Top Flite TOPA0410 - Manual (Page 35)

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match the angle of the wing saddle. Carefully glue former
W-6E to the top center wing sheeting. Do not glue it to the
1/16" [1.6mm] spacer. After the CA has cured, remove the
1/16" spacer. Glue the die-cut 1/8" [3.2mm] plywood
former F-3C, to the LE of the wing, 1/32" (.8mm] aft of
former F-3B. Be careful to not glue the wing to the fuse.
After placing a straightedge along the notch in each
former, align and glue the die-cut 1/8" [3.2mm] plywood
former F-4C, 5-7/8" [149.2mm] back from F-3C and the
die-cut 1/8" [3.2mm] plywood former F-5C, 6-1/4"
[158.8mm] aft of F-4C.
❏ 16. Glue a 1/4" [6.4mm] balsa square stringer between
F-3C and F-6E.
❏ 17. From four 1/8" x 3" x 24" balsa sheets, edge glue
two sheets together to make two 6" x 24" sheets. Use the
belly-pan template on the plan to cut out two belly pan
sheets. Fit and glue one of the sheets in place as shown.
❏ 18. Cut a 1/2" [12.7mm] access hole in the belly pan
sheeting for the wing bolt. Loosen the wing bolt 3 or 4
turns and glue a length of cardboard tube into the access
hole, but do not glue it to the bolt. Trim the tube close to
the sheeting with a knife and sand the tube flush with the
belly pan sheeting.
❏ 19. Repeat step 18 for the other half of the belly
❏ 20. Sand the center top TE sheet flush with the sides of
the fuse.
❏ 21. Make two triangles from 1/8" [3.2mm] leftover balsa
and glue them in place at the wing TE. Sand the triangles
flush with the fuse sides.
FINISH THE WING
INSTALL THE OIL COOLERS
❏ 1. Cut out the vacuum formed oil coolers along the cut
lines and use a sanding bar to true the edges. Sand the
entire surface of the oil coolers, inside and out, with 320-
grit sand paper to remove the shine from the plastic. This
will allow the paint and glue to adhere better. Wash the oil
coolers with soap and water and dry them thoroughly.
❏ 2. Place the oil coolers in position on the wing and trace
their location. Carefully cut away balsa from under the oil
coolers until they fit flush onto the wing. You will need to
remove a fair amount of wood.
❏ 3. Use epoxy to glue the oil coolers to the wing. After
the epoxy cures, shape the surrounding area to blend into
the oil coolers. Lightweight balsa filler or two part auto
body filler may be used to fill any gaps.