what is the full size retract servo part number as im building a scale 430 heli vario that is 8.5 feet long need part number the futaba 3170g is to small
The Futaba S3170G servo is the only retract servo currently produced. If it's too small for your retracts, you may need to use one servo per gear or go to a pneumatic, hydraulic, or other type of system.
retract servo
