Hangar 9 Twin Otter ARF Assembly Manual page 12

Step 14
Use a #1 Phillips screwdriver to install the aileron
hatch with four #2 x 3/8-inch woodscrews.
Step 15
Center the aileron by aligning it with the fixed portion
of the wing tip and tape it in place with low-tack tape.
12
Step 16
Slide a silicone keeper onto a 4-inch steel pushrod
then thread on a clevis so it is centered on the threads.
Step 17
Attach the clevis to the outer hole of the aileron control
horn. Center the servo then use a felt-tipped pen to
mark the pushrod at the servo arm.
Step 18
Remove the pushrod and use pliers to make a
90-degree bend at the mark. Trim the bent portion of
the pushrod to a length of 1/4 inch using sidecutters.
Step 19
Attach the clevis to the outer hole of the control horn
and secure it with the silicone keeper. Slide the bent
portion of the pushrod through the outer hole of the
servo arm and secure it with a snap keeper.
Twin Otter ARF Assembly Manual