* Match drilled Root Rib Attach Angles W20-02 to W20-03 (2 sets) with 1/8" pilot holes. - Drilled first piece of each set with #40 bit on the drill press with table tilted 4 degrees - Clamped the matching parts together, put them in the vice and completed the match drilling up to #30 pilot holes. - Used 6" airplane bits when pieces were clamped together.
* Wing Root Doubles are kit-supplied parts. Just need a little Scotchbrite on the edges.
