This high performance, compact and lightweight (AVCS) Angular Vector Control System gyro was developed for model helicopters. Because the sensor and control circuit are integrated, it is simple to install.

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 JR Digital servos. These have a different pulse.

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

Features
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.
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.
Included high-speed S9254 Digital Servo boasts 47 oz-in torque and a speed of .06 sec/60deg
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.

Specs
GY401 Gyro
Length: 1.1 in. (27mm)
Width: 1.1 in. (27mm)
Height: 0.79 in. (20mm)
Weight: 0.95oz (27g)

S9254 Digital Servo
Length: 1.6 in. (40mm)
Width: 0.79 in. (20mm)
Height: 1.4 in. (36.2mm) not including horn
Weight: 1.8oz (50g)
Torque: 47 oz-in.
Speed: .06sec/60deg


Manual