98 Adjustment at the device
For the Quick Trim adjustment you have to enter PARAMETER MENU point A. To do
so briefly push the button when in operation mode, so that the yellow Menu LED next to
A will start flashing quickly (do not hold the button too long, as this will enter SETUP
MENU point A which is shown by a solid lit up LED A).
98.1 Trimming the swashplate
To activate the swashplate trimming mode make sure your tail gyro is set to Heading Lock
mode and that AttitudeControl is not active at the moment (if applicable)! Then you can
to directly adjust aileron, elevator and collective here, without taking care about the single
servos. Similar to the digital trim function of most transmitters here at PARAMETER
MENU point A you can adjust the swashplate “one click“ by tapping the aileron or
elevator stick briefly in the desired direction. To trim the collective we use the rudder
stick (left = minus, right = plus). If you want to trim the swashplate any further repeat
tapping the stick several times or simply hold the control stick pushed for a longer time
to automatically perform several trim steps. The color of the Status-LED gives you an
approximate indication of how much you did trim and when the trim has changed the
Status LED will flash for a moment.
98.2 Rudder servo
If the tail gyro is operated in Normal-Rate mode, the rudder servo must often be trimmed
precisely so that the tail rotor produces just enough thrust to counteract the rotor torque
in hovering flight. Otherwise the helicopter would constantly drift into one or another
direction on its vertical axis as the gyro only dampens sudden movements but does not
control the tail rotor‘s absolute position.
To trim the rudder servo proceed as follows: Make sure your tail gyro is set to Normal-rate
mode! By tapping the rudder stick briefly in the desired direction, you can trim the rudder
servo now. If you want to trim the rudder any further repeat tapping the stick several
times or simply hold the control stick pushed for a longer time to automatically perform
several trim steps. The color of the Status-LED gives you an approximate indication of how
much you did trim and when the trim has changed the Status LED will flash for a moment.
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