Baytec A3X Sport User manual

A3X Sport User Manual V1.0

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Caution Notes

 Thank you for choosing our products. If any difficulties are encountered while setting up or operating it, please

consult this manual first. For further help, please don’t hesitate to contact us via email

[email protected].

 Before power on, put the aileron, elevator and rudder sticks in the middle position. The controller needs to

perform self-calibration and stick centering after you plugging the battery, the LED will keep blinking Blue

rapidly for about 3 seconds while calibrating, 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 controller after changing the receiver type to make new setting take effect.

 Never use the delta-wing or V-tail mixing functions of your transmitter.

 A3 supports a wide working voltage from 5 to 7.4V, you can use HV receiver or servo 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.

About D/R and EXPO

When the gyro is activated, you might see that the range of movement of the servo become much larger than

before when moving the sticks. This is normal but not a problem because a rotation rate set point has been

applied to the outputs by the gyro. The sticks are not only used to control the movement of the surface, but

also the rotation rate of the plane in that axis. Anyway the controller will not change the settings of dual rate or

expo in your transmitter. The settings will always work in any flight mode.

Features

 One-click Auto Hover!

 4 Flight Modes: Normal, Auto-balance, Auto-hover and Gyro Off modes.

 3 Wing Types: Standard, Delta-wing (Flying-wing) and V-tail.

 3 working frequencies for servos：50Hz, 125Hz and 250Hz；

 Separated gain adjustment for each flight mode.

 Automatic stick centering.

 HV (7.4) operating voltage supported.

 Futaba S.Bus / S.Bus 2 supported.

 Easy to use, extremely well-suited to beginners.

Specifications

Input Voltage: 5 to 7.4V

Servo Travel: 1520 ± 500μs

Gyroscope. ± 2000dps

Accelerometer. ± 4g

Operating Temp. -40 . ~ 80°C

Size. 43 × 27mm

Weight. 11 g .

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Installation

The controller 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 controller 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.

Connection

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.

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Delta-wing & V-tail

Never use the delta-wing and V-tail mixing

functions of your transmitter, all you need is to

choose a single 4-channel fixed-wing model in

your radio any time. The right figure shows the

servo connections for a delta-wing or V-tail.

Flight Modes

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 to the

right.

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 to the right.

Gyro Directions

It’s extremely important to verify that the gyros of all

channels are reacting in the correct direction before flight,

otherwise it could lead to losing control or even crash

during a flight! To perform the examination, power on the

plane, pick it up and check by following the steps in the

figures on the left. If the gyro compensates in an incorrect

direction, reverse it at once!

Aileron Quickly move the right wing downward around

the roll axis. The right aileron surface should flap down and

the left flap up.

Elevator Quickly move the nose of the plane downward

around the pitch axis. The elevator surface should flap up.

Rudder Quickly move the nose of the plane to the left

around the yaw axis. The rudder surface should flap right.

Flight Mode Colors of LED Descriptions

1 Normal Mode Blue Gyro rate mode

2 Auto-balance Red Self-balance Mode

3 Auto-hover Blue & Red Self-hover Mode

4 Gyro Off Mode Off Gyro deactivated mode

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

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Setting Methods

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 below. (* 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 controller, 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-

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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 controller re-learn a new correct level reference. Follow the steps as shown below.

Step 1 Power on the plane and wait until the initialization is done.

Step 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.

Step 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.

Step 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 controller re-learn a new hovering attitude. Follow the steps as shown below.

Step 1 Power on the plane and wait until the initialization is done.

Step 2 Pick the plane up and make it vertically, both in elevator and rudder directions.

Step 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.

Step 4 After the calibration is done, exit the setting mode and fly it again.

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 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 controller can still work properly without connecting this channel.

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.

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