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Futaba GY401 Head Lock Gyro

  • Our Price: $110.00

  • SKU: GY401

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GY401 Gyro with SMM Technology from Futaba

This is a High Performance,Compact and Lightweight (AVCS) Angular Vector Control System gyro developed for model helicopters.

Because the sensor and control circuit are integrated, it is simple to install.


AVCS System: Since the rudder trim changes (caused by wind and other meteorological changes);

the front, rear, and other heli attitudes change and are automatically cancelled;

tail (rudder) operation is easy, making it perfect for 3D flight.

SMM Gyro Sensor: Use of this newly developed technology virtually eliminates rudder trim changes during flight (see COMMENTS).

Digital Servo Compatible (DS Mode):

DS mode makes it compatible with Futaba digital servos.

This maximizes the high-speed response performance of the Digital Servo.

Remote Gain Function and Mode Switching Function Remote:

Gain function allows sensitivity switching from the transmitter

and mode switching function allows AVCS/normal gyro mode switching.

Integrated, compact and lightweight design made possible by high density mounting technology.

Conductive Resin Case: This case improves EMC (Electrostatic and electromagnetic interference) resistance.


One GY401 gyro

One mini plastic adjustment screwdriver

Three mounting pads

One instruction sheet


Length: 27mm

Width: 27mm

Height: 20mm

Weight: 27g

Voltage- use only with a 4.8V battery. (if you use it with a higher voltage battery it needs to be regulated to 6V)


Can be used in helicopters and airplanes (Due to 0-100% Gain Adjust).

The new SMM (Silicon Micro Machine) technology is the integration of mechanical elements,

sensors, actuators and electronics all brought together on a common substrate chip.

This hobby industry first, results in a gyro sensor with an unprecedented level of functionality, reliability, and sophistication.

This will not work with the JR Digital Servos. These have a different pulse

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