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Dynaflite DYFA2016 User Manual

Page 21

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TRIM 1/16" FROM THE TOP OF RIBS
6 AND 7 BEHIND THE SPAR

Build the right wing panel first so your progress
matches the photos.

0 1. Arrange the wing plan so the right wing panel

is over your building board.

U LJ 2. Mark ribs #3, 4, 5 and 6 where the aileron
pushrod guide tube crosses them. Cut or drill a
5/32" hole 3/8" above the mark on the ribs.

Q Q 3. Cover the plan with wax paper. Pin a

1 /8" x 3/8" x 24" balsa bottom outer spar over its

location on the plan. Since the spar is balsa, you can
stick T-pins through it.

Q Q 4. Cut the wing tip dihedral gauge template

(located on the back cover) along the outer dotted
line. Use rubber cement or spray adhesive to glue

the template to a piece of balsa, thin cardboard (the
kind from cereal boxes) or plywood. Accurately cut
the gauge to the solid outline of the template. You
can see the gauge in the photo at the next step.

Q Q 6. Use a #11 blade to trim 1/16" off the top
of ribs #6 & #7 behind the spar.

1/16"

REMOVE

LJ LJ 5. Use the wing tip dihedral gauge to
accurately bevel the end of a 3/16" x 5/8" x 24"
balsa aft spar. Pin the spar to your building board
over its location on the plan so the root end aligns

with the plan.

LJ U 7. Test fit and use medium CA to glue ribs #3
through #10 to the bottom spar and the aft spar. Use

a small 90 degree triangle to hold the ribs

perpendicular as you glue them.

Note: For the best fit between the aft spar and root
rib #2, bevel the spar as seen from the top view to

account for the forward sweep of the trailing edge.

LJ U 8. Position root rib #2 over its location on the
plan. Use the dihedral gauge to hold it at the correct
angle and glue it to the bottom spar and the aft spar
with medium CA.

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