Top Flite TOPA0110 - Manual (Page 44)

2. Tape the plywood wing fillet pieces to the
wing saddle as shown in the photographs. Notice
how the Wing Fillet pieces overlap the wing
saddle and fit around the fuselage behind the
wing saddle.
3. Tape a layer of waxed paper or plastic
food wrap to the top surface of the wing in the
wing saddle area (the shims used to simulate the
thickness of the fillet in earlier steps should be
removed). Bolt the wing firmly onto the fuselage.
Check to make sure there are no misfits in the
wing saddle and make adjustments if needed.
4. With the wing bolted to the fuselage, glue
the wing fillet to the wing saddle with medium CA.
NOTE: The wing fillet may be built up
with small balsa blocks and triangle
stock, or you may use the technique
described below.
5. Cut a tapered piece of 1/16" sheet balsa
as shown in the next photos. Test fit it against
the wing saddle and refine the fit. A little concave
curvature on the side that contacts the plywood
wing fillet helps. Make a few hard triangle stock
pieces to fit under the balsa strip especially
toward the back end of the fillet.
6. Glue the long strip in place starting in the
middle, then working toward each end. The angle
of the balsa should be approximately 45 degrees
from the middle forward, and flatten out some
toward the back.
7. Apply HobbyLite filler to the fillet. Trowel it
in with a spatula as best you can. Lay a piece of
waxed paper over a 4" section of the fillet. Use
your fingers to contour the fillet, then carefully
peel the waxed paper away. Contour the entire
fillet one section at a time.
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