B6 tail gyro, Tail gyro – DJI Wookong-H User Manual

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Tail Gyro

When system is powered on, you must not move your helicopter or sticks on transmitter until the system initialization is

finished (about 5 second).

Assistant Software, page-Tail Gyro:

STEP1: Please properly set your rudder servo type before you

connect your tail-gyro servo to it, otherwise your servo

might be damaged due to incorrect servo type chosen.

Analog Servo(1520us @ Receiver Speed)

Digital Servo(1520us165, 270, 333Hz),

Suggested servo type: JRDS8925HV

；Futaba S9254

Digital Servo(Digital-760us333,560Hz),

Suggested servo type: Futaba BLS251 / BLS351.

STEP2: We have [Limit A] and [Limit B](Range:-140 to +140),

which represent end-points of the tail rotor pitch. The

initial value for both is 50. Adjust these two limit value,

make sure your rudder servo can work the full range for

your tail rotor pitch, without any mechanical binding.

Otherwise, the performance of the tail-gyro will be

affected. You can identify which side of the tail rotor

pitch is represented by Limit A / Limit B like this:

1. Set one of them to 0, another to 50.

2. Move your rudder stick on your transmitter.

3. One side of the tail rotor pitch will not move.

4. This side should be related to the Limit A / Limit B

whichever you are giving value 0 to.

STEP3: Move your rudder stick, and check whether the tail rotor

pitch is working to your expected direction. If not, please

change to proper direction.

Transmitter related channels

Input

Operation

Description

Stick

Rudder command

Switch

1. Gyro working mode selection:

Rate Mode/Head-Locking Mode

2. Gyro sensitivity setting

3. Quickly slide it from rate mode to

head-locking mode for 3 times,

the command stick center position

would be reset.

You must also finish the SYSTEM CHECK procedure

in later steps, before you fly your helicopter. You might

find the Controller Output Check for tail rudder result in

opposite rudder moving directions, click [Reverse]

button to make corrections. Please see Page

错误

未

定义书签。

Rate Mode

Head-locking Mode

G Channel Value

Gyro Sensitivity & Working Mode

50%

100%

50%

100%

50%

100%

50%

100%

STEP4: Switch your Tail-Gyro working mode to [Rate Mode], take-off your helicopter and hover. If your helicopter drifts on YAW

direction obviously, then adjust your tail servo linkage until the helicopter stops drifting. Or you can use trim to fine-tune the

rudder servo.

If you used trim during the Tail-Gyro working in Rate Mode, please power off the WKH and re-start it before you wish to use

Head-Locking Mode.

STEP5: Gyro Sense setting: Set your gyro sense via transmitter, with the channel which you plug into input port-G on WKH main

controller. We suggest you start from 45% in [Head-locking mode], take off the helicopter, reduce the Gyro sense if tail got

vibrating; if the tail response too slow and drift then increase it. Land you helicopter and switch to [Rate mode], then take off

the helicopter again, fine-tune the rudder servo to make the tail stop drifting and land again. Switch the tail gyro between

[rate mode] and [Head-locking Mode] by 3 times, then center position of Tx will be recorded, now you finished the gyro

sense setting. You can identify the Tail-Gyro working mode on the status bar of Assistant Software, but that gyro sense

percentage may not be the same as your Tx reading due to different Tx manufacture.

STEP3

STEP1

STEP2