RV-9A: Left Wing Prep - 4/17/2006
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 Getting ready to final drill the top skins
Before starting the final drilling routine on the skins, I marked each un-clecoed hole with my blue sharpie. Then after I drill these holes, it's just a matter of moving the clecoes into the marked holes and drilling the rest. This way there is no confusion on whether a hole was drilled or not.
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 Final drilled the #40 holes on the top skins
Being the old lazy butt that I am, I decided to "borrow" my wifes office chair and gently glide my way up and down while drilling.
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 Cut the J-stringers
There are 4 of these J-stringers that come with the kit. I cut two of them to the lengths as indicated by Drawing #9. They overlap each other inside the wing. The instructions say to: "Slip the W-926B (J Stringer) into place so that it just butts up to the edge of the W-903 skin". This has to be a typo. The W-903 skin is the outboard skin, therefore the J Stringer lays on top of the W-903 skin and then actually butts up against the W-902 skin, where the skins over lap. The outboard end of J Stringer ends up being flush with the outer end rib, otherwise it would interfere with the fiberglass tip attachment.
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 Drew the lines on the center of the flat flange
The plans call for lines to be drawn on the flat flange of the J-stringers. I put marks all along the flange in the center. Then I laid the J-stringer on a 1x2 an connected the dots with my 2 foot ruler.
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 Drilled and clecoed the J-stringer to the top skins
I started with the inboard J-stringer and carefully held the end of the stringer in place and drilled one hole on the end to get things started. Then I used my special aircraft adhesive tool (duct tape) to hold the stringer in place will I drilled and clecoed the rest of the holes.
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 Why stop now?
I decided to go ahead and cleco on the bottom skins. WOW, is the dude sturdy now!!! Putting on the bottom skins really tightens things up. I will start final drilling these bottom skins tomorrow.
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