ELEVATOR SKELETON AND SKIN ASSEMBLY

The L angle for the rear upper and lower horn was drilled with a #40 drill bit. Then with a #40 drill bit, the L angle was drilled through the rear spar and through the upper and lower horn. The holes was expanded with a #30 drill bit through L angle to the rear spar and with a #20 drill bit through the L angle and upper and lower horn. With a #20 drill bit, it was drilled through upper horn, lower horn, and middle elevator.