Question: The aileron control rods that run from the servo to the aileron control horn on my VMAR Twin Otter appear to be slightly too long. What should I do?
Answer: The Twin Otter wing has been produced in several different configurations depending on the market area. Early production runs shipped to Europe and the UK used a one piece wing. Later production runs and all shipments to North America used a two piece wing. The aileron control rod length is adjustable to fit the wing that you have.
For each aileron:
1) Ensure that your servo is mounted correctly and that the servo arm can rotate freely the way you have installed it. Center the servo arm so that it lies parallel to the wing trailing edge.
3) Install the control horns on the ailerons. Tape the ailerons into a neutral position as explained in the manual.
4) If you find that the aileron control rods are too long, use a ruler to measure how much shorter you need to make the rod.
- From one end of the rod, unscrew the clevis and threaded stud.
- Use a pair of scissors or snips to cut the plastic rod to the shorter length you required.
- Thread the stud and clevis back onto the plastic rod.
- Tug test to ensure you have a secure coupling.
5) If in any doubt about the security of the coupling, unthread the clevis and wick thin CA into the coupling between the stud and the plastic tube. Do not get CA into the clevis threads.
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