5.5.2.2 MAINROTOR
You control the main rotor of your helicopter model with the MAINROTOR mixer. The
PROFI TX features a universal swashplate mixer (CCPM) which can be used to
control all types of swashplate fitted with three or four linkage points / servos.
Refer to section 8.2.5 "Checking and adjusting the main rotor" on page 197 for
information on how to check and adjust the main rotor and for a detailed
description of the workflow for the MAINROTOR mixer.
To ensure that the swashplate moves in the required manner, the swashplate servos
must be connected to the receiver in the correct sequence. The channel assignment
varies according to the selected servo assignment and can be viewed at any time in
the Servo > Assign menu (see section 5.6.2 "Assignment" on page 142):
Front or back swashplate servo
Left swashplate servo (as seen from the tail)
Right swashplate servo (as seen from the tail)
Fourth swashplate servo, only useful when installed at 90°.
Geometry
Angle between the MAINROTOR-FB swashplate servo and the lateral
MAINROTOR-L. / MAINROTOR-R. servos.
Adjustment range: 90 to 150º / -90 to -150º
Default: 120º
The angle must be entered with a negative prefix "-" if the MAINROTOR-FB servo is at
the front when seen from the tail (see example 2).
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