Marked and drilled the two holes #40, then #30 through the upper root skin and trailing edge spar per the figures manual. Fabricated a drill guide per the figures manual, marked the center of the fuel cap opening on the upper root skin and attached the drill guide to the tank. Cut 2.5" hole in tank with hole saw for fuel cap installation at a later date.
Marked center of opening and fabricated drill guide
Secured Guide to Tank. This will keep hole saw centered during cutting
