Futaba Gyro-SMM Dual Axis - SECOND HANDPLEASE NOTE THIS IS SECOND UNIT BUT UNUSED As with the GY350 & GY351 the GY352 incorporates both the SMM sensor technology as well as Futaba's AVCS control system. However, its main feature is its Dual Axis capability. Incorporating two SMM sensors mounted in different planes allows the control of two axis on the aircraft and so by mounting the gyro in different positions Aileron and Elevator or Elevator and Rudder could be gyro assisted at the same