Wind-tunnel Investigation of Ground Effect on Wings with Flaps (1939)
NASA Technical Reports Server (NTRS) · leaf 20
N.A. C. A. Technical Note No. 705 Figs. 4,5 … Angle of attack, of ,deg\ Angle of attack , d , deg. Figure 4. - Rectangular wing'. Figure 5.- Tapered wing; taper ratio, 5:1. Effect of ground proximity on aerodynamic characteristics of N.A.C.A. 23012 wing.
NASA Technical Reports Server (NTRS)
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