701 trim adjustment

I set my trim to be level with the horizontal & elevator level. There does not seem to be enough nose up trim. I was curious where others set their trim tab. Thanks 

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Permalink Reply by John Marzulli on September 9, 2013 at 1:18pm

Have you reversed the elevator's trailing edge bend?

Permalink Reply by Joey Cirri on September 9, 2013 at 5:28pm

Checked again......is as per the plans

Permalink Reply by John Marzulli on September 11, 2013 at 2:48pm

Aha!

"Per Plans" works against the "nose-up" trim.

If you take some boards you can reverse the trim which will result in a more "nose up" condition for you.

Permalink Reply by Joey Cirri on September 11, 2013 at 4:29pm

Like slats per plans don't fit the wing !

Permalink Reply by Mason Bullard on September 16, 2013 at 1:50pm

Please elaborate or show some pics

Permalink Reply by Normand Lambert on September 9, 2013 at 10:33pm

Hi

Mine is adjusted downward from level to keep a nose up attitude.

So, when flying level, the trim trailing edge is LOW and pushes the nose of the airplane UP.

Not a big deal and erases some forces on the elevator that the pilot has to apply...

Norm

Permalink Reply by Don Herbel on September 10, 2013 at 1:13pm

The original plans called for the elevator trailing edge to bent up 15 degrees to compensate for light engines.  Zenith says to bend the trailing edge down so the top skin from the spar back is straight.  The Rotax 912S is heavy enough you need to do this.

Permalink Reply by Joey Cirri on September 10, 2013 at 1:34pm

That makes sense to me. I will do that on my next elevator!!!

Permalink Reply by Chumphol Sirinavin on September 16, 2013 at 1:21am

Or you can clamp over the trailing edge bend with 2 of 1"X2", and reverse the existing bend. Can do.

Champ

Permalink Reply by Normand Lambert on September 21, 2013 at 10:48am

Hi Joey,

The first thing to do would be to reverse the trailing edge bend on the elevator. It should face DOWN  so that the down force applied will raise the nose and help you. I did that .Easy fix

Do that and try again.

Norm

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