Manual Futaba CGY750 V 2.0 (page 19 of 27) (English)

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(1) Rudder gyro expert setting: start display

Use the mode [+] or [-] keys to navigate through the menu.

UDDER

YRO

XPERT

ETTING

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RUD GYRO EXPERT MAP

(5) Control delay In [default: 3D=15, Sports=12] [ranges: 0

20]

This parameter sets the delay as you move the stick from neutral toward left or right. Larger

values result in a softer tail rotor feel off center. This parameter must be adjusted individually for

LEFT and RIGHT tail rotor commands. Use the data [+] or [-] key to adjust the value.

(6) Control delay Out [default: 3D=12, Sports=10] [ranges: 0

20]

This parameter sets the delay when the stick is returned back to the neutral position. This pa-

rameter is useful to tune how aggressively the tail rotor stops following a pirouette. The higher the

value, the softer the stop. This parameter must be adjusted individually for LEFT and RIGHT tail

rotor commands. Use the data [+] or [-] key to adjust the value.

(3) Pirouette speed [default: 3D=720deg/sec] [ranges: 100~999deg/sec]

This parameter adjusts the maximum pirouette speed of the tail rotor that the gyro will allow at

100% dual rate. The bottom of the line shows the actual pirouette speed of the rudder. Use the

data [+] or [-] key to adjust the maximum commanded pirouette rate.

Expert Gyro and Governor Deﬁnitions and Tuning Section

Push

MODE

+/– key

(7) F/F mixing rate [default: 0%] [ranges: -100% ~ +100%]

Feed Forward mix is used to counteract sudden increases in torque from the motor during fast

collective pitch changes. If you notice a tail kick, using (right rudder on Clockwise rotor disk, left

rudder on CCW) F/F mixing can be tuned to reduce the tail kick.

(8) F/F mixing acceleration gain [default: 0%] [ranges: 0

200%]

In low head speed situations where a lot of F/F Mixing might be needed, acc. gain boosts the

input and removes it immediately after to help cure the sudden change in torque, but it does not

allow the large tail rotor input to alter the axial behavior of the helicopter.

LT.

une

XPERT

ETTING

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FLT.Tune EXPERT MAP

(2) Dead band (AIL and ELE combined) [default: 4.0μS ] [ranges: 0μS

25.0μS]

Transmitter control dead band. If you are noticing inconsistent swashplate drift or poor initialization

it could be poor TX potentiometer resolution. If you have to increase past 10.0 it is best to check

calibration on your TX.

(6) Head Response [default: 1] [ranges: 1

10]

Head Response matches the gyro control speed to that which the helicopter is capable of reacting.

In a standard helicopter a Head Response of 1 should always be used, but on some scale

applications, or uniquely designed rotor heads, increasing head response might be needed to cure

over correction of the gyro.

(1) Flight tune expert setting: start display

Use the MODE[+] or MODE[-] keys to navigate through the menus

(3) Head hold [default: 80%] [ranges: 0%

200%]

Heading hold aspect of the gyro control. If the helicopter is not holding angle or cyclic control rates,

increasing the heading hold gain will improve holding the helicopter at a certain angle and improve

the cyclic rate consistency. If this is set too high you could see an oscillation on that axis. Lowering the

heading hold below default would be used if the transmitter gain is reduced and a consistent oscillation

is still not ﬁxed during ﬂight. (HeadHld A

→

Aileron HeadHld E

→

Elevator)

(4) Stop tune A [default: 80%] [ranges: 0%

250%]

Cyclic stop tuning on the aileron axis. If the helicopter continues to coast after an after an ail

roll, lowering “StpTuneA” will create a harder stop action to remove the coasting. If the helicopter

bounces on the aileron axis after an aileron control input, increasing “StpTuneA” will reduce bounce.

(5) Stop tune E [default: 80%] [ranges: 0%

250%]

Cyclic stop tuning on the elevator axis. If the helicopter after an elevator ﬂip continues to coast,

lowering “Stop

tune E” will create a harder stop action to remove the coasting. If the helicopter

continues to coast after an elevator ﬂip, lowering the “Stop

tune E” will reduce bounce.

When CondMenu is ON, this

changes into CondMenu.

When CondMenu is ON, this

changes into CondMenu.

When CondMenu is ON, this

changes into CondMenu.

When CondMenu is ON, this

changes into CondMenu.

Push

MODE

+/– key

(9) Data reset

(7) Data reset

RUD.Ex

FLT.Tu

(4) Rudder exponential [default:-20%] [ranges: -100%

+100%]

This parameter sets the feel of the tail rotor control around center. When set to [0] the control curve is linear.

Using a [+] value the tail rotor will be more sensitive around neutral, and using a [-] value will soften the feeling

around neutral. The RUD EXP parameter in your transmitter can also be used to tune the tail rotor to a desired

feeling.

(2) Rudder servo neutral setting [default: 0 μS] [ranges: -140μS ~+140 μS]

This parameter is used to set the neutral position of the rudder servo. Position the rudder servo

arm as perpendicular as possible to tail rotor pushrod prior to making adjustments with this pa-

rameter. Press the data [+] or [-] key to make adjustments.

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Futaba CGY750 V 2.0 Manual

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