GYA440 Airplane Gyro - Elevator or Rudder useCompact and lightweight, the GYA440 is designed to control the elevators (pitch axis) or rudder (yaw axis). Features include simple set up and S. BUS S. BUS2 connectivity. Stabilizes flight, even with hard to control scale models. Compatible with elevator or rudder control The GYA440 can choose and use an elevators or a rudder. Remote gain function The remote gain function allows the sensitivity of the gyro to be adjusted from the transmitter and the