SonexBuilders.net

Has anyone installed electric elevator trim on their Onex? If so, did you use a tab on the back of the elevator or cut a recessed one as on the VR6? I've installed the tab on the trailing edge of the elevator but I really don't care for the appearance. I asked Sonex and got the expected response (Dial a speed). I have it but I don't want to install it I want electric trim.

Thanks,
Sid

You will have very little use for electric elevator trim on a Onex. It isn't worth the time and work to put it in. I mounted the Sonex trim vertical on the front of the spar on the left so I can rotate it with my palm. I don't trim until at cruise altitude and speed. Then trim hands off. It varies a little depending on the amount of fuel you have. If you fly long enough to burn 4 or 5 gal. you may want to trim again. It only takes a couple of quarter turns. I don't trim on landing. The stick loads are so light you don't need it. Don't touch it again till the next flight. 350 hours and flying.

Thank you for your experience with this aircraft this is very helpful...

I think every airplane needs pitch trim. Any slight speed change and it usually needs to be re-trimmed. I tend to NOT re-trim for the pattern as I like the feedback vs airspeed. Its also safer on a go-around. I had a 'Dial a speed' or whatever they call it and just didn't like the idea. I put a small trim tab on the elevator and a lever on the cockpit. The first lever didn't work out. I couldn't get the friction just right and it was too sensitive. I also didn't care for the location. I moved it and went to a different lever. After a little adjusting, it works well. Its easy to find and quick to adjust.

Thanks for the reply. Good info...

Sid