Dynaflite DYFA3040 - Manual (Page 24)

LI 3. After the epoxy has cured, slide the right
panel back into position. Position the right
panel flat on your building board and prop the
left tip off the building board. Don't you wish
your surface was longer!!
Q 4. Measure the distance under the left wing
tip at the bottom of rib W12. If it is 8-3/4" you
have exactly six degrees of dihedral in each
panel. Don't be concerned if it is a little off as
the dihedral angle is not at all critical. If it is off
by more than 1/2" you might want to find out
why, but you don't really need to fix it. When
you are satisfied, glue the dihedral braces to the
right wing panel with 30-minute epoxy. Use
epoxy on theW1 ribs as well.
Q 5. Using 3/32" x 3" x 36" balsa, sheet the top
center of the wing from W3 to W3.The strength
of the center section is important so we
recommend that you use aliphatic resin glue.
Note in the photo that we used one continuous
piece across the entire center section rather
than two pieces from W1 to W3 on each side.
This greatly increases the strength of the joint,
but it is a bit harder to install this way. Do not
sheet the bottom center section at this time.
Q 6. Glue the die-cut 1/8" ply LE doublers to the
rear of the LE between W1 andW2 on both wing
panels.
[-1 7. Drill two 5/16" holes through the wing LE
and doubler where shown on the plan and in
the photo.
Q 8. Cut two 1/4" x 7/8" x 7/8" balsa blocks from
leftover sticks and drill a 5/16" hole in the center
of both blocks.
Q 9. Slide the 5/16" x 6" wing dowels through
the holes in the LE and put a block on the end of
each dowel. Align the blocks on the 1/16" ply
dihedral braces so that the dowels are parallel
to the wing centerline. Glue the BLOCKS
ONLY to the dihedral braces with 6-minute
epoxy. Remove the dowels before the epoxy sets.
I-] 10. Fit the wing to the fuselage. Center the
wing and mark the location of the dowels on
bulkhead B. This is done by putting a pencil
through the hole in the LE and marking the
bulkhead.
Q 11. Remove the wing and drill 5/16" holes into
bulkhead B.
Q 12. Put the dowels into the wing and fit the
wing back onto the fuselage. Make any
adjustments needed to get the dowels to fit
properly into the holes in bulkhead B. When
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