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The Effects of Some Surface Irregularities on Wing Drag (1939)
NASA Technical Reports Server (NTRS) · leaf 28
H.A.C.A. Technical Hote No.. 695 Figs. 16, 31 .0016 .0013 :.0008 .0004 30 15 30 35 35 10 Percent chord Figure 16. - Increase in drag due to forward movement of the transition point. Chord, 5 feet 0L , 0.15; R , 10,300,000. … Forward limit of roughness, percentage chord Figure 31. - Variation of drag due to roughness with forward limit of roughened portion. Ohord, 5 feet; CL , 0.15,- R , 10,300,000; c , ohord; k , grain else.NASA Technical Reports Server (NTRS)
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