A modern medium size commercial jet plane has a wing span of L = 30 m and

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A modern medium size commercial jet plane has a wing span of L = 30 m and a mean chord length of K = 4 m. Its lift coefficient is cl = 0.83 at its cruising angle of attack α ∼ 2. What is the lift force generated by the airplane wings when cruising at v ≅ 800 km/h? While cruising, the engines exert a thrust of ∼80 kN. Estimate the wings’ drag coefficient cd and the lift to drag ratio.

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The Physics of Energy

ISBN: 978-1107016651

1st edition

Authors: Robert L. Jaffe, Washington Taylor

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