Great Planes Giant Citabria 30cc/EP ARF - GPMA1435 - Manual (Page 12)

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6. Mix 1/4 ounce of 30 minute epoxy. Use a toothpick to
apply a small amount of glue into each of the hinge holes
in the stab and both halves of the elevator. Apply 30 minute
epoxy to one side of each of the six hinges and install them in
the holes in the left and right half of the elevator. Clean excess
epoxy with a paper towel and rubbing alcohol. Move quickly
and apply 30 minute epoxy to the other half of the hinge and
then install each elevator to the horizontal stabilizer. Allow
the glue to harden.
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7. Use the same technique to install the rudder to the fin.
Install the Elevator and Rudder Servos
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1. Install a 4-40 nut, clevis keeper and 4-40 threaded clevis
onto two 4-40 x 48" [1220mm] threaded wires.
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2. On the bottom of each elevator there is a plywood
plate. Install one of the clevises into the second hole from
the bottom of a control horn. Slide the 4-40 wire into the hole
in the side of the fuselage and the place the control horn onto
the plywood plate. The holes in the control horn should be
aligned over the hinge line.
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3. Once the horn is properly positioned mark the location
of the control horn mounting holes onto the elevator with a felt
tip marker. On each of the marks drill a 3/32" [2.4mm] hole
through the plywood plate. Do not drill through the top of
the elevator!