CurtD

My Feedback: (1)

I don't disagree that at extreme angles it doesn't work properly but if you'll look more closely at the geometry of the drawing (it's more complex than you may realize) you will see that the lines will remain EXACTLY the same length through 90 degrees of total servo angular movement (45 each side of neutral). This exact setup (2" servo arm / 3" rudder horn) is in my Pitts and does not tighten or loosen even with the servo at its full travel position. It WILL work properly this way unless you want to go more than 90 deg total travel (I never do that). The other factor that determines total allowable angular movement is the ratio of the smaller to the larger horn.

I stand by my statement that to say it won't work unless the arms are equal length is wrong.