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  • jigarmech

    Member • Nov 5, 2011

    T=[( η *p)^2*2*π*R^2*ρ]^0.3333

    where, T = Thrust (in newtons)

    η= Propeller hover efficiency

    = 0.7 to 0.8; is typically for uninstalled low pitch propellers

    P= shaft power

    = voltage*current*motor efficiency (in watts)

    π =3.14159

    R= Propeller radius (in metres)

    ρ= air density

    = 1.22 kg/m3


    try this equation and hope it helps you.
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