HITEC Focus III FM - Manual (Page 9)

b. Elevator and Rudder Servo Trim Settings
- Trim Setting before Flight
The servo trim enables minor adjustment of the servo neutral position so that the
plane will fly straight when the stick is in the center position. Before adjusting the
servo trim, please make sure that when both the stick and the servo trim is in its
center position, (1) the servo arm is perpendicular to the push rods, and (2) the
elevator and rudder of the plane is flush with the tail wing.
8
Warning!!! : Do not shorten the length of the receiver antenna by cutting off
any excess wire. This will severely affect the operating range and could result
in injury to yourself and others..