Futaba S9404 Coreless Servo for Aerobatic and 3D Models  [S9404]

Controlled Precision with the Futaba S9404

The Futaba S9404 is engineered for sharp, repeatable motion where accuracy matters. Its coreless motor architecture reduces mechanical irregularities to promote steadier actuation under load.

Coreless Design Explained

Removing the standard magnet core results in a motor that responds more smoothly to input changes. The Futaba S9404 benefits from that smoother response, giving a more faithful translation of stick movement to control surface action.

Built for Aerobatic Performance

For pilots executing advanced aerobatics and demanding 3D sequences, the Futaba S9404 supports rapid control throws and consistent centring, making it a sensible choice for rudder and elevator roles.