We’ve all seen and heard it, the sound of control surface flutter. Flutter can be destructive to an airframe, and this problem all boils down to using suitable building techniques. It is absolutely mandatory that the hinges on an aircraft be installed properly. If hinges are not installed correctly, they can bind with one another, making it difficult for the servo to move the control surface.
In turn, the servo may not be able to center the control surface consistently in flight. The pilot will feel like the airplane isn’t locked in and requires constant trim changes. If hinges are installed with a fairly large gap between the surfaces, flutter can develop, which can quickly damage the airframe. Here are some tips that could save your airplane…
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