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Thread: Doubts to make an helicopter

  1. #1

    Join Date
    Oct 2018
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    1

    Doubts to make an helicopter

    Hello, I'm doing a helicopter for two persons with a friend, but I do not know how to calculate through the power of the engine, the performance of the propellers depending on his radius.

    In short, what I want are the two formulas that relate these two variables that I need to make a table testing with different engines and different measures of the propellers (apart also if it is possible to also take into account the number of propellers).

    I do not know if I explained well...

  2. #2
    FlyingRon's Avatar
    Join Date
    Aug 2011
    Location
    NC26 (Catawba, NC)
    Posts
    2,050
    Helicopters don't typically have "propellers." They have rotors and they are more involved than just providing vertical thrust. I think you need some basic research before you start commiting to a design. There are a number of helicopter theory books out there. You might find this book a useful start: https://www.amazon.com/Ultralight-He...a-569221934145

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