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Find the wing reference area if wing loading is 85 lb/ft^2 and aircraft has gross weight of 10000 lb.(a) 117.64 ft^2(b) 112.65 ft^2(c) 152 ft^2(d) 125 ft^2The question was posed to me during an interview.Origin of the question is Geometry Sizing topic in division Initial Sizing of Aircraft Design

Answer» CORRECT choice is (a) 117.64 ft^2

To explain I WOULD say: Given, take-off GROSS weight is W0 = 10000 LB, wing loading W.L. = 85 lb/ft^2

W.L. = W0/area, area = W0/ W.L. = 10000/85 = 117.64 ft^2.


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