Great Planes Super Sportster 40 MkII Kit - GPMA0205 - Manual (Page 21)

ring and the firewall. The sides overhang the fuse and cowl
bottom about 3/16". Glue the sides in position.
D 6. Cut two 2-3/4" long pieces of 3/8" triangular balsa
from the 9" stick. Glue these pieces to the cowl bottom and
the cowl side as shown on the fuse plan.
D 1. Make four 1/16" x 1/4" x 1/2" balsa shims from
leftover. Spot glue these shims to the die-cut 1/16" ply cowl
ring as shown in the above photo. Center a 2-1/2" spinner
backplate over the cowl ring then spot glue it to the shims.
D 2. Slide the cowl ring assembly down the prop shaft and
secure it with the prop nut.
D 7. Sand both ends of the 1/2" x 5/8" x 2-1/4" balsa
forward cowl filler to fit between the cowl sides behind the
spinner ring. Glue it in place. Note: The cowl filler may
require a little extra shaping to provide clearance for a 2-
stroke carburetor.
D 3. Position the 5/8" x 4" x 10" shaped balsa cowl
bottom on the bottom of the fuse. Sand the forward edge
until it fits flush with the ply spinner ring, then glue it
in position.
D 8. Carefully cut the shims to remove the spinner
backplate from the cowl ring. Remove the engine, then
sand the cowl ring to remove the shims and glue.
D 4. Sand the aft end of the cowl bottom flush with F-2.
D 5. Sand the forward and aft edges of the two shaped
1/2" balsa cowl sides until they fit evenly between the cowl
D 9. Use a razor plane, whittling knife, and 80-grit
sandpaper to shape the cowl and blend it with the fuse
sides and cowl ring as shown on the plans. Re-install the
engine and spinner, then finish off the sanding of the cowl
ring, tapering it to match the angle of the spinner.
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