❏
1. Use 5-minute epoxy to glue the three plywood
forward
wing joiners
together and the two
aft wing joiners
together. Use clothespins or c-clamps to clamp the joiners
together until the epoxy cures. Wipe off any excess epoxy
with a paper towel and isopropyl alcohol before it cures.
Draw a vertical
centerline
on the forward and aft wing joiners.
❏
2. Use a sharp hobby knife to cut the covering from the
servo cord exits
on the top of each wing half. Carefully
untie the string from the stick at the root rib and route the
string through the servo cord exit. Re-tie the strings around
the stick.
❏
3. Use a sharp hobby knife to cut the covering from the
wing dowel holes
in the leading edge and the
wing bolt
holes
at the trailing edge of each wing half. The wing dowel
holes are approximately
2" [50.8mm]
from the wing root.
The wing bolt holes are approximately
2" [50.8mm]
from
the wing root and
2-1/2" [63.5mm]
from the trailing edge.
❏
4. Test fit the wing joiners in both wing halves. A snug fit
is desirable. If the joiners do not fit properly, lightly sand the
edges and sides of the joiners.
Note:
The plywood wing
joiners have a slight dihedral angle. This angle should point
toward the top of the wing. When satisfied with the fit of the
wing joiners, use
30-minute epoxy
to glue the joiners in the
left wing half. Use plenty of epoxy, making sure the joiners
are glued to the spars and shear webs. Before the epoxy
cures, make sure the joiners are straight and in good
contact with the spars. Wipe off any excess epoxy from the
root rib and the wing covering using a paper towel
dampened with isopropyl alcohol.
❏
5. Test fit the two wing halves together. The wing halves
should seat together without any gaps and the front and
back edges of each wing should line up with each other.
Completely cover the exposed portion of the wing joiners,
spars and root ribs with 30-minute epoxy. Slide the two
Join the Two Wing Halves
WING ASSEMBLY
6
