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. An aircraft wing may be represented by a single horseshoe vortex of span 20 and circulation strength 25ms1. Calculate the downwash angle of

. An aircraft wing may be represented by a single horseshoe vortex of span 20 and circulation strength 25ms1. Calculate the downwash angle of a point 15 downstream of the bound vortex, in the plane of the vortex system on its centrelin The flight speed is 104 ms . (Answer: 0.4830).

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