RCU Forums - View Single Post - WARNING - Goldwing Sbach 342 89inch carbon version
Old 04-11-2017, 04:17 PM
  #11  
ahicks
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Join Date: Aug 2008
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To build a wing that will resist the effects of flutter is kinda like attempting to build a crash resistant plane. You quickly outweigh any advantages gained with extra strength with extra mass, which only contributes to the devastation on impact. Goldwing builds extremely light weight air frames - that are not designed to be forgiving when things go wrong. There are much heavier designs available if that's what you're looking for.

Agree with kmeyers. The linkage setup does not offer the full strength/flutter resistance that might be available from your servos. Even if it were not for that, servo resolution suffers as well. For instance, if you had used the hole in the aileron horn furthest from the control surface (as in one of the 3 pics you show), and maybe came in a hole or 2 on the servo arm, my bet is you would have the same amount of control surface throw, with much better servo resolution, and a big increase in servo strength/flutter resistance. In other words, you need to use maximum servo rotation available to move the control surface the amount you want (on high rates). To set up linkage like you show, you end up with way to much throw, which you then must cut back using end point adjustments - that's a bad plan!