11
❏❏12. Glue WTR1 and W5 to the spars keeping
WTR1 down against the 1/2" shim. It will be
necessary to squeeze and hold the spars together
until the glue cures.
❏❏13. Glue WTR1 to rib W6 and WTR2 to ribs
W4, W5 and W6, making sure to keep the wing tip
down against the shims.
❏❏14. Cut a 18-5/8" long piece from a 1/4" x
3/4" x 24" balsa stick and glue it to the last W3 rib,
W4 ribs and the W5 rib. Keep rib W5 centered on
the TE.
❏❏15. Sand the TE to the shape shown on the
plan. Remove the wing from the building surface to
shape the bottom of the TE.
❏❏16. Pin the wing back onto the plan.
❏❏17. Fit and glue the 3/32" x 1/2" x 36"
balsa TE spar sheeting onto the bottom of the ribs
from W1 to W5.
❏❏18. Cut, fit and glue the 3/32" x 15/16" x
36" balsa TE sheeting onto the bottom of the TE of
the ribs from rib W1 to the last W3.
NOTE: The sheeting extends 3/8" past the rear of
the ribs.
❏❏19. From the 3/32" x 3/4" x 36" balsa
sheet, cut, fit and glue the TE spar webs in place.
Make sure to keep the top of the webs flush with the
top of the ribs.
NOTE: The grain of the webs is horizontal.
❏❏20. Cut the wing bolt filler block from
1/2" x 2" x 6" balsa stock. Glue it between W1
and W2. Sand the block so that it is flush with the
tops of the ribs.
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