Split pin position on clevis pin

Here is the elevator trim tab, and you see it's connected with a clevis pin. Originally I had the split pin facing the other direction, and was worried that as the trim tab went down that the pin may get caught against the edge of the elevator and get pushed out.

Right now it seems like a non-issue since it's facing the other way, but what if it works its way around?

Possible solutions?

1. Widen the hole so that cannot reasonably happen.

2. Tape the pin to the rod

3. Use safety wire instead of split pin 

Has anyone put any thought into this or have any experience? Is this a legitimate concern?

Views: 592

▶ Reply to This

Replies to This Discussion

Permalink Reply by Mark Stratman on November 7, 2016 at 3:18pm

To be clearer, here's an illustration

Permalink Reply by Earnest Fontenot on November 7, 2016 at 5:28pm

Mark,

That is or should be a cotter pin (split pin as you call it) that goes through the clevis pin hole. The cotter pin should be installed where both of the legs of the split go through the hole in the clevis pin. The legs are then bent back around each side of the clevis pin so that the cotter pin cannot come out.

Permalink Reply by Mark Stratman on November 7, 2016 at 5:35pm

I see now, thank you!  I knew I was doing something wrong, and clearly haven't worked with anything utilizing cotter pins before.

A quick Google image search painted a perfect picture of what you're describing (e.g. http://aviationmiscmanuals.tpub.com/TM-1-1500-204-23-6/img/TM-1-150...)

Thanks again.

Permalink Reply by Gary Welch on November 8, 2016 at 1:49pm
You may want to check out the EAA video on this subject I think they have more than one on using cotter pins.
Permalink Reply by Daniel Niendorff on November 10, 2016 at 2:29pm
Permalink Reply by Don Morrisey on November 22, 2016 at 6:42pm

All of these EAA Hints for Homebuilder Videos are excellent, they started these back in 2005 or 2006 and  now there are quite a number of them, all very informative.

RSS

New from Zenith:

Zenith Planes For Sale 
  

Classified listing for buying or selling your Zenith building or flying related stuff...

Custom Instrument Panels
for your Zenith:

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, Dynon and Garmin avionics, and more.

Zenith Homecoming Tee:

Zenair Floats

Flying On Your Own Wings:
 A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

Aircraft Insurance:

 
 

West Coast USA:

 
Pro Builder Assistance:

 

Transition training:

Lavion Aero

K&S Aviation Services

Aircraft Spruce & Specialty for all your building and pilot supplies!

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

© 2024   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service