Futaba FX-40 - Manual (Page 119)

119 <Model Menu (Helicopter Functions)>
PIT to RUD mixing (Revolution mixing)
Use this mixing when you want to suppress the
torque generated by main rotor pitch and speed
changes at pitch operation. Adjust so that the nose
does not move in the rudder direction.
An acceleration function which temporarily
increases the correction rate at throttle stick
acceleration/deceleration operation can be set. The
mixing rate at acceleration/deceleration can be set.
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Setting method
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*Repeat climbing and diving from hovering at a constant
rate matched to your own rhythm and adjust the pitch so
that the nose does not deflect when the throttle is raised
and lowered.
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However, when a GY Series or other heading
hold gyro is used, since correction is performed by
the gyro, this mixing is not used. If this function is
used when the gyro operation mode is the AVCS
mode, the neutral position will change.
<Idle up condition mixing curve>
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<Acceleration function setting>
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