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Step 9
Use a pin drill and a 5/64-inch (2mm) drill bit to drill the
four blocks for the cowl mounting screws.
Step 10
Use thin CA to harden the surrounding wood to help
prevent the screws from vibrating loose.
Step 11
Enlarge the holes in the cowling ONLY using a pin drill
and 1/8-inch (3mm) drill bit.
Step 12
Secure the cowling to the fuselage using four
#4 x 1/2-inch sheet metal screws.
Section 7: Wing and Cowling Installation