Linkage Safety

May 23, 2011 No Comments by

Now, let’s talk about proper linkage setup. Many advanced airplanes take advantage of ball-links to attach given pushrods to a servo arm, control horn, etc. Using ball-links in these areas guarantees to improve linkage geometry and allows a given surface to move freely.  While using a clevis works if servo and linkage geometry are correct, if there is any misalignment whatsoever, using ball-links may be needed!

Next, let’s talk about my personal setup. On my 35% and 40% aerobatic models, I always use Hangar 9 4-40 Titanium Pro-Links and Du-bro 4-40 Heavy Duty Ball-Links. With that being said, I am often weary that a given ball-link can become undone over time and “pop off” the ball that it snaps onto. Resulting, I use a washer between the 4-40 socket head bolt, the ball-link, the ball-link spacer, and the given lever (either a servo arm, throttle arm that is secured to the carburetor, etc). Doing this will always leave me with the “peace of mind” I need to focus on one thing, flying!

Editors Blogs, John Glezellis

About the author

Model Airplane News is the #1 RC aircraft magazine. More readers trust Model Airplane News to provide them with the latest information and newest product reviews than any other RC publication. Published by Air Age Media, the largest multi-media company dedicated to enthusiasts of radio-control planes, helicopters, cars and boats, aviation and diecast collecting, Model Airplane News is distributed around the world.
No Responses to “Linkage Safety”
Copyright © 2014 Air Age Media. All rights reserved.