Great Planes Christen Eagle 46 ARF - GPMA1431 - Manual (Page 8)

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5. Epoxy the aileron mounting blocks onto the hatch
covers. Allow the epoxy to harden completely before moving on.
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6. Drill a 1/16" [1.6mm] hole through the hatch cover
and through each aileron mounting block. The hole should be
slightly off center to prevent interference when drilling holes for
the aileron mounting screws in the next step. Thread a #2 x 3/8"
[9.5mm] self-tapping fl athead screw into each block as shown.
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7. Position each servo against the undersides of the
aileron servo hatch covers between the mounting blocks.
Shim the aileron servos away from the hatch covers
approximately 3/64" [1.2mm] to isolate it from vibration (a
business card folded in thirds works well for this). Drill 1/16"
[1.6mm] holes through the mounting tabs on the servo case
into the blocks. Thread a servo mounting screw (included
with the servos) into each hole and back it out. Apply a drop
of thin CA to each hole to harden the wood. When the CA
has dried, install the servos onto the hatch covers using the
hardware supplied with the servos.
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8. Use the strings taped inside the aileron servo
hatches to pull the servo leads through the wing panels and
out the servo lead exit holes.
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9. Thread a #2 x 3/8" [9.5mm] self-tapping screw into
each hatch cover mounting hole in the wing and back it out.
Apply a drop of thin CA glue to each hole and allow the glue
to harden. Install the hatches using eight #2 x 3/8" [9.5mm]
self-tapping screws and eight #2 fl at washers.