Parameter explanation
Status-LED Stick deadband
purple very small
red flashing small
red medium
blue flashing large
blue very large
106.4 Torque precompensation/RevoMix (F)
The advantage of always knowing the collective and cyclic inputs allows MICROBEAST
PLUS to help the tail gyro holding the tail in position. It can precompensate for the torque
variations on the tail rotor, just before any noticeable deviation occurs. This method of
torque precompensation (RevoMix) relieves the tail control loop and improves the tail
performance, especially when using MICROBEAST PLUS on helicopters with insufficient
tail authority and/or extreme motor torque (e.g. overpowered electric helicopters) where
the tail does blow out for a short moment when applying a sudden collective or cyclic input.
In general you can see the compensation when you move the collective or cyclic control
sticks. With precompensation activated the tail rotor has to produce a deflection which
must counteract the rotor torque. Since at 0° pitch the least torque is applied by the main
rotor, also the tail rotor makes the least deflection and the tail slider is in center position.
If you pitch in positive or negative direction or move aileron or elevator control, a deflection
will be added to the tail rotor which will act against the torque of the main rotor. For
helicopters with clockwise rotating main rotor, the precompensation has to always push
the tail to the left (nose of the heli to the right). For helicopters with the main rotor
turning anti-clockwise, the precompensation has to push the tail to the right (nose of the
heli to the left). The deflection will be to the same direction, whether positive or negative
pitch, as the torque only increases. So when doing the adjustment first of all check which
direction is needed for your helicopter. Then choose the amount of precompensation from
the given preset or adjust freely using the StudioX Software/StudioXm App.
When doing the adjustment on the device the rudder servo will directly move into
the direction of compensation. So you can easily see, where the tail will move when
adding pitch. When precompensation is set to ”high” the servo will move further than
with ”low”, so you get an additional visual reference of what you're adjusting at the moment.
Status-LED Torque precompensation/RevoMix
purple off
red flashing low - normal direction
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