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Question: an aircraft of weight 25 103 n has a...

Question details
An aircraft of weight 25 × 103 N has a projected frontal area of 29 m2 . It flies at a speed of 398
km/hr. When an engine of aircraft develops 788 kW, 85% of this power is used to overcome the drag
resistance of the frontal wing. Calculate the coefficient of lift and drag of aircraft. Take the density of
air to be 1.293 kg/m3.
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