GREAT PLANES Yak 54 36 ARF Instruction Manual page 12

with the vertical fin and remove the covering inside your
marks. Reposition the stab into the fuse and stand back
several feet behind the model and view it from the rear.
Confirm that the stabilizer is parallel with the wing panels. If
not, use tape or a weight to straighten it. Thin CA glue or
epoxy can be used to glue the stabilizer in place.
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10. Use a hobby knife to cut open the hinge slots in the
elevators and horizontal stabilizer. Before gluing, roughen
the elevator joiner wire with sandpaper and clean it off with
alcohol. Prepare the elevators by inserting a CA hinge into
each hinge slot. Use T-pins to keep the hinges centered. Put
a light coating of epoxy or thick CA onto the ends of the
elevator joiner wire. Install the elevators onto the joiner wire
while fitting the CA hinges into their mating slots in the
horizontal stabilizer. As you did with the ailerons, use thin
CA to glue the hinges.
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11. Cut a slot for the rudder control horn 1-1/2" [38mm]
from the bottom of the rudder. Test fit the control horn into
the slot, being sure that the control horn holes are
positioned over the hinge line. Attach the rudder to the
fuselage and fin using three CA hinges.
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12. Insert a control horn into the slot on the underside of the
left elevator. Press a control horn backplate onto the control
horn tab on top of the elevator. Apply a few drops of CA glue
to the control horn and backplate to secure them in place. The
control horn tab can be trimmed flush with the backplate.
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13. Attach a control horn to the right side of the rudder in
the same manner.
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