Top Flite TOPA0215 - Manual (Page 11)

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19. Place the sheeting flat on the bench and
sand the joints of the sheeting smooth on the side
that will be the top of the wing. When you have
completed the sanding and are satisfied with the fit,
glue the sheeting in place between the leading edge
and trailing edge sheeting.
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20. From 3/32" x 1/4" x 36" [214 x 614 x
914mm] balsa stick, cut and glue nine cap strips into
place. Cut each one to fit between the leading edge
sheeting and the trailing edge sheeting on each rib.
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21. Remove the wing from the building board
and turn it over. Glue the 3/16" x 3/16" x 29-3/4"
balsa [4.8 x 4.8 x 756mm] leading edge sub spar in
the notches in the bottom of the wing.
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22. Repeat steps 1-21 for the left wing.
Install the Wing Joiners
Important!
The following steps are for the right wing panel.
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1. At the root rib, cut a 1/8" [3mm] slot in W1 as
shown for the leading edge and trailing edge brace.
Cut a 1/16" [1.6mm] slot through two W1 ribs for the
dihedral brace.
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2. Locate the die-cut 1/8" [3mm] plywood leading
edge and trailing edge brace as well as the laser-cut
1/16" [1.6mm] plywood dihedral brace. Mark a
centerline on each of them.
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3. Test fit each of the braces in the slots you just
cut. When fitting the braces it is important that they
are installed properly. Important! The top of the
brace must be glued so that it is in contact with the
top sheeting of the wing.
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4. When you are satisfied with the fit of each
brace, glue them in place with 30-minute epoxy. Use
the center line you made on each brace as a guide
to position the brace. It is important that exactly half
of each brace goes into each wing panel. Set the
wing panel aside until the epoxy has fully cured.
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5. Glue the die-cut 1/8" [3mm] ply sub spar dowel
brace to the balsa sub spars as shown on the plan.