ORIGINAL: kestrel0222
You are right, the wing servo WILL be buried in the wing. I guess I didn't give that too much thought. In order to use mechanical retracts, I would need special servos, 180° travel, is this right?
You can use 180 degree servos, many of which you can find cheap. There are also some proportional retract servos available too - I know Airtronics has them. Don't know about the other mfg's though, as I fly Airtronics
Tim