11
Twin Otter ARF Assembly Manual
Step 8
Place the servo on the mounting blocks with a 1/32-
inch gap between it and the hatch. Use a pencil to
mark the servo hole locations on the blocks.
Step 9
Use a 5/64-inch drill bit in a pin vise to drill the servo
mounting holes. Apply a small drop of thin CA to each
hole to strengthen the wood and help retain the screw.
Allow the CA to cure without using accelerator.
Step 10
Use a #1 Phillips screwdriver to install the servo with
its provided hardware.
Step 11
Attach a 9-inch servo extension lead to the servo and
secure the connection with a piece of dental floss.
Hint:
Apply a very small drop of thin CA to the knot to
prevent it coming loose.
Step 12
Use a #1 Phillips screwdriver to thread a #2 x 3/8-inch
screw into each of the hatch mounting holes in the
wing. Remove the screw and apply a small drop of
thin CA to each hole to strengthen the wood. Allow the
CA to cure without using accelerator.
Step 13
There is a pull string provided to draw the aileron
servo lead through the wing. Tape the string to the
servo extension and pull it through to the wing root.