Futaba GY401+S9257 AVCS Gyro and S9257 Precision Servo Pack  [GY401+S9257]

Reliable yaw stability from Futaba GY401+S9257

The Futaba GY401+S9257 package brings together the AVCS-equipped GY401 and the responsive S9257 digital servo to improve helicopter heading control. The combination focuses on keeping rudder inputs predictable and trimming requirements low.

How the GY401 AVCS gyro helps flight stability

Compact and lightweight, the GY401 fits most model helicopter installations while the Angular Vector Control System actively counters rudder trim shifts caused by environmental changes. The added SMM technology reduces small trim wander so the model tracks more steadily.

S9257 servo characteristics

The S9257 digital servo complements the gyro with fast, accurate actuation. Its 23oz-in torque and 0.08 sec/60 deg speed within a 4.8V to 6.0V range deliver a good mix of rapid response and fine control for precise manoeuvres.

For pilots who value steady yaw control and minimal trim fuss, the Futaba GY401+S9257 offers a practical, compact solution for improved tail handling across a range of heli setups.