I am designing a small-scale propeller and i have managed to design on optimized geometry for the blade. However the blade pitch angle adjusts according to different flow speeds so i need to mount counterweight to maintain the balance of the blades. What i need to consider for the calculations? Let's say i know already the counterweight shape, mass, and mounting place.

  • $\begingroup$ What do you mean by small scale ? (diameter pitch rpm) $\endgroup$
    – user721108
    Sep 12, 2017 at 16:29
  • $\begingroup$ 40 cm overall diameter, 15 cm blade length, max rpm = 7000 $\endgroup$
    – george
    Sep 12, 2017 at 19:42
  • $\begingroup$ There are a lot of rc props well suited for those kind of power (2-3 hp) Why would you need variable pitch? $\endgroup$
    – user721108
    Sep 12, 2017 at 21:13
  • $\begingroup$ it is about a project i am carrying out $\endgroup$
    – george
    Sep 12, 2017 at 21:26
  • $\begingroup$ For sure, but does it need pitch reverse? Or are you aiming for constant rpm? Lack of informations about the specifications, to build a useful answer. Is it supposed to hover, or cruise at the highest possible speed? What kind of flying device is it? $\endgroup$
    – user721108
    Sep 12, 2017 at 21:35


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