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Tests in the Variable-Density Tunnel of Seven Tapered Wings Having N.A.C.A. 230 Mean Lines, Special Report (1937)
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r4 -2 28 32 -8 -4 0 4 8 /2 16 20 24 Lift coefficient CL Angle of attack, or (degrees) Figure 7.- Tapered N.A.C.A. 5-12-20 airfoil.NASA Technical Reports Server (NTRS)
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