Great Planes Matt Chapman Eagle 580 46/EP ARF - GPMA1281 - Manual (Page 8)

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4. Use the strings taped inside the aileron servo hatches
to pull the servo leads through the wing panels.
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5. Before fi tting the hatches in place, thread a #2 x 3/8"
[9.5mm] self-tapping screw into each hatch mounting hole
and back it out. Apply a drop of thin CA to each hole to
harden the wood. Install the hatch covers to the wings using
eight #2 x 3/8" [9.5mm] self-tapping screws and eight #2
fl at washers.
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6. Thread a nylon clevis 20 complete turns onto each 6"
[152mm] pushrod. Slide a silicone clevis retainer onto each
clevis and connect the clevises to the outer holes of two
control horns.
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7. Position the control horns over the plywood plates in the
ailerons (if you cannot see them, hold the aileron at a shallow
angle in good lighting or use a small pin to puncture the covering)
using the position of the servo arms as a guide. Align the holes
in the control horns directly over the aileron hinge line and mark
the location of the control horn mounting holes.
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8. Drill 1/16" [1.6mm] holes at the marks you made
through the plywood plates. Do not drill all the way through
the ailerons! Thread a #2 x 3/8" [9.5mm] self-tapping screw
through each hole and back it out. Apply a couple drops of
thin CA glue to each hole to harden the wood. When the glue
has dried, install the control horns onto the ailerons using
four #2 x 3/8" [9.5mm] self-tapping screws.
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