Futaba S9404 High Speed Coreless Servo for 3D Flying  [S9404]

Sharp Response from the Futaba S9404

The Futaba S9404 is engineered for quick action and steady torque in high-demand flying. The coreless motor design reduces irregularities common to magnet-based servos, helping deliver a cleaner feel at the sticks.

Why Coreless Matters

Coreless motors in the Futaba S9404 produce less mechanical inertia, giving a more immediate and consistent output. That advantage shows up as crisper control inputs during rapid rolls and snaps.

Designed for Aerobatics and 3D Work

For pilots flying aggressive aerobatic sequences or precise 3D routines, the Futaba S9404 provides the speed and repeatability needed for reliable control surface operation, especially on rudder and elevator surfaces.