Great Planes PT-60 Kit - GPMA0119 - Manual (Page 9)

Work on a flat surface over the plans covered with waxed
paper. Refer to the plans to identify the parts and
their locations.
D 1. Locate the shaped 5/16" balsa forward, middle and
aft stab parts. Check their fit and sand the mating edges as
needed. Glue the three parts together by applying a light
bead of medium CA to the edges, then press the parts
together. Wipe off any excess from the surface before
it cures.
D 2. Locate the shaped 5/16" balsa dorsal, forward and
aft fin parts. Check their fit and sand the mating edges as
needed. Work over the plans (don't forget the waxed
paper), then glue the three parts together with a thin bead
of medium CA. Wipe off any excess from the surface
before it cures.
D 3. Position the 5/16" x 5/16" x 3" balsa dorsal fin tab
stick over the plans under the dorsal fin, then mark its
location on the bottom edge of the dorsal fin. Glue the tab
to the dorsal fin with medium CA.
D 4. Sand the seams of the stab and fin smooth with
sharp, 220-grit sandpaper and a sanding block.
D 5. Temporarily join the 5/16" x 1-1/4" x 27" balsa
elevator to the stab and the 5/16" shaped rudder to the fin
with masking tape. Draw a centerline (see Expert Tip
below) around the outside edges of both assemblies. Use a
sanding block loaded with 150-grit sandpaper to round the
perimeter edges of both assemblies to match the plans. Do
not roundoff the bottom edge of the fin. Refer to the plans
for the exact shape. The centerline will help you to keep the
shape symmetrical.
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