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Physics

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how do you figure out take off speed?

  • Physics -

    I assume you are refering to an airplane

    Given
    1-a given airplane weight at takeoff, W, pounds
    2-a given wing lift coefficient, C(l), a function of the angle of attack of the wing
    3-the wing planform area, S, square feet and
    4-the density of air, µ, lbs./ft.^3,

    From L = W = µ(S)V^2(Cl) where V = the airplane's forward velocity,

    V = sqrt[2W/(µ)S(Cl))]

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