Futaba GY401+S9257 AVCS Gyro and S9257 Tail Servo Combo  [GY401+S9257]

Stable yaw control with Futaba GY401+S9257

The Futaba GY401+S9257 set provides a straightforward route to smoother helicopter handling. The GY401 AVCS gyro with SMM tech and the S9257 digital servo work in concert to limit unwanted rudder changes and keep the model tracking true.

What the GY401 AVCS gyro delivers

Designed for lightweight installation, the GY401 brings the Angular Vector Control System to small airframes, automatically compensating for trim shifts from wind or load changes. SMM technology further reduces subtle rudder drift so you spend less time trimming and more time flying.

Why the S9257 is suitable for helis

The S9257 digital servo provides quick, precise movement to match the GY401's corrections. Rated at 23oz-in torque and 0.08 sec/60 deg speed across 4.8V to 6.0V, it offers the balance of speed and control needed for tight tail work.

Suited to pilots who need dependable tail stability without complex setups, the Futaba GY401+S9257 supports precise stick feel and consistent tracking in varied conditions.