The Right Way to Set Up Servos

The Right Way to Set Up Servos

Without smooth, non-binding control-surface movements, our planes would be nearly impossible to direct. Linkage systems, including the servo, servo arm, pushrod and control horn, are often overlooked, but they are the keys to smooth, strong, equal control-surface deflections. Take the time to install the linkages properly and securely to guarantee control surfaces that work properly for the life of the plane. Let’s look at these vital links and see where we can improve them, starting with the servo.


When the servo arm travel is not parallel to the pushrod, you have ...

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Updated: December 31, 2018 — 3:48 PM


  1. Thanks. This is very helpful!

  2. A distinction between pressure and force will help to understand this article; the author uses “pressure” when “force” is the proper word.

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