Charts for estimating downwash behind rectangular, trapezoidal, and triangular wings at supersonic speeds

Rudolph C. Haefeli, Harold Mirels, John L. Cummings
Aug 1950

Charts are presented for estimating the downwash behind wings in a supersonic stream. The wing plan forms for which computations are made include rectangular wings with reduced aspect ratios (cotangent of Mach angle times aspect ratio) of 2, 4, 6, and 12; trapezoidal wings with reduced aspect ratios ranging from 2 to 12.8 and taper ratios of one-half and one-quarter; and triangular wings with reduced aspect ratios of 8 and 12. All the wings have supersonic leading and trailing edges.

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