RV-9A: Left Fuel Tank - 5/12/2006
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 Bought a drill guide from Averys
I was ready to drill the #19 holes in the spar attachment holes of the left tank, when I noticed that my parts bin that held my #19 drill bits had 2 different sized drill bits in it. Both of these drill bits were second hand and had the size rubbed off of them. They were still in pretty good shape, so I didn't want to trash them. I ordered some new drill bits from Avery, along with the drill guide as an additional CYA when I'm not sure about a drill bit size.
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 Countersunk the tank skin holes that attach to the baffle
I practiced on same scrap aluminum untill I got the countersink just right, checking it with a rivet.
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 Drilled the spar and strip holes.
I drilled the spar attachment screw holes and the W-919 screw holes to final size using a #19 drill bit.
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