Dynaflite DYFA2018 - Manual (Page 18)

together with the brace installed. Once the
brace fits, use 30-minute epoxy to liberally
cover the brace and the two R1 ribs. Also coat
the spars inside the wing by applying epoxy
with a stick. There should be enough epoxy that
it will "ooze" out of the center of the wing
panels. This excess epoxy can be cleaned up
using a paper towel and isopropyi alcohol. Use
masking tape to hold the two panels together
until the epoxy has cured.
Note: The correct amount of dihedral between
the two center panels can be measured by
placing one center panel flat on the work
surface.The other center panel, when measured
where it attaches to the tip panel, will measure
about 3" from the work surface.This measurement
is not critical, and can vary up to 1/4" either
direction without causing any flight performance
problems.
Q 5. Once the epoxy has fully cured, use 150-
grit sandpaper to sand the joint between the
two panels smooth.
Q 6. Cut two scraps of 1/8" plywood to be used
as a trailing edge support. This will prevent the
rubber bands from crushing the trailing edge of
the wing. Use the plan as a guide for cutting
and positioning the support.
Q 2.Temporarily install the two 3-1/2" wing hold
down dowels in the fuselage. Set the wing on
the fuselage and secure it by hooking a couple
of rubber bands (not included) over the forward
dowel, stretching the rubber bands over the
wing and hooking them over the aft dowel. Set
the stabilizer in the stabilizer saddle. Check the
alignment of the stabilizer with the wing from
the front and rear of the model. If the stabilizer
tips are not equidistant above the wing,
carefully sand the high side of the stabilizer
saddle until the stabilizer and wing are aligned.
Use a tape measure to set the stabilizer tips
equal distances from the nose.
Q 3. UseT-pins to hold the stabilizer in position
on the fuselage while marking the bottom of the
stabilizer where it meets the fuselage. Do not
glue it in position at this time.
LJ 1. With the fuse placed right side up on a flat
surface, test fit the wing into the wing saddle. If
the wing is slightly too large (front to rear) to fit
into the wing saddle, sand the rear edge of the
saddle and the wing trailing edge slightly until
it fits.
Q 1. Carve and sand the 1/2" x 2" x 2-1/2" balsa
front wing fairing to fit the top of the wing.
Round the corners of the block to match the
fuselage.
Note: It is difficult (and not necessary) to try to
carve this block to mate exactly with the wing;
therefore, you should just "rough it out," then
later you can fill any gaps with balsa filler.
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