Enter the serial number:

Enter the captcha code below:

Submit Close
  • One-click Hover, Self-hover.
  • 4 Flight Modes: Normal, Auto-balance, Auto-hover, Gyro Off.
  • Standard wing type, Delta-wing and V-tail.
  • Remote Master Gain.
  • Servo Frequencies: 50Hz/125Hz/250Hz;
  • Separated gain adjustment for each flight mode.
  • Automatic stick centering.
  • HV (8.4V) operating voltage supported.
  • Futaba S.Bus / S.Bus 2 supported.
  • Easy to use, extremely well-suited to beginners.

After installing the gyro, the servos will move more frequently than before, it is highly recommended that a reliable UBEC or ESC be used to provide sufficient working current for the servos on the plane, otherwise the gyro may become unstable by an occasional voltage drop. A large capacitor (3300uF/16V) can be used to get a more stable and secure voltage level. You just need to simply plug it into any open slot of the gyro or the receiver.

Flight Mode

A3 Supports 4 flight modes, including Normal, Auto-balance , Auto-hover and Gyro Off mode. You can switch them using a 3-way switch on the transmitter. But if you are using a 2-way switch instead then you can only use 2 of them during flight. The color of the LED shows you that the flight mode currently selected, as shown below.

  Flight Mode Colors of LED Description
1 Normal Blue Normal Stabilization Mode
2 Auto-balance Red Self-balance Mode
3 Auto-hover Blue & Red Self-hover Mode
4 Gyro Off Off Gyro deactivated mode

 

A3 allows you to choose 4 kinds of mode definitions for the 3-way switch, the factory default is Mode-1 (Normal-Balance-Hover). You can change it through function 7 in the setting menu, as shown below.

  Modes Position-1 Position-2 Position-3
1 Mode-1 * Normal Auto-balance Auto-hover
2 Mode-2 Normal Gyro Off Auto-balance
3 Mode-3 Normal Gyro Off Auto-hover
4 Mode-4 Auto-balance Gyro Off Auto-hover

 

Normal Mode

Normal mode is the most basic application of the gyro. In this mode, the gyro will sense angular velocity on each axis and make a momentary reaction. The normal mode is suitable for all types of fixed-wings, it can effectively improve the stability of your plane specially on a windy day.

Auto-balance Mode

The auto-balance mode is designed for the new beginners or the FPV applications. When operating in this mode, the controller will command the plane to maintain level flight automatically when you release the sticks. When switch it to this mode from any other modes in an emergency, the plane will recover to the level flight automatically, which we call "one-click rescue".

Auto-hover Mode

The auto-hover mode is another form of the self balance ability of the controller. The only difference is that the correction from the gyro will be applied to both pitch and yaw axes, to keep the plane always vertical. When switch to this mode, the plane will lift its nose and start to hover automatically, which we call "one-click hover".

Gyro Off Mode

Choose this mode to disable the gyros for all channels. The plane will be completely under the control of the radio. The plane will go back to its previous performance when operating it in this mode. Usually it is only used to test.

 

One-click Hover and Auto-hover

A new flight mode which we call Auto-hover was added in new A3. When operating in this mode, the self-balance ability will be applied to both elevator and rudder. The plane can hold its hover attitude without any control except the throttle.

 

After switching to auto-hover flight mode, you only need to control the throttle to maintain enough pulling force for the plane. This mode can be used to reduce the difficulty of hover practice.

 

One-click Rescue and Auto-balance

The auto-balance mode is designed especially for the beginners or FPV applications. When operating it in this mode, the controller will help the plane achieve level flight automatically. It can be also used to recover the plane from any other attitudes, or help to get a stable takeoff and landing.

 

Installation Cases

The new A3 series can be attached flat or upright, to maximize the use of space for your plane.

   

 

Caution Notes

  • Please confirm the 13-bit unique product series number (S/N) on the bar code label when purchasing. This number can be verified at our website and it is also required in the after-sale service, please keep it securely!
  • Before power on, put the aileron, elevator and rudder sticks in the middle position. The gyro needs to perform self-calibration and stick centering after you plugging in the battery, the LED will keep blinking Blue rapidly for about 3 seconds while calibrating, just don't move the plane and the sticks until the initialization is done.
  • It's extremely important to verify that the gyro reacts in the correct direction before flight, or it could lead to losing control or even crash during flight!
  • You need to restart the gyro after changing the receiver type to make new setting take effect.
  • Never use the delta-wing or V-tail mixing functions of your transmitter.
  • The new A3 series supports a wide working voltage from 5 to 8.4V, HV receiver or servo can be used directly.
  • The radio control models are not toys. The propellers rotate at high speed and pose potential risk, please carry out debugging and flying in open space far away from the crowd. The beginner should be directed by someone experienced.

 

Specifications

  • Input Voltage: 5 to 8.4V
  • Servo Travel: 1520 ± 500μs
  • Gyroscope: ± 2000dps
  • Accelerometer: ± 4g
  • Operating Temp: -40 ℃ ~ 85 ℃
  • Size: 43 × 27mm
  • Weight: 11 g

 

Port Description

The new A3 series provides 5-channel inputs and 3-channel outputs. You only need to connect the receiver and servos to the corresponding pins on the side of the gyro. The knobs are used to adjust the gain for each flight mode, clockwise for increase, anticlockwise for decrease. Futaba's S.Bus and S.Bus 2 are supported by new A3 series now.

 

Standard Receiver

If a standard receiver is being used, you just need to connect the corresponding channels to the pins AIL, ELE, RUD, MOD and GAIN using the included receiver wires. The aileron, elevator and rudder should be always connected or it could not work. The MOD is used for flight mode control, if you don't connect it the flight mode will be set to normal as the default. The GAIN is used to adjust the master gain remotely. If you don't connect it the gain will be set to 100% all the time as the default. Wiring is as shown in the figure below.

 

Futaba S.Bus

The Futaba's S.Bus/S.Bus 2 is also supported by A3. Because the S.Bus is a single-line solution all channels are transmitted via one single line you need to establish the first 6 channels in the correct order in your transmitter before use. Here we use a R7008SB receiver as an example because it supports both S.Bus and S.Bus 2. You need to change the mode for the R7008SB before using its S.Bus outputs, please refer to the manual of it.

 

The gyro must be firmly mounted on the platform of the airframe by using the provided double-sided tape, as close to the CG as possible. The gyro can be attached flat or upright. However, the servo connector pins must always point toward the rear of the plane (the shorter side with the setting button must always point toward the heading direction). There're 4 mounting orientations supported, as shown below.

 

 

Setting Menu

Press and hold down the button for more than 2 seconds (long press), release it when the LED starts to blink Blue&Red rapidly. In the setting menu, the LED should be blinking Blue&Red for N times in a loop with the sequence by the chart below. N stands for the number of the setting function.

 

 

Functions

When you reach the function that you wish to operate in, quickly press the button once (short press) to enter it.

 

Parameters

After entering a function, the color of the LED shows you the settings currently selected. Each short press of the button advances the option to the next value. When you finish making your selections, just wait for 5 seconds then system will save the modified and back to the setting menu automatically. The colors corresponding to the options for each parameter are as shown in the chart above. (* is the default setting).

 

Exit Setting Mode

When back to the menu, long press the button again to exit the setting mode.

 

Stick Centering

A3 will perform a stick centering automatically every time it starts, so a manual centering is no longer needed. You just need to keep all the sticks ( except throttle) in their middle position before power on the gyro, and don't move them while initializing. You can change the trims or sub-trims settings in your transmitter anytime you need, the new center positions will be relearned and saved by the controller next time it starts.

 

Level Calibration

This function is only used for auto-balance mode, to establish the appropriate level attitude of the plane. After first time installation, or if the plane drops down or up when switch to auto-balance mode, you will need to perform a level calibration to make the gyro re-learn a new correct level reference. Follow the steps as shown below.

1. Power on the plane and wait until the initialization is done.
2. Place the plane on the ground horizontally. In order to get a better result, it is recommended that you would need to make the nose of the plane slightly upwards.
3. Enter setting mode and select function 9, when the LED starts to blink Blue & Red, it means that the calibration is being performed. It will take you about 5 seconds, don't move the plane during this period.
4. After the calibration is done, exit the setting mode and fly it again.

 

Vertical Calibration

This function is only used for auto-hover mode, to establish the appropriate vertical attitude of the plane. After first time installation or if the plane cannot hold hovering correctly when operating in auto-hover mode, you will need to perform a vertical calibration to make the gyro re-learn a new hovering attitude. Follow the steps as shown below.

1. Power on the plane and wait until the initialization is done.
2. Pick the plane up and make it vertically, both in elevator and rudder directions.
3. Enter setting mode and select function 10, when the LED starts to blink Blue & Red, it means that the calibration is being performed. It will take you about 5 seconds, don't move the plane during this period.
4. After the calibration is done, exit the setting mode and fly it again.

 

Device Reset

Press and hold the button while power on the controller, you will see both Blue and Red LED turn on. Keep holding the button for more than 4 seconds and don't release it until you see the LED flashes Blue & Red twice, which indicates that all the settings have been restored to the factory default.

 

Gain Adjustment

There are 3 knobs on the controller (GAIN1, GAIN2 and GAIN3), they are used to adjust the gyro gain for each flight mode separately. Clockwise for increase, anticlockwise for decrease. The gain is affected by many factors there is no standard answer to that how much it should be. You need to fine-tune to get the best result during flights. We suggest you always start with a lower volume for the first flight and then increase it gradually. The basic gain (normal gain) will take effect in all flight modes, it's the most basic feature of the gyro, don't turn it to 0% anyway. In order to get the best performance in auto-hover mode, you could try to turn the hover gain on full volume.

 

Remote Master Gain

The GAIN is used to control the master gain remotely. You can make a linear adjustment by using a knob or slider on your transmitter, or make a 3-level gain control using a 3-way switch. The master gain is just an optional channel that the gyro can still work properly without connecting this channel.

 

The package contains 4 receiver wires and 2 pieces of double-sided tapes.

 

Feature Comparison of A3 Series

 对比项目 A3 Super II A3 Super New A3 New A3-L A3 Pro SE
 Hardware
 Sensor 6-axis 6-axis 6-axis 3-axis 3-axis
 MCU 32-bit 8-bit 8-bit 8-bit 8-bit
 Input Channels 7 6 5 5 4
 Output Channels 5 5 3 3 3
 Flight Mode
 Gyro Off Mode
 Normal Mode
 3D AVCS Mode  
 Auto-balance Mode    
 Auto-hover Mode      
 User-defined Mode        
 Gain Adjustment
 Gain adj. for each Flight Mode  
 Gain adj. for each Channel    
 Remote Master Gain  
 Gain Rate    
 Functions
 Stick Control Mode        
 Dual Aileron      
 Dual Elevator      
 Delta-wing, V-tail
 Standard Receiver
 Futaba S.Bus/S.Bus 2    
 H.V. (7.4V)   Since H/W V1.1
 Setting Mode PC / Program Card PC / Program Card Button Button Button
 Response Rate      
 Servo Frequecy 50/65/165/200/270/333Hz 50/63/83/125/250Hz 50/125/250Hz 50/125/250Hz 50/133Hz
 Travel Limit      
 Stick Deadband      
 Firmware Update