g, and this assumption probably breaks down when the gap becomes as small as one half of the chord." Glauert •also states in reference 6, "It -will be noticed that the calculated values are in good agreement with the observed values for positive angles of stagger, but 740 .60 .BO 1.00 1.20 1.40… … 1.80 2.00 1.60 1.40 1.20 LOO 0.6 0.8 Piotoi 11—Variation of J& with gap/chord. It is fortunate that the interest in low gap/chord against CL, of which figure 8 has been given as an values and negative stagger is academic at present. example. This uncertainty is, in general, of the order There is…
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