RE: Seervo Arm Advice
Bubbagates - Thanks for advice. The blue loc-tite was my next issue, you answered it. The servo arm screws are metric threaded, I am using the JR8411's all around on both planes, all ball links.
Horizons description below. I will source the allen head version screws.
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For giant scale and precision competition airplanes, JRâ€™s DS8411 servos are the ultimate choice thanks to their high output torque and incredible accuracy and holding torque. To transfer all that available power to the servo arm, JRâ€™s DS8411 features a composite metal gear train that includes a combination of hard anodized hardened steeland brass gears that are virtually unstrippable. This improving accuracy, combination of metals gives a long, backlash-free gear life. In addition, ball bearing spacing on the output gear has been significantly widened, offering greater radial output play and further improving accuracy. 155 oz./in. torque.