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  1. C

    Airflow debate

    Yes, I do mean circumference. I don't think my brain had woken up properly this morning. For a hex/octocopter the circle would be only slightly more or even less. I'm not basing any of this on anything scientific just curious about binding something different. My thought was if the thrust is...
  2. C

    Airflow debate

    I plan to build myself a quad at some point. I too was pondering the torus shape. Not for the prop wash but I was wondering if straight and would flex more than a torus and maybe have better stability. It obviously adds more weight to the design tho as the diameter of the ring is greater than...
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