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Futaba - FUTM0807   513886200793 4513886200793
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Futaba GY401 Gyro w/SMM Technology
Futaba GY401 Gyro w/SMM Technology
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Instruction Manuals: Manual 1 (240 KB)

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Tech Notes
This is the 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.
(also known as Heading Hold Gyro)
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


GY401 Gyro-
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 5.2V)


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
updated jpg 3/16/06
updated jpg 5/23/13

– If you need more information, use these Futaba resources –
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Phone: 217-398-8970
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