The Effects of Some Surface Irregularities on Wing Drag (1939)
NASA Technical Reports Server (NTRS) · leaf 31
I.A.O.A. Teohnleel Jot* So. 695 figs. 19,33 .0006 <?.0004 d 16 -2" 20 .0008 6 f 8 9 10 15 25 R , millions figure 19.- Increase In drag due to gaps between butted sheet*. Width of gape, 0.034 lac* (0.0004 obord); six * " . - .. (0.0004 chord)? six gape'on eaoh eurfae«i forward gaps, 8 porecat'of the… … for each chord position the total effect of all rivets and lapped joints back sf that position. Average chord, SO feet; wing area; 3,600 square feet; rivsts. l/e lach brasler head at 11/3 lash epaaelee pitch; thloxneee of lapped sheets, 0.040 lash; T ,380 s.p.h.; Oj, ,0.30, propulsive sf fid easy,…
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