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Wind-tunnel Investigation of Ground Effect on Wings with Flaps (1939)
NASA Technical Reports Server (NTRS) · leaf 21
Figs.6,7 N.A.C. A. Technical Note No 705 … Angle of attack , o£ , deg\ Angle of attack, oi ,deg\ Figure 7.-Tapered wing-; Figure 6. - Rectangular wing. taper ratio, 5:1. Effect of ground proximity on aerodynamic characteristics of N.A.C.A. 23012. wing with full-span 0.20cw split flap.NASA Technical Reports Server (NTRS)
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