Great Planes Giant Aeromaster Kit - GPMA0502 - Manual (Page 23)

D D 9. From the 3/32" x 3/8" x 30" balsa sticks, cut cap
strips, and then use medium CA to glue them to the
bottom of the ribs.
D D 1. Use a razor saw and sanding bar with 150-grit
sandpaper to trim the top sheeting flush with rib R-1T and
the sub LE and TE. Also sand the sheeting, in the aileron
bay area, flush with the aft balsa spars and the balsa
rib caps.
D D 2. From the 5/16" x 15/16" x 18" balsa stick, cut a
sub TE to fit between the rib caps, against the aft balsa
spars in the aileron bay. Glue the sub TE to the aft balsa
spars and use a sanding bar to sand the edges flush with
the wing sheeting.
D 1. Sand the spars, LE, TE and sheeting flush with rib
R-1T. Sand the wing tip ribs flush with the top and bottom
sheeting. Using a razor saw, cut the 1/8" x 1-5/8" x 5"
plywood forward wing joiners 4-13/16" long. Without
using any glue, test join the wing panels by inserting the
forward wing joiners and the two die-cut 1/8" plywood aft
wing joiners into the right wing panel. Join the left wing
panel to the right wing panel and set the wing on a flat
surface. Use a straightedge along the sub LE to check that
the LE is straight.
D 2. After you are satisfied with the fit, take the wing joiners
out of the wing panels. Mix approximately 1 oz. of 30-
minute epoxy. Use plenty of epoxy to coat the main and aft
spars, the wing joiners and the face of ribs R-1T. Insert the
wing joiners in the wing panel and press the wing panels
together. Wipe off any excess epoxy with rubbing alcohol
and a paper towel. Tape the two wing panels together and
weight them down on a flat surface. Check that the sub LE
is straight and the wing panels are flat against the surface.
D D 3. Use medium CA to glue the die-cut 1/8" balsa
wing tip (TTW) perpendicular to rib R-6. Glue the die-cut
1/8" balsa wing tip formers to the top and bottom of the
wing tip. Sand the tip of the formers flush with rib R-6.
D 4. Give the entire wing panel a rough sanding and set it
aside while you go back and build the left wing panel.
D 3. Use a sanding bar and 220-grit sandpaper to sand the
sub LE flat. Cut the 30" balsa LE to fit on the sub LE
between the previously installed LE'S. When satisfied with
the fit glue the LE to the sub LE with medium CA.
D 4. From the 5/16" x 15/16" x 18" balsa stick make the
center trailing edge. Use medium CA to glue the TE
centered on the sub TE. With a razor plane and a sanding
bar, sand the TE flush with the top and bottom sheeting.
Then sand a radius on the three TE pieces you
just installed.
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