Tests of NACA 0009, 0012, and 0018 Airfoils in the Full-Scale Tunnel (1939)
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36'square and round- 6'x36'square and i ed tips. Average R: 3.4xlO6 rounded Zips. Average 71: 3.4 x 10 Average test velocity: 81 f.p.s. Average test velocity: 87 f.p.s. ■A -.4 .2 Corrected for wind-tunnel effects Corrected for wind- tunnel effects. <J CD > o 24 0 4 8 12 16 20 0 4 6 12 16 20 24… … Average test velocity: 87 f.p.s.- -4 > o 1.0 1.2 O .2 .4 .6 .8 Corrected for wind-tunnel effects. J: o Lift coefficient, c. -4 To 4 8 12 16 20 24 Angle of attack, ct ,deg. -Section characteristics of the N. A. C. A. 0009,0012, and 0018 airfoils at £ Figure 10. Reynolds Number of 3,400,000. Figure…
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