Wing Assembly; Assemble The Wing Joiners; Prepare The Wing Roots; Join The Wing Panels - GREAT PLANES Easy Sport 40 Instruction Manual

WING ASSEMBLY

Assemble the Wing Joiners

Note: As epoxy is used for most of this kit's assembly, it's a
good idea to keep rubbing alcohol and paper towels handy
for cleanup. Before the epoxy has had time to cure, moisten
a paper towel with alcohol and clean off any excess epoxy.
1. Lightly sand the edges of the three plywood wing
joiners to remove any rough edges. Use 30-minute epoxy
to glue the three pieces together. Be sure that the slight
dihedral angle is on the same edge of all three pieces.
Clamp the wing joiners together or weigh them down on a
flat surface while the epoxy cures.

Prepare the Wing Roots

2. Measure and mark the location of the aileron servo
tray opening. Using a sharp hobby knife, carefully cut the
opening for the aileron servo tray in both wing panels on
the bottom of each wing panel.
Note: The opening begins directly behind the wing spar.
3. Sand the inside of both wing roots for a nice flush fit.
Use 30-minute epoxy to glue the die-cut ply forward and
aft root ribs to both wing roots. Be sure that they are
aligned with the top and bottom of the wing. When
installing the forward root rib, it should be noted that the
tab is placed toward the top of the wing. Use strips of
masking tape to hold the parts in position until the epoxy
has cured.

Join the Wing Panels

1. Draw a centerline on the wing joiner as shown in the
photo. Test fit the wing joiner into each wing panel. You
must be certain that the joiner fits all the way into the wing
panels. The joiner should fit snugly into each wing panel.
Sand the joiner if it does not fit snugly or does not fit
completely into the wing panels.
2. Test fit the panels together with the wing joiner in
place. The angled edge of the joiner points towards the
bottom of the wing. Check the alignment of the leading
and trailing edges. They should line up nicely with the roots
fitting together without any gaps. Sand the root ribs if any
imperfections are keeping the wing halves from fitting
together properly.
6