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Aerospace Drag coefficient and power required!need help

  1. Aug 19, 2009 #1

    i need to calculate the drag coefficient of a rotor bade(with two blade).infact i need to calculate the torque by drag,then power required for rotate that rotor on a fixed test stand.
    who knows about what formula or chart, diagrams...

    thanks in regards
  2. jcsd
  3. Aug 19, 2009 #2
    I would suggest looking through a book on helicopter aerodynamics. You might find something of use inside of it....

    Then you can repost any questions you have about the equations in said book.
    Last edited: Aug 19, 2009
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