Futaba GY520_S9257 High-Speed Tail Control Kit with S9257 Servo  [GY520_S9257]

Sharper Tail Stability Using Futaba GY520_S9257

The Futaba GY520 Heading Hold Gyro together with the S9257 High-Speed Digital Servo delivers improved tail stability and accurate heading maintenance for RC helicopter pilots. This set adapts well between calm F3C work and aggressive 3D manoeuvres.

Responsive PID Control Design

Built small and light, the GY520 houses both the sensor and control electronics in one compact unit to minimize added weight. Its high-speed PID control algorithm enables precise, fast corrections while MEMS-on-chip architecture increases reliability.

Wide Servo Compatibility and Timing

The GY520 supports both analog and digital servos and runs at 280Hz in 1520uS mode and 506Hz in 760uS mode to match a range of tail servos. The AVCS-based design helps keep the tail locked on heading under load.

Quick Setup and PC Tuning Options

Users can configure the GY520 using the front button and LED indicator for quick tweaks, or connect via Futaba CIU-2 USB adapter for PC-based programming and more granular tuning.

The Futaba GY520 paired with the S9257 servo is a compact, high-performance option for pilots who prioritise precise tail behaviour and quick servo response.