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3. Measure the rod to make sure it is centered in the
rudder as shown
4. Thread a control horn on each end of the threaded rod
so the measurement from the control surface to the clevis is
1
/
-inch (28mm) as shown in the drawing.
1
8
1
/
-inch (28mm)
1
8
22
5. Position the rudder tiller arm on the bottom of the
rudder. Use a felt-tipped pen to mark the locations for the
two mounting screws.
6. Use a pin vise and 1/16-inch (1.5mm) drill bit to drill
the two holes for the tiller arm mounting screws.
*Drawing not to scale
7. Use a #1 Phillips screwdriver to thread a #4 x 5/8-inch
sheet metal screw in each of the holes drilled in the previous
step to cut threads in the surrounding wood. Remove the
screw and apply 2–3 drops of thin CA in each hole to harden
the threads.
8. Secure the rudder tiller arm using two #4 x 5/8-inch
sheet metal screws and a #1 Phillips screwdriver.
Hangar 9 33% Pawnee 80cc ARF
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