[NSRCA-discussion] Control surface/linkage setup

[Michael Cohen]

I have a question for the list about control surface/linkage setup.  I remember a K-factor article which mentioned making the servo arm is as close to a perfect 90 degrees as possible at neutral.  This is what the little 1-2-3-4 on the stock plastic servo arms are for.  You simply rotate the arm until 90 degrees is achieved.  However, with aftermarket heavy duty plastic or metal arms, is there any other solution other than sub-trim?  I am concerned about the “stock” arms deflection under load and like to use the aftermarket products, but on some servos on my airplane, this leads to a lot of sub-trim, which is also not preferable.  Thoughts?
 
Mike Cohen
D4 		 	   		  
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