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Apply a strip of masking tape to the top and bottom edges of the root
rib on one wing tip panel and the top and bottom edges of the
corresponding end of the center wing panel.
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The masking tape will prevent excess epoxy from getting onto the
wing panels when you join them.
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Mix a generous amount of 30 minute epoxy and apply a thin layer to
the
entire surface of BOTH root ribs
, the two dowels in the wing tip
panel and into the holes in the center wing panel. Make sure to use
enough epoxy to fill any gaps.
STEP 2: JOINING THE WING PANELS
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IMPORTANT
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It is of the utmost importance to the integrity of the glue joint that you apply a generous amount of epoxy to
both
root ribs and the two dowels.
Not using enough epoxy can result in wing failure during flight.
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Slide the two wing panels together and realign them. Quickly wipe away any excess epoxy, using a paper towel and rubbing
alcohol, and use pieces of masking tape to hold the two wing panels aligned until the epoxy fully cures.
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After the epoxy fully cures, repeat the previous procedures to glue the second wing tip panel to the center wing panel.
STEP 3: CHECKING THE GLUE JOINTS
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Once the epoxy has fully cured, remove the masking tape and double-check both glue joints. If any gaps are present, mix a
small quantity of 30 minute epoxy and carefully fill any remaining gaps.
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IMPORTANT
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Do not omit this procedure. All three wing panels should fit together tightly, but it's possible to have some small
gaps that appear in the glue joints after the epoxy has cured. To make the glue joints as strong as possible, it's important to fill any
gaps, using 30 minute epoxy.
STEP 4: INSTALLING THE AILERON SERVOS
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Using a modeling knife, cut away and remove the covering material
from over the aileron servo lead exit hole in the bottom of the wing. The
center of the hole is 7-1/2" in front of the trailing edge and the hole is
2-3/8" wide and 3-3/4" long.
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Using a modeling knife, cut away and remove the covering material
from over the two aileron servo mounting holes in the bottom of the
wing. The holes are located 1/2" in from the wing tip panel glue joints
and 3" in front of the trailing edge.