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A symmetric biplane having forward / aft wedge angles 2° is placed in supersonic

flow as shown below.
Estimate the lift and drag of this configuration by using the idea of method of
characteristics. (Recall v±0=const on different direction i.e left or right running waves)
%3D
The wave pattern on the biplane is shown in dashed lines.
(v,0)»=(28,0)

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Answer:

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