First of all greetings to all who contributed in this project. Is a great  an very useful work.

I am a beginner using APM.

Try to use (for the moment) APM as flight stabilisator on a standard plane upgrading from FY30A.

Using ArduPlane V2.3 with APM Planner 1.1.54.

I connected Rx and calibrated the radio.

In APM Planner Flight Data all indicators are following the movements of the APM (roll, pitch, yaw).

When selecting Raw Sensor something strange happens.

Moving the radio sticks Servo/Motor Out indicators are moving accordingly.

Moving the APM only Ch1 and Ch2 (roll and pitch) indicators are moving ok.

I meen they are following the APM movements.

Yawing (turning left-right) the APM nothing happens with Ch4 (rudder) indicator.

This indicator only moves sinchrounus with Ch1 (roll) indicator.

Can somebody explain why?