Wind-tunnel Investigation of Ground Effect on Wings with Flaps (1939)
NASA Technical Reports Server (NTRS) · leaf 22
N . A. C . A. Technical Note No. 705 Figs. 8,9 … Angle of attack, d ,deg. Angle of attack, a!,deg. Figure 8 .- Rectangular wing. Figure 9 .-Tapered wing; taper ratio, 5:1 . Effect of ground proximity on aerodynamic characteristics of N.A.C.A. 23012 wing with full-span 0.2556cw slotted flap.
NASA Technical Reports Server (NTRS)
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