|Cowl Alignment and Mounting
|Begin by measuring the opening to determine the size of
disc required. A caliper works best, but a ruler or drafting
circle template will do nicely as well.
|Items required to get started;
A- 3 or 4 MM Depron foam or Artists Foam Board (the
kind used for making bowed outline patterns).
B- A measuring device used to determine the the
diameter of the cowl opening
C- A compass, or drafting circle template to size the disc
to fit the front cowl opening.
D- A sharp knife to cut the disc from the foam sheet.
E- The appropriate size drill bit to drill the disc for the
|Draw the proper diameter circle on the foam and mark the
center point of the disc. Using a compass the center hole
will be clearly visible. If you use a drafting circle template
you'll have to find the center after the circle is drawn.
|Cut the disc out of the foam and drill the center hole. Now
you can fit the disc into the opening in the cowl, trimming
as needed for a good snug fit.
|With the disc fitted into the cowl, slip the cowl assembly
onto the prop shaft and align it on the fuselage. Drill the
mounting holes and screw the cowl in place. And finally,
remove the disc and the job is done.