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R-913, R-901 which is on top?

seattleworm

Well Known Member
Sponsor
I am having a bit hard time to figure out which one is on top (out most), the counter balance skin R-913 or the rudder skin R-901? From the drawing, it looks like the rudder skin should be on top of the counter balance skin, but the rivet call out indicates differently (AN426AD3-4, All R-913 counterbalance skin to R-901 skin to R-902 spar rivets). It probably doesn't matter which one is the out most skin, but just want to make sure. Thanks!

Shawn
________________________
RV-7 Empennage
HS - complete
VS - complete
Rudder - in work
Wing - ordered
 
Yep, What Arnie said.
I've seen pics of some guys who did the opposite though.
Use a file to knock the corners off the aft and bottom outside edges of the counterbalance skin. I didn't on my rudder but did on my elevators and it does help the transition.
 
Thanks!

That is what I thought, but was sure. Thanks for helping me confirm this. Yeah, I have seen people build either way, that just confused me. But I think it won't make much difference structurally. I will build with the rudder skin outside of the counter balance skin.

Shawn
_____________________________
RV-7
Empennage in work
Wings ordered
 
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