My model configuration is as follows :-

Helicopter: Trex 500L Dominator
Transmitter: Jumper T16 Pro (Open TX)
Receiver: FrSky D8R-II ACCST with Telemetry (PWM)
FBL: Spirit GT with Geolink

Receiver channel mapping

Throttle unassigned
Aileron 2. channel
Elevator 3. channel
Rudder 4. channel
Gyro Gain 5. channel
Pitch 6. channel
Bank 7. channel

Stabi configuration

Bank 0 disabled
Bank 1 coaxial
Bank 2 rescue normal (enabled with negative gyro gain)

Tail Gyro configuration

Position 0 -50 (gyro normal)
Position 1 50 (heading hold)
Position 2 60 (heading hold)

I have discovered that coaxial and rescue modes will only work correctly if the gyro channel is set to a negative value. I knew that a negative gyro value was required to allow rescue mode to work but did not realise that a negative gyro value was required to allow stability modes to work.

I can get around the issue by programming a channel 5 overide mix in the transmitter to ensure that the gyro channel is set to -50 whenever I engage bank 1 or bank 2.

Is my observation correct or have I made an error in the way I have configured my system?

Thanks for your support

Alan

Hello,

your observation is perfect.

Here you can see full description of how it can be configured:
http://manual.spirit-system.com/index.p ... Stabi_mode

You can also assign dedicated channel instead setting of a negative gyro gain.

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Spirit System developer