NOTES:

When testing AUTO pilot mode for the first time bring a laptop to the field.  Adjustment of some gains may be necessary.  (Roll, Pitch, Yaw and Vertical)

Adjust one gain at a time until it is corrected.  Then proceed to correct the next.

Before switching to AUTO mode make sure the heli is in a hover and do not move either stick controls.  If the sticks are moved during switching between modes then the helicopter may drift during a hover.  If this happens switch to manual mode and back to auto mode again.

Quickly switch back to Manual mode if the helicopter begins to fly very unstable in AUTO mode. 

DO NOT switch to AUTO mode if the red LED is flashing.

Before flying rotate the helicopter 90° on the ground several times and observe the white LED.  It should not come on.

For the first few flight tests land in manual mode.  Once the helicopter is tuned then an auto mode landing may be attempted.  As soon as the heli has landed then quickly switch to manual mode giving negative pitch.

The wind speed in the following videos is between 28km to 37km.  Note the white flag for reference.  This is at and further than the system's maximum wind holding specifications. 

Here's a normal hover.

Roll gain too high.

Watch the skids sway.

Roll gain too low.

Helicopter will move side to side.

Pitch gain too high.

Small rapid forward backward rocking motion.

Pitch gain too low.

Slow forward backward motion.

The YAW gain setting is for the speed the heli will rotate or "piro".

The YAW gain setting is not the holding power or "gain" of the tail gyro.

If too high, for example 1500 as shown in this video, the heli will stop rotating.  Notice how the rotation suddenly stops and back tracks a bit.

If the gain is too low, for example "0" (zero), you will have no rudder control but the gyro will continue to work.

Yaw gain is set to 900 (default) in this video.

Between 400 to 1000 is good for my setup.

Vertical gain too high.

Rapid up and down motion. 

Vertical gain too low.

Slow up and down motion