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  #21  
Old 05-14-2018, 12:11 PM
SgtZim SgtZim is offline
 
Join Date: May 2015
Location: Crittenden, ky
Posts: 173
Default wondering about this too

I know this is an older post, but I'm now doing my fairings and I just match drilled those holes between the fuselage skin and wing.

My issue/question is about the fit of the overlapping skins. my fuselage skin hangs about 1/8" lower than the wing bottom, and clecoing the skins together of course causes major rippling because of the curved surface. I'm thinking about adding a filler strip between the skins just to make a clean joint, but if it is indeed structural - that would not be the best solution.

Also, if it is structural - the whole method of drilling those holes is very poor: You pre-mark lines along the wing skin and then you are supposed to take a stab at finding those holes in the wing by measuring off of those lines and back 3". Far from a good match drill. I had just enough room to squeeze in a hole duplicator, and made good matching holes, but the geometry of the two skins makes pretty bad ripples. Kind of a tradeoff between structure and aerodynamics for me anyway.

I sent my question in to Van's this am, I'll update when I get their comments.

picture of my wing/fuselage joint.

http://www.facebook.com/BZsRVproject...type=3&theater
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RV-8 slow build
IO360-M1B Sensenich fixed pitch
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  #22  
Old 05-27-2018, 11:09 AM
SgtZim SgtZim is offline
 
Join Date: May 2015
Location: Crittenden, ky
Posts: 173
Default

I was told that some pillowing is normal there, and some can be allieved by breaking the edge of the lower fuselage skin. I did get the "pillows" to even out some by careful sequencing as I final drilled out to #19 holes, and I rolled a break on the edge. http://www.cleavelandtool.com/Edge-F.../#.WwrmF6M2x9A
__________________
RV-8 slow build
IO360-M1B Sensenich fixed pitch
Garmin G3X
GTN 625
GNC 255
GTR 20
GTX 45R
G5 x 2

Facebook "log" https://www.facebook.com/BZsRVproject/
Reply With Quote
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