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Aerodynamics What makes 'em fly? Designs & technology related to aerodynamics.

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Old 01-07-2007, 08:32 PM   #1 (permalink)
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Default Servo size calculator....

Calling all you brains...

I am going to make a servo size calculator web page. Anyone know the formula?

Needs to include: plane wieght, speed, and control surface cord and length.
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Old 01-07-2007, 08:56 PM   #2 (permalink)
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Default Re: Servo size calculator....

Radio South had one on there website a while back.

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Old 01-07-2007, 09:02 PM   #3 (permalink)
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Default Re: Servo size calculator....

just got this from http://www.csd.net/~cgadd/eflight/ca...vo.htm#formula


Torque(oz-in) = 8.5E-6 * ( C2 V2 L sin(S1) tan(S1) / tan(S2)]
  • Where:
  • C = Control surface chord in cm
  • L = Control surface length in cm
  • V = Speed in MPH
  • S1 = Max control surface deflection in degrees
  • S2 = Max servo deflection in degrees
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