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1. 05:34 PM - Fuel tank leading edge skin match (Allen Fulmer)
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| Subject: | Fuel tank leading edge skin match |
--> RV7-List message posted by: "Allen Fulmer" <afulmer@charter.net>
Slow build RV7 wing.
Left wing aligned perfectly.
However, when I set the right fuel tank on the spar (using Dan C's
methodology for Z bracket drilling) after setting the leading edge, drilling
the W-408-1R Leading Edge rib and W-423 Joint plate, the tank skin lacks
about 1/32" meeting the top skin when I pull down as hard as I can (bottom
of tank skin already clecoed to spar and lines up fine with bottom of
leading edge skin).
Match is perfect when tank is set not quite on the joint plate (thus Z
brackets/baffle interface seems correct), but as soon as I set it on the
joint plate I get the little 1/32" "lifting" of the tank. I know the
Orndorf tapes show using straps to pull (force!) the tank into position for
drilling. (Didn't have to do this on left tank.) It just seems the tank will
always have to be "forced" into position for attachment.
I have removed the joint plate and alignment is perfect so the problem seems
to be the joint plate but I have studied it and cannot see what is holding
the tank skin up!
Am I obsessing? Should I just use straps to force it and go on? Or
persevere until I find the problem and get it to sit correctly in an
unforced state like the left one did?
Thanks,
Allen Fulmer
RV7 Wings
N808AF reserved
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