Hangar 9 1/4-Scale J-3 Cub ARF User Manual
Page 19
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.Step 12
Attach.one.end.of.the.linkage.to.the.servo.horn..Remove.
the.backplate.from.a.nylon.control.horn.and.attach.the.
other.end.of.the.linkage.to.the.horn..Position.the.horn.
on.the.aileron.with.the.holes.in.the.horn.aligned.with.the.
hinge.line.of.the.aileron..Use.a.felt-tipped.pen.to.mark.the.
location.for.the.three.control.horn.mounting.screws.
Align holes with hinge line
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.Step 13
Use.a.5/64-inch.(2mm).drill.bit.to.drill.the.three.holes.
for.the.control.horn.screws..Apply.a.few.drops.of.thin.CA.
into.each.hole.to.harden.the.wood.to.aid.in.preventing.the.
wood.from.being.crushed.when.the.horn.is.installed.
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.Step 14
Secure.the.control.horn.to.the.aileron.using.three.2-56.x.
1-inch.machine.screws.and.the.control.horn.backplate.
Note:.Once.the.length.of.the.linkage.
has.been.adjusted,.use.threadlock.on.
the.nuts.and.clevises.to.prevent.them.
from.vibrating.loose.in.flight.
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.Step 15
Repeat.Steps.5.through.14.to.install.the.remaining.aileron.
servo.and.linkage.
Aileron Servo Installation