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What’s the best way to correct elevator horn ribs misalignment?
In S-21 TECH QUESTIONS
Do the Rudder and VS hinge bushings typically need to be reamed after being pressed in?
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What is the ovality tolerance on pulled rivet holes?
In GENERAL TOPICS
m.whiting
Aug 05, 2020
Thanks, Ryan.
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Drill spar for rudder horn mount tube
In S-21 TECH QUESTIONS
m.whiting
Aug 04, 2020
I ended up doing pretty much the same. I drilled the top hole first and then bolted the mount tube. I tried to clamp the bottom, but that powder coat is so slippery on the aluminum that it really didn’t stay in position well so my wife and I just held it as parallel to the spar as we could and drilled it. I used the #11 drill since that was in the table as you mentioned. I don’t think this is a critical part alignment-wise as it just holds the rudder horn and as long as it ends up close to horizontal I can’t see it being an issue. Now that I think of it, I don’t recall the text manual saying to install the rudder horn, but I assume it is done now since it is called out in the parts diagram. I’m a little cautious just starting out and probably got spoiled by taking the Sportair Van’s builder workshop as the Van’s manual pretty much called out every single step so when I see something “missing“ now I tend to check and recheck. I’m sure this fades as familiarity with the RANS manual style increases. I am complicating things by priming parts and that bit me yesterday when I was transferring drilling the ribs. The drill broke through a little faster than I expected and hit the cleco on the opposite side. This pushed the drill to the side and elongated the hole somewhat. It was the last hole at the rear edge of the rib so I don’t think it is of any structural consequence and it will be easily covered by the rivet. I will check AC 43.13, but I think it is fine to just rivet as is. Had the other side been riveted already, that would not have happened. Yes, just starting out. Picked up the kit July 13th and had to build a work table and now waiting on spray gun and related parts. I broke my leg in May right as I was getting my shop finalized. I got my compressed air system installed right before my accident, but did not get my work table built, storage shelves build, etc. so that has slowed my start a little. And I will be a slow builder as I am a perfectionist by nature and that always slows things down. 😁
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This Can’t be right
In S-21 TECH QUESTIONS
This Can’t be right
In S-21 TECH QUESTIONS

m.whiting

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