e zero lift direc- a revision of the theory and special tests. tions in the upper and lower wing, and not from the chord lines. The decalage will be considered positive n. BIPLANES WITH DECALAGE when the zero lift direction lines intersect forward of Decalage has been defined as the acute angle… … Angle of decalage, degrees, 6 .32. Figure 16.—Effect of decalage on Ki. From Munfs tests (reference 8). 740 .60 .80 1.00 1.20 1.40 1.60 1.80 2.00 Gap According to Munk, equation (12), the effect ol Chord Figure U— Relative value of Hunk's factor Bo (1+af). From table I, N.A.C.A. decalage is to…
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