Futaba CGY750 - Manual (Page 21)

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(12) Gain change down delay [default: 3] [ranges: 1 50]
This sets the delay of the gyro gain from high to low as would occur during a switch from hover
into idle up and helps prevent the tail from feeling “loose” while the head speed accelerates to the
higher rate. Use the data [+] or [-] key to adjust the value.
R UDDER G YRO E XPERT S ETTING
RUD GYRO EXPERT
MAP 2/2
(13) Rudder histeresis [default: 7 μS] [ranges: 0 μS ~ 50 μS]
Hysteresis adjusts the range right around center of tail rotor stick travel within which a tail rotor
input will result in no rudder servo movement. The greater the value, the wider the range where
stick movement yields no servo movement. Use the data [+] or [-] key to adjust the value.
(14) Gain tracking [default: 0%] [ranges: -20% ~ +20%]
Gain tracking is another method to adjust how the tail rotor stops. For example, when there is
a bounce when stopping a left pirouette or the helicopter coasts when stopping right pirouette,
increase gain tracking in the + direction. In the opposite situation, shift the gain tracking in the -
direction.
(15) F/F mixing [default:off ]
Feed Forward mixing is activated with this parameter. F/F mixing is a pitch to rudder mix applied
outside of the gyro compensation’s control loop and before the gyro itself can even sense unde-
sired tail rotor movement. F/F mixing is handled within the CGY750. Do not attempt to use revolu-
tion or acceleration mixing within your transmitter as this will actually adjust the input signal to the
gyro and cause drifting.
(16) F/F mixing rate [default: 0%] [ranges: -100% ~ +100%]
This parameter adjusts the F/F mixing rate. The [L] low and [H] high rates are adjustable individu-
ally. Larger values will add more mixing as the collective is moved away from center towards + or
- pitch.
(17) F/F mixing acceleration gain [default: 0%] [ranges: 0 200%]
Acceleration gain is used to increase momentarily the F/F mixing rate to help compensate for
abrupt changes in collective pitch. Use the data [+] or [-] key to adjust the value.
(20) Gyro data reset
This parameter resets all of the rudder gyro parameters back to the default values. Press the data
[+] key once and [Exec ??] is shown as a confirmation. Press the data [+] key again to confirm the
operation, and all of the gyro parameters will be reset.
(18) Neutral compensation [default: on]
This function works to recall the neutral point of the rudder servo for improving tail stop motion. To
use this function effectively, hover the helicopter for about one second, and memorize the neutral
point. If flying a 3D helicopter, this function may not work as well due to the quick and aggressive
movements, so test with it turned on and off and decide which yields better stop behavior. Use the
data [+] or [-] key to enable or disable this option.
(19) Yaw smoother [default: on]
This function selects the rudder control feeling. When turned on, rudder control becomes more
exact. When turned off, rudder control authority increases. Select the rudder control feeling to your
taste. Use the data [+] or [-] key to enable or disable this function.
Rrturn to GYRO EXPERT MAP. 1/2
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+/– key
Push DATA
+/– key
Push MODE
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