Brief Description: Match Drill L-Wing Rear-Spar and Doubler Plates
15-3: Step 2: Match-Drill Rear Spar Doubler Plate. Adjusted the vertical height of the plate so that it was flush with the bottom flange of the rear spar, about 1/32 inch removed. Step 3; Align and Match-Drill Rear Spar doubler Plates, inner and outer. These required an approximate 3/32 inch removal from the vertial depth of the plate to be flush with the bottom flange. Also needed to notch for the flap hinge brackets. I matched the spar notch but probably could have used less of a notch after fitting. Will look as less on the right wing when manufacturing those. Step 4: Cut out the outer Aileron Pushrod Hole on the Outboard Rear Spar Doubler by tracing the hole cut on the rear spar. The hole pattern does not match the square hole shown on the plans. I presume the hole has been lessened to a more concise size that fits the pattern size of the aileron bracket. 15-4: Step 1: Assemble the L-Wing rear spar, doublers, aileron brackets, etc. as indicated in the plans. Match drill #30 and #40 holes where indicated. Step 2: Machine countersink Rear Spar Doubler Plate, and #40 holes on top flange of the spar immediately above the three doublers.