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Wing Skin Up Drilling

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Wing Skin Up Drilling

Postby vernd » Thu Apr 11, 2019 5:23 pm

Hi all - quick question about updrilling wing skins.
I'm in the process of fitting wing skins to ribs. I have top and bottom aft skins drilled to #40. However I am running seriously short of silver clecos. Would there be any issue with updrilling the aft skins to #30 before fitting and drilling the leading edge skins to #40.
Appreciate any thots. Thanks....Vern
Vern Dueck - Innisfail, Alberta
Sonex 613 Slow Scratchbuild
Taildragger , Aerovee(turbo),
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Re: Wing Skin Up Drilling

Postby Bryan Cotton » Thu Apr 11, 2019 6:31 pm

Vern,
You probably could. Don't updrill where there are hinges, wing walk, or wing gap strips that also need to be drilled in.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Wing Skin Up Drilling

Postby vernd » Thu Apr 11, 2019 7:22 pm

Ok thanks Bryan - that makes perfect sense.
Never enough clecos…...
Vern Dueck - Innisfail, Alberta
Sonex 613 Slow Scratchbuild
Taildragger , Aerovee(turbo),
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Re: Wing Skin Up Drilling

Postby Rynoth » Thu Apr 11, 2019 8:05 pm

I think I actually did this myself for the same reason (clecoes). When I knew a part was fully fitted (ie top and bottom skins) I drilled SOME of the holes to #30 so I could fit coppers in and free up silvers. I didnt updrill everything until everything was at at least #40. Just make sure you come back later to ensure everything is updrilled before all is said and done.
Ryan Roth
N197RR - Waiex #197 (Turbo Aerovee Taildragger)
Knoxville, TN (Hangar at KRKW)
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