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03-05-2017, 05:23 PM
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Join Date: Nov 2016
Location: Pleasant Hill, Oregon
Posts: 5
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RV9 Rib holes
I have been working to complete an RV9A from a fellow EAA member. In doing so I have been gong over everything as if I was building it from the beginning. However, I have a question about the placement of the wing rib wiring access hole. In the wing drawings it shows the location in the photo for 1/2 inch hole, yet Van's FAQ shows it differently. Any advice or comments as to this question?
http://i67.tinypic.com/sbospt.jpg
Charlie
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03-05-2017, 05:51 PM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Quote:
Originally Posted by Webfoot
I have been working to complete an RV9A from a fellow EAA member. In doing so I have been gong over everything as if I was building it from the beginning. However, I have a question about the placement of the wing rib wiring access hole. In the wing drawings it shows the location in the photo for 1/2 inch hole, yet Van's FAQ shows it differently. Any advice or comments as to this question?
http://i67.tinypic.com/sbospt.jpg
Charlie
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Van's has a wing wiring document if it helps.
http://vansaircraft.com/pdf/Wing_Wiring.pdf
Here's you're photo. The large conduit is usually at the bottom of the ribs. That path takes it right under the bellcrank.

__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Last edited by wirejock : 03-05-2017 at 06:30 PM.
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03-05-2017, 08:09 PM
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Join Date: Jan 2016
Location: Eden Prairie, MN
Posts: 14
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Good luck with the .75" conduit holes
I had good luck following Van's recommendation for .75" conduit holes per the previous poster's link. I was a bit concerned that the conduit might get in the way when it came time to rivet the bottom skins, but it wasn't an issue at all.

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Chris Hrabe
Eden Prairie, MN
RV-9A
Fuselage Complete
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03-08-2017, 11:42 AM
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Join Date: Nov 2016
Location: Pleasant Hill, Oregon
Posts: 5
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Rib Holes
Thanks for your thoughts on this. Now I'm considering my options to replace all the affected ribs or new set of wings. Lot's of rework, but looks like the best solution.
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03-08-2017, 11:47 AM
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Join Date: Jan 2005
Posts: 3,642
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Quote:
Originally Posted by Webfoot
Thanks for your thoughts on this. Now I'm considering my options to replace all the affected ribs or new set of wings. Lot's of rework, but looks like the best solution.
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Not necessarily. New ribs or new wings would both be drastic solutions to what might not be a problem. Did you check with Van's? While it may not be the recommended location, it might still be acceptable.
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Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
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