.57
95 1.67 95 −0.36
100 (0.16) 100 (−0.16)
100 100 0

L.E. radius: 2.48

Slope of radius through L.E.: 0.20

NACA 23012

(Stations and ordinates given in per cent of aerofoil chord)

Upper surface Lower surface
Station Ordinate Station Ordinate
0 0 0
1.25 2.67 1.25 −1.23
2.5 3.61 2.5 −1.71
5.0 4.91 5.0 −2.26
7.5 5.80 7.5 −2.61
10 6.43 10 −2.92
15 7.19 15 −3.50
20

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