Thursday, February 13, 2020

Section 36 Aileron and Elevator Systems

RV14 Build January & February 

Aileron and Elevator Systems

I thought I could install the push rods before I joined the empennage and the fuselage together to I prepped everything. Once I saw how I was going to have to be in the airplane to do some of the riveting I didn't want to have the push rods in the way so I didn't install them, but I did install some of the brackets.

I taped the end of the tube and poured primer down them to prime the insides.

It worked really well, left a heavy coat though, if weight is a concern maybe not the best method. I wanted to anodize them but I couldn't find a shop that would do small work.

Push rod tubes outside primed.

The template that came in the plans was a little small for the tubes, probably because the primer was too thick, so I used a black piece of paper marked the diameter and divided by 6 to find the drill holes.

Drilled the tubes

Match Drilled the caps

installed the pushrod end bearings to the measurements in the plans.

Had a little trouble with the tightness of the fit because the primer inside the tubes was too thick. Ran to harbor frieght got a heat gun and I was able to pull the parts apart again, sanded down the primer, LIGHTLY sprayed self etching on the metal and then reinstalled the end caps and the push rod bearings.

I was going to install the pushrods with the trim motor and bracket but them I was worried the rod would be in the way during mating the empennage to fuselage. But I thought I could install the bracket and motors anyway......wrong.

The plans have you install the pushrod on the bracket then inset the rod through the bulkhead and install the bracket.

With the empennage and fuselage together you can't get the pushrods through the bulckhead the opposite was the plans intended because there is a cross members in the fuselage that blocks it. So I have to pull the pitch trim motor and bracket to install the push rods. What I tried to do to save me work was a waste and added work! Dang it, oh well.

Aileron and Elevator Systems 10 Hours

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