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Position one nylon control horn onto one aileron. When aligned
properly, the centerline of the control horn should be 7" out from the
inside edge of the aileron (at the hinge line) and the base of the control
horn should be parallel too, and lined up with, the front edge of the
aileron, so that the control horn will line up with the pushrod wire.
STEP 1: INSTALLING THE CONTROL HORNS
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When satisfied with the alignment, mark and drill 1/16" diameter pilot holes into the aileron for the control horn mounting
screws.
Be careful not to drill through the top of the aileron!
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IMPORTANT
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Because the control horn mounting screws thread directly into a plywood plate, instead of using a nylon
backplate, we strongly suggest that you apply a drop or two of 5 minute epoxy to the wood screws before threading them into
place. The epoxy will ensure that the wood screws won't come loose during flight.
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Install the control horn to the aileron, using two M2 x 10mm wood screws.
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Repeat the previous procedures to align and install the second control horn onto the bottom of the other aileron.
STEP 2: INSTALLING THE PUSHROD ASSEMBLIES
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Install the servo horn onto the servo, making sure that the servo
horn is centered and points toward the wing tip.
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Install the servo horn retaining screw to secure the servo horn to
the servo.
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Using a modeling knife, cut away all but one arm from a "4-point" servo horn.
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Install the Z-Bend in one pushrod wire into the hole in the servo arm that is 9/16" out from the center of the servo arm.
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Connect your radio system and plug one aileron servo into the receiver. Center the servo by double-checking that the aileron
trim lever on your transmitter is centered, then use a couple of pieces of masking tape, taped between the aileron and the wing, to
hold the aileron centered.
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Thread one nylon clevis onto the pushrod wire and snap the clevis
into the
outermost hole
in the control horn.
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Hold the pushrod wire with a pair of pliers to prevent it from turning
or twisting when installing the clevis.
Continued On Next Page
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