Futaba GYA431 Airplane Dual Servo Gyro

Tower Stock# FUTM0784  •  Manufacturer Stock# GYA431
Futaba GYA431 Airplane Dual Servo Gyro (large view)
Notes from our tech department:
This is the Futaba GYA431 Dual Servo Airplane Gyro.


Lightweight gyro developed to control the elevators (pitch axis) or
ailerons (roll axis)
Remote gain adjustment
Stabilizes flight with even hard-to-control scale model airplanes
Mode switching function allows AVCS/NORMAL gyro mode switching
S.Bus and S.Bus2 compatible
Sensitivity Trimmer, LED Monitor, Two Servo Compatibility in
S.Bus and S.Bus2 mode only, and Digital/Analog servo function.
One year limited warranty through Hobby Services beginning at date of


Futaba GYA431 Gyro, Red and Black Extension Cords, Wiring Strap, Mini
Screwdriver, two sections Sensor Tape and Instruction Sheet


Gyro Sensor: MEMS vibrating structure gyro
Operating Voltage: DC4.0V - 8.4V
Current Drain: 30mA (excluding a servo)
Operating Temperature Range: -10C to +45C
Dimensions: 0.81 x 0.81 x 0.43" (20.5 x 20.5 x 11mm)
Weight: 0.12oz (3.5g)


Dual servo output is only available when using with S.BUS.

To install, plug the servo into port 3.
Port 2 can be used for remote gain by connecting it to the
desired channel on the receiver. If not using remote gain,
gyro sensitivity can be adjusted using the limit trim.
When using S.BUS, port 2 can be used for the second aileron or
elevator servo.
Port 1 is used for the servo channel from the receiver when not
using S.BUS input, otherwise it is connected to the S.BUS
network via the receiver or another S.BUS device.
When not using S.BUS, the Aileron/Elevator switch has no effect.
When using S.BUS, the Aileron/Elevator switch determines the channel
this gyro will accept input from. Putting the swich in the
aileron position will set input to channel 1. Putting the
switch to the elevator position will set input to channel 2.

When using with S.BUS, channel assignments for this gyro are fixed:
Aileron: CH 1
Elevator: CH 2
2nd aileron: CH 6
2nd elevator: CH 9
Gyro sensitivity, aileron: CH 5
elevator: CH 7

modified phijwa 12/5/12
jxs 10/02/12

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