1M23N24915

V2.0~
TABLE OF CONTENTS• Introduction -----------------------------------------------------------------2• Warranty and Repair Service (in U.S.A.) ---------------------------------2• Features ----------------------------------------------------------------------2• Contents ----------------------------------------------------------------------2• Precautions ------------------------------------------------------------------3• Speciﬁcations ---------------------------------------------------------------3• Replacement and Optional Items --------------------------------------4• Gyro Sensor Installation------------------------------------------------------ 4• Connecting the CGY750 ----------------------------------------------------5• TX Set-up ------------------------------------------------------------------------- 6• Governor Installation -----------------------------------------------------6• Governor Fuselage Setting Precautions -----------------------------6• First Map ------------------------------------------------------------------------- 7• Opening Screen-------------------------------------------------------------7• Home Screen ----------------------------------------------------------------7• Warning Display ------------------------------------------------------------8• Setting Menus --------------------------------------------------------------8• S.BUS Basic Setting --------------------------------------------------------9• Swash Basic Setting ----------------------------------------------------- 10• Swash Detail Setting ---------------------------------------------------- 12• TX Aileron/Elevator Gyro Gain Set-up ------------------------------ 13• Flight Tuning Setting --------------------------------------------------- 14• Rudder Basic Setting ---------------------------------------------------- 15• Governor Basic Setting ------------------------------------------------- 16• Governor Speed Setting ------------------------------------------------ 18• Governor Operation ----------------------------------------------------- 18• Recommended Gyro Gain Settings ---------------------------------- 18• Adjustments During the Test Flight --------------------------------- 18• Tips for Using the CGY750 Governor with Electric Models ---- 18• Flight Tune Expert Setting --------------------------------------------- 19• Rudder Gyro Expert Setting ------------------------------------------- 19• Governor Expert Setting ----------------------------------------------- 20• Condition Menu ---------------------------------------------------------- 21• CGY750V2-3D-MAP ------------------------------------------------------ 22• CGY750V2-F3C-MAP----------------------------------------------------- 24• F3C Style Tuning Section ----------------------------------------------- 26
Gyro
Governor: Instructions for gyro functions: Instructions for governor functions

Technical updates and additional programming examples can be found at:www.futaba-rc.com/faq

INTRODUCTION
Aileron, Elevator (roll, pitch) section:
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• Governor section
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Fax (217)-398-7721, Tel (217) 398-0007

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CGY750 Control Box• Symptoms (including when the problem occurred)• System (Transmitter, Receiver, Servos and model numbers)• Model (Model name)• Model numbers and quantity• Your Name, Address and Telephone number

Gyro Sensor

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Mounting
ounting Pad
Pads (3)Futaba Service Center
3002 N Apollo Drive Suite 1
Champaign, IL 61822

Extension CordFEATURES
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Dust Cover (3)Adjustment Screwdriver& Governor set
Revolution Sensor

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Rudder (yaw) section:
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Magnets (2)2Sensor Mounting Bracket

PRECAUTIONS
may also move to the extent while the model is being carried out to theﬂight line. Before take off, you must visually center the tail rotor pitchslider and level the swash plate by using the transmitter control sticks.
You can also center the servos by moving the tail rotor stick full left, thenfull right, back to full left and then allow the stick to center within one
second; the same method applies for aileron and elevator servos.

Meaning of Special Markings
3D\ VSHFLDO DWWHQWLRQ WR VDIHW\ ZKHUH LQGLFDWHG E\ WKH IROORZLQJPDUNVDANGER - Procedures which may lead to dangerous conditions
and cause death/serious injury if not carried out properly.

Do not drop the CGY750 sensor onto a hard surface or subject the
CGY750 sensor to a strong shock as this may damage the sensor.

WARNING - Procedures which may lead to a dangerous conditionor cause death or serious injury to the user if not carried out properlyor procedures where the probability of superficial injury or physicaldamage is high.

Always use the supplied mounting pads or the Futaba replacement
mounting pads available from your local Futaba dealer.

CAUTION - Procedures where the possibility of serious injury to
the user is small, but there is a danger of injury, or physical damage, if
not carried out properly.
: Prohibited

Governor operating precautions: Governor
When the throttle servo is connected to the CGY750, the battery failsafe function within the CGY750 must be setup and enabled.

: Mandatory

Throttle fail safe function (transmitter setting): Use the fail safe function for the channel that turns the governor on and off to set the fail safe
position to the point at which the governor is turned off. With this setting,when the system enters the fail safe state, the governor will be turnedoff, and the receiver throttle signal (fail safe position preset) will be output directly.

WARNING
Failure to follow these safety precautions may result in severe
injury to yourself and others.
• Read through the entire manual before operating this product.
BEFORE EACH FLIGHT:

When using the condition hold function on the transmitter, always
set the throttle servo maximum operating point to less than the point at
which the governor is activated. If this is not done the governor may activate while in condition hold.

Always check the transmitter and receiver battery voltage to ensure
they have enough remaining capacity to complete the ﬂight.
Always exit programming mode before attempting to ﬂy the model.

While preparing for ﬂight or starting the engine, always ensure thethrottle remains below the governor activation point and do not selectany ﬂight modes that may activate the governor.

Only use the CGY750 with a 2.4GHz system such as the Futaba
FASST™ system, or a PCM system. Use with an FM system is strongly discouraged since interference can cause serious operational problems.

Gyro operating precautions:If you prefer to activate the governor while the model is still on the
ground, always ensure that you have at least -5 degrees of pitch in themodel before activating the governor. This negative pitch is necessary
to prevent an unexpected lift off as the governor activates and the head
speed increases to the desired RPM.

Gyro

The CGY750 requires 5-10 seconds to initialize when the poweris turned on. Do not move the helicopter and do not move the tailrotor, aileron and elevator sticks during this initialization or the
gyro may not initialize properly. Once the initialization process
has been completed the swash servos and tail servo will moveseveral times indicating that the CGY750 is now ready for ﬂight.

Periodically check the RPM sensor output to ensure proper governor
operation. Due to the high level of vibration and centrifugal forces themagnet may come loose or the sensor alignment may change. Every
10th ﬂight verify that the magnet and sensor are properly mounted.

Verify that the gyros are operating and compensating in the correct
direction before each ﬂight. If the compensation direction is incorrect
on any axis the model will become uncontrollable after takeoff.

SPECIFICATIONSVerify that the gyro is operating in the desired mode.
Verify that the gyro mounting pads are in good condition.
Verify that the gyro wires are not contacting the frame of the helicopter.
The servo type parameters within the CGY750 must match the typeof servo you are using. Incorrect setting may damage the CGY750 or
the servos, possibly resulting in a loss of control during ﬂight.
Always ensure that there is some slack in the gyro cables to help
maximize performance. Always use the supplied gyro mounting pads
to attach the gyro to the helicopter mechanics. Do not use a strap thatencompasses the CGY750 sensor. This may affect the overall performance of the gyro.
Always allow the gyro to adjust to the surrounding environmental
temperature before ﬂight. A large temperature change during use willcause drift and other operational issues.

The gyro sensor and control box have a electroconductive coating.
Do not allow any power leads or other wiring to come into contact withthese items.
If you are switching between Normal Mode and AVCS Mode in
ﬂight, please keep in mind that you must have the gyro re-learn thecenter position after making a trim change within the transmitter.
To memorize the new center position simply flip the gain switch on
the transmitter three times between Normal Mode and AVCS Mode
(NormaltAVCStNormaltAVCS) within one second. The servo will
center indicating that the new center position has been memorized.

When operating the gyro in AVCS Mode, all compensation andrevolution mixing must be disabled and any tail rotor or swash offsets
for ﬂight modes must be disabled.

Width (Controller): LQ>PP@(Gyro sensor): LQ>PP@(Revolution sensor): LQ>PP@
Length (Controller): LQ>PP@(Gyro sensor): LQ>PP@(Revolution sensor): LQ>PP@
Height (Controller): LQ>PP@(Gyro sensor): LQ>PP@(Revolution sensor): LQ>PP@
Weight (Controller): R]>J@(Gyro sensor): R]>J@(Revolution sensor): R]>J@
Operating Voltage: 9WR9'&
Current Drain: P$
Selectable Servo Frame: +]+]DQG+]5XGGHU*\URRQO\ 5DWH
Center Pulse Width: 6 +] +] ȝV +] 
Governor Resolution: +] USP
 (QJLQH530
RPM Accuracy: 
Head Speed Range: USP
Operating Temperature: )WR) &WR&Control System: 'LJLWDODGYDQFHGFRQWURO
Sensor: 0LFUR(OHFWURPHFKDQLFDO
 6\VWHPV 0(06 *\UR +DOOHIIHFWVHQVRU
Angular Velocity Range: 'HJUHHV3HU
 6HFRQG *\UR
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stick is released. This is normal operation for AVCS mode. The servos

3

GYRO SENSOR INSTALLATIONREPLACEMENT & OPTIONAL ITEMS

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Futaba PC Interface CIU-2: FUTM0951
Extension 200 mm:
Extension 350 mm:
Extension 55 mm:
Extension 80 mm:
Extension 130 mm:
Mounting Pad:
1x22x22 mm (10)WARNING

Newer high end servos and other radio equipment
are capable of placing large demands on the powersystems in use today. When using a regulator you
must ensure that the regulator is capable of supplying the current demands of the equipment you haveselected. In addition to this make sure the wiringand switch you have selected are capable of handling high current draws.

• Elevator (Pitch) axis
• Rudder (Yaw) axis
• Aileron (Roll)axis• The servo current draw can be up to 50% higher on a ﬂybarless helicopter. Always ensure your receiver battery is fully
charged before each ﬂight.

Gyro Sensor

Even though the CGY750 is a high performance
gyro and governor, it will be necessary to ensurethat the helicopter mechanics are also in optimum
operating condition. Please use the guidelines below and address all issues before installing and ﬂying the CGY750.

Important: The CGY750 gyro sensor must be mounted so that theroll and pitch sensing axis are in alignment with the helicopter. Any
misalignments over 1/2 of a degree will cause a loss in performance.
Please take extra care in this step to ensure the optimum ﬂight performance.

• The CGY750 must be used with a rigid tail rotor drive system.
Any modern torque tube or belt drive system should be adequate. Do not attempt to ﬂy the CGY750 using a wire driven
tail rotor system.

• The bottom of the CGY750 Gyro
Sensor must be perpendicular to
the main shaft.

• Always ensure the drive gears, torque tube, pulleys, belt,
bearings and shafts are in proper working condition. If any ofthese items are damaged or worn they must be replaced.
• The linkage rod, tail rotor bell crank, pitch slider and tail rotor
grips must operate without friction to obtain the best performance from the CGY750. Binding in the tail rotor control linkage
will decrease the performance of the CGY750 gyro and this may
also shorten the servo lifespan. Please take the time now to ensure the tail rotor system on your helicopter is working correctly
and without friction or binding.

• The roll axis must be parallel tothe tail boom and the pitch axis
must be perpendicular to the side
frame.

• Vibration will affect the CGY750’s overall performance. All
rotating components on the helicopter should be balanced
to minimize vibrations in flight. Ensure that your engine orelectric motor is running smoothly and that all vibrations havebeen addressed before installing and test ﬂying the CGY750.

TROUBLESHOOTING
If any issues are noted during ﬂight (such as drifting, inconsistent holdor inconsistent control rates) then please review the following troubleshooting recommendations.

Gyro sensor replacement:

1. Always verify that the tail rotor and swash plate mechanisms operate, and that the drive system is in proper working order.

• Each CGY750 gyro control box is calibrated speciﬁcally forthe gyro sensor included. Do not attempt to use another
CGY750 sensor with the control box as performance will suffer due to being out of calibration. The calibration process
must be completed by an authorized service center.

2. Electromagnetic interference could be causing the problem. If you
feel everything is set up correctly and that the helicopter is vibration
free, then consider moving the gyro sensor to a new location awayfrom servos, ESC and drive motors.

If your sensor needs replacement, please send the complete
unit to your region’s support center for repair.

3. Vibrations will decrease the performance of all gyro systems. Even
though the CGY750 gyro sensor is the most vibration resistant gyro
sensor available, eliminating vibrations will always improve performance. The CGY750 gyro sensor performs best when the sensor ismounted rigidly to the airframe. This is mainly due to the sensing of
all 3 axes. It is highly recommended to avoid using soft foam pads
as this may allow the gyro to bounce around on the roll and pitchaxis, causing instabilities and possible loss of control during ﬂight.

4

CONNECTING THE CGY750
OLED Display• Displays menus, parameters and status information.

Installing the Sensor Connector(1) Gyro Sensor:• Connect the gyro sensor.
WARNING*Insert the sensor connector until it is
You will feel resistance at two points
ﬁrmly locked.
when inserting the connector. Make surethat you plug in the connector completely,(2) Rsen (Revolution sensor):or connection problems may result.
• Connect the revolution sensor.

(1)
(2)
(3)

1) First resistance (incomplete
connection)(3) S.BUS:• Connect to the S.BUS output of thereceiver with the supplied extension.
Locking tab

Edit Keys• Used when setting data.
• Use the included plastic adjustment screwdriver to press
the buttons.

(4)
(5)

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(4) AIL Output:• Connect the aileron servo.

2) Second resistance (fully
connected)(5) ELE Output:• Connect the elevator servo.
(6) PIT Output:• Connect the pitch servo.
(7) TH Output:• Connect the throttle servo.
• Connect the ESC w/BEC and set theoperation mode to Gyro+THR mode.
(7) E2 2nd ELE Output:• Connect the second elevator servo.
(Swash mode: H4-00 or H4-45)(8) RUD Output:• Connect the rudder servo.

Connection to the receiver, servos and sensors
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Your transmittershould be resetto the default
Swash Typesettings and theswash plate typeselected with thetransmitter should
be set to Normal( H -1) o r s i n g l e
servo mode. All
CCPM mixing is set up and handledwith the CGY750, and the transmitter
functions should not be used. Before
starting helicopter set-up, be surethat all dual rates, pitch curve, andendpoint values are set to 100/100.

H-1

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Using the CGY750 with a electric helicopter'HWHUPLQHWKHEHVWORFDWLRQWRSODFHWKHUHFHLYHUDQG&*<FRQWURO
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&*<J\URVHQVRUZLOOEHLQVWDOOHGLQDODWHUVWHSDANGER
It is necessary to remove the pinion gear from the electric motor
or disconnect the motor from the ESC before powering the modelup for setup or bench testing. Electric motors are extremely powerful and capable of delivering the power instantly, causing injury
to yourself, others, or the surroundings.

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TX SET-UP

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Sensor mounting
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Rotor Head Gyro Gain “RotHd.Gn”,QWKH6%86PHQXDVVLJQLQJ³5RW+G*1´WRDFKDQQHOZLOODOORZWKH
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Sensor adjustment

NOTE - Before starting helicopter set-up, be sure thatall dual rates, pitch curve, and endpoint values are set
to 100/100.

GOVERNOR INSTALLATION

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“Revolution sensor testing” PHQXZLWKLQWKH³Governor Basic Setting´SensorMagnetGovernor

1-2mm
Center of sensor
is offset.

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Sensorcase

Cooling fan

2.2mm

Magnet (Embedded in cooling fan.)

3.7mm 3.7mm

Sensor (Attached to engine ﬂange
through a stay.)7KHFHQWHURIWKHVHQVRULVGLIIHUHQWIURPWKHFHQWHURIWKHVHQVRUFDVHVR
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Governor

Throttle servo linkage precautions
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Cement the magnet to the cooling
fan so that the magnet is levelwith this side of the cooling fan.
Magnet6

FIRST MAP

The ﬁgure shows the ﬁrst layer of the editing
sequence.

Home screen
Rudder gain display

Push MODE+/– key

Push DATA+/– keyThick line
shows MODE.
Push DATA+/– keyThin line
shows DATA.

Engineruntime

Swash

OLED
Setting

Flight Tuning Expert

Condition
Menu
Gyro (RUD)

Push DATA+/– key

Maximum
Roll Rate

CondData
Cond. 1

Maximumelevator rate

When CondMenu is ON, thischanges into CondMenu.

Governor
Maximum
RPM

Condition#
indication

Push MODE +/– keyfor 1 second

OPENING SCREEN

Home SCREEN
Initial Home screen

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1. Axis indication

2. Gyro operation mode
3. Gyro gain

4. on/off switch

7. Setting Menus

5. Yaw rate comp6. Battery voltage(b) Aileron gain
display(c) Elevator gain
display(d) Gyro onlymode

1. Axis indicator Gyro
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2. Gyro operation mode

Gyro

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RUD NOR Modeat 100% gain

Neutral offset at
AVCS mode:KHQ XVLQJ WKH$9&6 RSHUDWLQJ PRGH WKH VHUYRV ZLOO QRW UHFHQWHU ZKHQWKHFRQWUROVWLFNLVUHOHDVHG,I\RXQHHGWRFHQWHUWKHVHUYR\RXFDQPRYH
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7. Condition #&XUUHQWFRQGLWLRQLVLQGLFDWHG

Return servo to center position

3. Gyro gain Gyro
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Governor warning display Governor

4. Operating condition Governor
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RII
Sensor Error Gyro

5. Battery voltage
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6. Setting Menus
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The helicopter must remain motionless during the initialization process
or a [SensorER] sensor calibration error may occur.

RPM display Governor
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Low battery

Home screen options

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1. Engine runtime Governor

The [Low Batt] warning is displayed if the receiver battery voltage falls
below the [BAT/FS] voltage set within the CGY750 Governor Expert menu.
If this condition lasts for more than one second, then the Battery Fail Safefunction activates, and the throttle servo is brought back to idle position.
This is done to warn you that the battery voltage is dangerously low and thatyou must land immediately.

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Memory writing indicator

2. OLED display options [default: Saver]

WARNING
Do not power off the CGY750 when the Memory writing symbol is displayed.

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4. Roll rate maximum display

WARNING
Always exit the Setting Menu and return to the home screen before ﬂying your model. The gyro operation is disabled within several of the settings menus to ease set up.
Always check the operation of the CGY750, verify that the controls areoperating the correct direction and ensure the gyros are correcting in theproper direction for all axes prior to attempting to ﬂy the model.

Gyro

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5. Elevator rate maximum display

Gyro

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6. Maximum RPM Governor

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8

S.BUS BASIC SETTING
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S.BUS BASIC MAP
Push MODE+/– key(1) S.BUS connection setting:start display
Use the mode [+] or [-] keys tonavigate through the menu.
Setting ranges common: 1 ~ 16ch, DG1,
DG2, INH

WARNING
Always verify that the S.BUS function assignments match your transmitter’s function(in the FUNCTION menu) assignments. If any
changes are made within the transmitter function assignments, then it will also be necessary
to make the changes within the S.BUS function
assignments.

(2) S.BUS setting: Aileron channel [default: 1ch]
Using the data [+] or [-] keys to set the correct channel number.

(3) S.BUS setting: Elevator channel [default: 2ch]
Using the data [+] or [-] keys to set the correct channel number.

(4) S.BUS setting: Throttle channel [default: 3ch]
Using the data [+] or [-] keys to set the correct channel number.

(5) S.BUS setting: Rudder channel [default: 4ch]
Using the data [+] or [-] keys to set the correct channel number.

(6) S.BUS setting: Pitch channel [default: 6ch]
Using the data [+] or [-] keys to set the correct channel number.

(7) Rotor head gain: AIL and ELE gain channel [default: 9ch]
Using the data [+] or [-] keys to set the correct channel number.

(8) S.BUS setting: RUD gain channel [default: 5ch]
Using the data [+] or [-] keys to set the correct channel number.

(9) S.BUS setting: RPM channel [default: 7ch]
Using the data [+] or [-] keys to set the correct channel number.

(10) S.BUS setting: GOV. on/off channel [default: 8ch]
Using the data [+] or [-] keys to set the correct channel number.

(11) S.BUS setting: Condition on change channel [default: DG1]
Using the data [+] or [-] keys to set the correct channel number.
NOTE: DG1/DG2 are the C1/C2 recommended channels for changing Condition Data.

Push DATA+/– key(12) S.BUS data reset
This resets the S.BUS channel assignments back to the defaults. Press the data [+] key and [Exec??] will be displayed as a conﬁrmation. Press data [+] to conﬁrm the reset back to the default settings.

9

SWASH BASIC SETTING
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Start display
SWASH BASIC MAP. 1/2 (1)The editing menus are
s c r o l l e d by p u s h i n g t h e
MODE+ or – key

Push MODE+/– key(2) Setup styl [default: 3D]

Push DATA+/– key

Push DATA+ key

3D mode contains a proven set of parameters which aregood for not only 3D but also F3C ﬂying. F3C Mode is for
Advanced F3C tuning only.
*The changed menu is indicated on a map.
*When the style is changed, setting of AIL/ELE/RUD isinitialized.

(3) Operation mode [default: Gyro+Gov]
This selects the operating mode of the CGY750.
[Gyro+Gov] Both the gyros and the governor are operational.

Push DATA+/– keyWARNING
If the operating mode has beenchanged, then the CGY750 must
be reset by powering down andthen powering back up.

[Gyro+THR] The gyro is operational, and the governor isdisabled. The throttle channel from the receiver is passed
through to the [TH/E2] port on the CGY750.
[Gyro+H4] Must be selected when a [H4 xx] swash plate
type is selected. This disables the governor and throttle
servo output and the [TH/E2] port on the CGY750 is now
the second “Elevator” [E2] servo output.

(4) Servo type [default: DG:285Hz]
This selects the swash servo types. There are four kinds ofthe servo driving frequency selection, AN:70Hz, DG:95Hz,
DG:140Hz, DG285Hz. Previous version supported Analog=
AN: 70Hz and DG:1520= DG:285Hz only. All Futaba digital
servos can be operated with fastest DG:285Hz mode but
some of other brands servos do not support DG:285Hz
mode. In this case, select the proper servo driving frequency per the manufacturer’s speciﬁcations.

Push DATA+/– key

Push DATA+/– key(Conﬁrmation screen)(5) Swash type [default: H3-120]
Select the swash plate type. Pushing the DATA+ or – key,
display shows the conﬁrmation screen as [Type]? Pushing
the SET key, the type is changed. Pushing the RSET key
or no operation the key for more than 1 second, the display
returns to previous setting. When the type is changed, allswash parameter are reset.

WARNING
Read your servo instruction
sheet to determine the proper
servo settings. The servo typeparameter within the CGY750
must match the type of ser vo
you are using. Incorrect setting
may damage the CGY750 or the
servo. Incorrect setting may also
result in a loss of control during
ﬂight.

WARNINGAll of the swashplate parameters are reset when the swash
plate type is changed. Pleaseproceed through the entire setup
process before attempting to fly
the model.

(6) Swash servo direction setting [default: 1]

Push DATA+/– key

Using different servo combinations will create the proper swashplate servo movement electronic
CCPM models (eCCPM) In the H3-xx swash mode, three of the swash servos directions arechanged by pushing the DATA[+] or DATA[-] key. Choose the combination number which produceslevel swashplate travel with a collective pitch input from the transmitter. There are 8 combination
choices for the H3-xx swash mode. On H4-xx swash mode, there are 16 combination choices. After selecting the combination number, aileron, elevator, pitch, and 2nd elevator servo parameters
are automatically set.
NOTE: Occassionally the aileron or elevator function directions are reversed even though collective pitch direction is correct. In this case, change the direction of the affected function using the
SWS.Dir parameter. The sign of its value will change from (+) to (-) or vice versa.

(7) Swash direction setting [default: +]This selects the aileron, elevator and collective pitch direction. Reverse the direction when the
stick movement and swash movement are opposite.

(8) Servo neutral adjustment [default: 0μS ranges: -116~0~+116uS]
This parameter is a subtrim or individual neutral adjustment for each of the swash plate servos.
All servo arms should ﬁrst be positioned as centered as possible to the control linkage with thecollective stick positioned at 0 degrees collective usually centered at half stick. Only then and if
needed should neutral adjustments be made, and the neutral adjustment value should be kept
as small as possible. The ELE2 neutral adjustment only works if the H4-xx swash plate type has
been selected.
To use this parameter select the servo you would like to adjust and press the DATA [+] or [-] key
to position the servo as desired.

10

SWASH BASIC SETTINGSWASH BASIC MAP. 2/2
Push MODE+/– key

When CondMenu is ON, thischanges into CondMenu.

(9) Swash Rate (rate adjustment) [default: 50% ranges: 0~100%]
The Swash Rate settings are used to adjust the amount of throw-based cyclic pitch is allowed forroll (aileron) and pitch (elevator). The one setting applies to both roll and pitch axes; they are notindividually adjusted. Use the Data [+] or [-] key to make an adjustment.
(DUAL RATES MUST BE 100)
-Suggested amount of base cyclic pitch● 800 size – 10 degrees● 700 size – 9 degrees● 600 - 550 size – 8 degrees● 500 size 7 degrees● 450 and below- 6 degrees(10) Pitch Rate (rate adjustment) [default: 50% ranges: 0~100%]
When CondMenu is ON, thischanges into CondMenu.

The [PIT.Rate] is the amount of collective pitch travel allowed. A good starting range for Sport, 3D
and F3C is +/-10 to +/-12 degrees. Use the Data [+] or [-] key to make an adjustment. 50% ranges:
0~100%(11) Swash ring [default: 130%]
When CondMenu is ON, thischanges into CondMenu.

This parameter is used to prevent binding of the swash plate servos when the transmitter control
stick is moved toward a corner (for example, full right and full aft cyclic). Press the Data [+] or [-]key to adjust the value.

(12) Aileron (roll)/ Elevator (Pitch) Gyro direction setting [default: Normal]
Push DATA+/– keyThis parameter controls which direction the CGY750 (roll / pitch axis) will compensate when thehelicopter rolls (pitches). Pick the helicopter up and roll the helicopter to the right. The CGY750
should compensate by adding left cyclic to the swash plate. (Pick the helicopter up and rotate
the nose of the helicopter downward. The CGY750 should compensate by adding aft cyclic to theswash plate.) If the CGY750 compensates in the wrong direction, then it will be necessary to reverse the Compensation Direction setting by pressing the [+] or [-] data key once.

WARNING
Verify that the CGY750 compensates in the correct direction before ﬂight. If the compensation
direction is incorrect the model will roll and/or pitch uncontrollably at lift off.
Push DATA+/– key(13) Aileron direction memorizing
This parameter teaches the direction of aileron swashplate movement to the CGY750. Move theaileron stick to RIGHT full and push the DATA [+] or [-] key. The RIGHT direction of the aileron data
will be saved to CGY750. To conﬁrm the setting, move the aileron stick to full RIGHT, and the “!”mark will appear on the display. This procedure must be done for the Pirouette and Pitch compensations to function correctly.

(14) Elevator direction memorizing
Push DATA+/– keyThis parameter teaches the direction of elevator swashplate movement to the CGY750. Move theelevator stick to full back (pull) and push the DATA [+] or [-] key. The back direction of the elevator
data will be saved to CGY750. To conﬁrm the setting, move the elevator stick to full back, and the “!”mark will appear on the display. This procedure must be done for the Pirouette and Pitch compensations to function correctly.

(15) Pitch low memorizing [default: 1940μS]
This parameter saves the negative collective pitch point into the CGY750. Move the collective
pitch stick to full negative pitch and push DATA [+] or [-] key. Full negative pitch signal will be saved
to the CGY750. The display shows “!” when the stick is at the saved point. The negative collective
pitch setting must saved into the CGY750 for Pirouette and Pitch compensations and/or linkage
compensation to function correctly(16) Pitch zero memorizing [default: 1520μS]
This parameter saves the zero collective pitch point into the CGY750. Move the collective pitch
stick to zero degrees pitch and push DATA [+] or [-] key. The zero degrees pitch signal will besaved to the CGY750. The display shows “!” when the stick is at the saved point. The zero degrees
pitch setting must saved into the CGY750 for Pirouette and Pitch compensations and/or linkage
compensation to function correctly.

(17) Pitch high memorizing [default: 1100μS]

Rrturn to SWASH BASIC MAP. 1/2

This parameter saves the full positive collective pitch point into the CGY750. Move the collective
pitch stick to full positive pitch and push DATA [+] or [-] key. The full positive pitch signal will besaved to the CGY750. The display shows “!” when the stick is at the saved point. The positive collective pitch setting must saved into the CGY750 for Pirouette and Pitch compensations and/or
linkage compensation to function correctly.

11

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SWASH DETAIL MAP
1/2
Push MODE+/– key(1) Swash expert setting: start display
Use the mode [+] or [-] keys to navigate through the menu.

 3,7ĺ$,/PL[LQJUDWH>GHIDXOW@>UDQJHVa@Going from MID to HIGH and MID to LOW collective pitch check that the swash plate is travelingﬂat throughout the entire range. Using the (+/-) Data keys to level the swash plate on the aileronaxis to the middle point by raising or lowing the aileron servo.

 3,7ĺ(/(PL[LQJUDWH>GHIDXOW@>UDQJHVa@Going from MID to HIGH and MID to LOW collective pitch check that the swash plate is travelingﬂat throughout the entire range. Using the (+/-) Data keys to level the swashplate on the elevator
axis to the middle swash position by raising or lowering the elevator servo.

 3,7ĺ(/(PL[LQJUDWH>GHIDXOW@>UDQJHVa@This parameter adjusts the pitch to 2nd elevator mixing rate. The rates can both be adjusted individually for both full high and low collective positions. It is only available at H4 swash mode.

 $,/ĺ3,7PL[LQJUDWH>GHIDXOW@>UDQJHVa@At middle collective pitch check that during right to left and left to right aileron action the swash
plate is staying level on the elevator and collective pitch axis. If the swashplate is rising or fallingwith aileron inputs, use the Data (+/-) key to raise or lower the swash plate to match the middle
point during aileron inputs.

 $,/ĺ(/(PL[LQJUDWH>GHIDXOW@>UDQJHVa@This parameter adjusts the aileron to elevator mixing rate. The rate can be adjusted for left andright directions individually. It is only available for H4-45 swash mode.

 $,/ĺ(/(PL[LQJUDWH>GHIDXOW@>UDQJHVa@This parameter adjusts the aileron to 2nd elevator mixing rate. The rate can be adjusted for left
and right directions individually. It is only available for H4-45 swash mode.

  (/(ĺ3,7 PL[LQJ UDWH >GHIDXOW  +   H[FHSW + @ >UDQJHV  a
150%]
During back and forward elevator inputs at middle collective, check if the swash plate is raising or
lowering during the input. If it is moving use the Data (+/-) key to raise or lower the swash plate tomatch the middle point during elevator inputs.

  (/(ĺ$,/ PL[LQJ UDWH >GHIDXOW  +   H[FHSW + @ >UDQJHV  a
150%]
While moving the elevator back and forth at middle collective, check to make sure the aileron axis
is staying level. Use the Data (+/-) key to raise or lower to level the swash plate during full forward
and back elevator input.

 (/(ĺ(/(PL[LQJUDWH>GHIDXOW@>UDQJHVa@This parameter adjusts the elevator to 2nd elevator mixing rate. The rate can be adjusted for up
and down directions individually. It is only available for H4 swash mode.

(11) Linkage compensation aileron [default: 0%] [ranges: 0% ~ 100%]

Push DATA+/– key

At HIGH pitch and LOW pitch check to make sure that the swash plate is staying level on the elevator and collective axis when using aileron inputs. If the swashplate is raising or falling, use theData (+/-) key to keep the swash plate position the same as middle during aileron inputs.
NOTE – check all four directions: high/right; high/left; low/right; low/left(12) Compensation direction of the aileron [default: plus]
If the above Data (+/-) correction from 0-100 is NOT in the correct compensation direction, change
the value from PLUS or MINUS using the Data (+/-) key.

12

SWASH DETAIL SETTINGSWASH DETAIL MAP
2/2(13) Linkage compensation elevator [default: 0%] [ranges: 0% ~ 100%]

Push DATA+/– key

At HIGH pitch and LOW pitch check to make sure that the swash plate is staying level on the aileron and collective axis when using elevator inputs. If the swashplate is raising or falling, use theData (+/-) key to keep the swash plate position the same as middle during elevator inputs.
NOTE – check all four directions: high/back; high/forward; low/back; low/forward.

(14) Compensation direction of the elevator [default: plus]
If the above Data (+/-) correction from 0-100 is NOT in the correct compensation direction, change thevalue from PLUS or MINUS using the Data (+/-) key.

(15) Speed compensation [default: 50%(H3-120), 0%(except H3-120)] [ranges: 0% ~ 100%]
In 120 degree CCPM all servos do not travel the same distance on elevator input. Having previously
set the ELE-PIT and ELE-AIL parameters, if during FAST movement of the elevator axis the swash
plate is not staying level, use the Data (+/-) key to match all servo speeds (+ will slow the Aileron/Pitch
Servo – will reduce speed comp on Aileron/Pitch Servo)(16) Swash rotation [default: 0 deg] [ranges: -90 deg ~ +90 deg ]Push MODE+/– key

Push DATA+/– key

Using the Data (+/-) key electronically add rotor head phasing to the swash plate controls. If possible,
it is recommended to use mechanical phasing adjustment, but if the rotor head does not allow this andyou feel that the model is NOT ﬂying axially on each control input, using this parameter can be used toadjust the pure reaction of each axis in ﬂight. (Typically advanced phasing on clockwise rotor disk anda slight clockwise increase in swashplate alignment vs rotor axle are needed to create a axial reaction,
vice versa for a counterclockwise rotor disk model.)(17) Data reset

Rrturn to SWASH EXPERT MAP. 1/2

This resets all of the Swashplate 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.

TX AILERON / ELEVATOR GYRO GAIN SET-UP
Setting the CGY750 gains by using endpoints or manual adjustments: TX Set-up for adjusting cyclic gains via the transmitter.
Using the Remote Gain Functions (roll, pitch and yaw)

WARNING

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Verify that the gyro compensates in the correct direction for all
three axes before ﬂight. If the compensation direction is incorrect,
the model will roll, flip, or pirouette uncontrollably even before it
leaves the ground.

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13

FLIGHT TUNING SETTING
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FLIGHT TUNING MAP
Push MODE+/– key(1) Start display
The editing menus are scrolled by pushing the MODE+ or – key.

(2) Gyro base gain setting [default: 100% ranges: 0~150%]
This sets the Cyclic Gyro Base Gain. If the aileron and elevator Gain Channels are set to [INH]within the CGY750 [S.BUS]->Basic setting menu, then the remote transmitter gain adjustment is not available. Thus the actual working gain for the cyclic gyros is set by using data [+]or [-] keys within this parameter.
Set to 100, a TX Gain value of 100% will display 100% on the CGY750. If a pilot is in needof more gain, base gain can be increased to allow the gain on the CGY750 to be higher than100%.
NOTE – If using a 6CH or less Base Gain is equivalent to the rotor head gain and can be
adjusted manually on the gyro instead of via TX.
When CondMenu is ON, thischanges into CondMenu.

(3) Cyclic rate setting [default: 300d/s ranges: 10~500d/s]
Cyclic rate sets the maximum cyclic pitch and roll rate (d/s) as limited by the model’s ability
to reach that set rate. Pitch and roll rates are set together with this single parameter.

(4) Exponential [default: -20% ranges: -100~0~+100%]
When CondMenu is ON, thischanges into CondMenu.

Tune the exponential as desired to soften or sharpen the feel of the cyclic controls aroundcenter stick. NEGATIVE values soften control feel; POSITIVE values sharpen control feel.
NOTE that any exponential present in the TRANSMITTER adds to the value set in the
CGY750.

(5) Control Authority Aileron [default: 40% ranges: 0~100%]
When CondMenu is ON, thischanges into CondMenu.

Aileron Control Authority changes the rate at which the gyro will try to achieve the set Cyclicrate. A higher value will create a quicker accelerated reaction to a stick input to reach andstabilize to the CYC Rate value; a lower value will reach the desired CYC Rate slower andaccelerate slower to the desired angular rate. (NOTE – Setting this value too high could
lead to a jerky feeling when making FAST stick corrections, a value too low will give you theimpression the model is not following the pilot’s stick inputs. Values of 30-70 are useful for mosthelicopters.

(6) Control Authority Elevator [default: 40% ranges: 0~100%]
When CondMenu is ON, thischanges into CondMenu.

Elevator Control Authority changes the rate at which the gyro will try to achieve the set
Cyclic rate. A higher value will create a quicker accelerated reaction to a stick input to reachand stabilize at the CYC Rate value; a lower value will reach the desired CYC Rate slower
and accelerate slower to the desired angular rate.
NOTE – Setting this value too high could lead to a jerky feeling when making FAST stickcorrections; a value too low will give the impression the model is not following the pilot’s stick
inputs. Values of 30-70 are useful for most helicopters.

(7) Flight style [default: 50n ranges: 0~100n]
When CondMenu is ON, thischanges into CondMenu.

Increasing this value will create a more robotic reaction to the stick, leaving the pilot with theimpression that the model is locked into in a position after an input. It will also tend to have amore calculated feeling when making inputs.
-Lowering the value will make the model feel more ﬂuid and easy to rotate with the stick
input. The model will feel a little more lively during faster cyclic movements and directionchanges.

(8) Elevator pre compensation [default: 0 ranges: 0~100%]
On a clockwise rotating disk helicopter naturally will want to pull the nose towards the rotor
disk with positive blade pitch and push the nose away with negative pitch. In an instance ofa slower servo set-up or larger (heavier) rotor blades, a small amount of elevator pre compensation may be needed to keep the nose of the helicopter ﬂat at all times during collective
pitch changes. In MOST cases with helicopter high speed servos and standard 3D rotor
blades, this function is not needed. If you do notice a slight tendency for the nose to try torise or fall with collective input, increasing ELE COMP will reduce this behavior.

(9) High pitch authority [default: 0% ranges: 0~100%]
When a rotor blade’s angle of attack is increased, the rotor blade becomes less reactive, andin turn the helicopter might not feel as reactive at high pitch angles. If you want to increase
the reaction of the cyclic during loaded and high pitch maneuvers, HP AUTH will increase
control authority and can make the helicopter feel more linear under high pitch or a loadeddown situation. Some helicopters with direct link CCPM may use this to increase stability
at high collective pitch ﬂying as well. If a helicopter feels good for normal ﬂying, but not thesame during loaded situations, HP Authority can be used to make it feel more linear. If HP
Authority is set very high, the helicopter will feel more aggressive at high pitch than aroundneutral.

14

RUDDER GYRO BASIC SETTING
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Do not connect the tail rotor servo to the gyro until the servo type has
been selected. Operating the servo using the incorrect setting may damage the CGY750 or the servo.

RUD GYRO BASIC MAP(1) Start display
Use the mode [+] / [-] keys tonavigate the setting menus.

Push MODE+/– key
Push DATA+/– key(2) Servo type [default: DG:1520]
Select the appropriate setting for the tail rotor
servo that you are using. Use the data [+] or [-]key to choose from the following servo types:
DG1520, DG760 or Analog.
DG 760: BLS276SV, BLS251SB, BLS251, S9256, S9251
DG 1520: BLS254, BLS257, S9254, S9257

WARNING
Read your servo instruction sheet to determine the proper servo settings. The servo type parameter within the CGY750 mustmatch the type of servo you are using.
Incorrect setting may damage the CGY750
or the servo. Incorrect setting may also
result in a loss of control during ﬂight.

(3) Gyro direction [default: Normal]
Push DATA+/– keyThis parameter controls which direction the CGY750 (yaw axis) will compensate when thehelicopter rotates. Hold the tail rotor linkage over the linkage ball on the servo, pick thehelicopter up by the main shaft and rotate the mechanics counter-clockwise. The CGY750
should compensate by adding clockwise rotation pitch to the tail rotor blades. If the CGY750
compensates by adding counter-clockwise rotation pitch to the tail rotor blades, then it will benecessary to reverse the Compensation Direction setting by pressing the [+] or [-] data key.

WARNING
Verify that the tail gyro compensates in the correct direction before ﬂight. If the compensation direction is incorrect the model will pirouette uncontrollably at lift off.

(4) Limit setting [default: 100%, setting range: 50~150%]
When the CGY750 is in the Sv.Limit parameter the gyro will no longer operate and the tailservo will always center when the tail rotor stick is released.
Always exit setup functions before attempting to ﬂy the model. Before each ﬂight always ensure that the gyros are operating and compensating in the correct direction.
The Servo Limit parameter within the CGY750 is used to set the mechanical limits for the tailrotor servo. To obtain the best performance it is recommended to set the limit in the CGY750
to 100% for both directions and then adjust the servo arm length to set the mechanical endpoints. After that has been completed use the servo limit parameter to make small adjustments that could not be made mechanically. Values between 90% and 110% are considered
optimal. Navigate to the [RUD.Gyro].Basic → Sv.Limit menu and slowly move the rudder stickto the left or to the right maximum extent and use the data [+] or [-] key to increase or decrease the maximum throw. Ensure that the pitch slider does not exceed the maximum extent
of travel and cause binding.

WARNING
Push DATA+/– key

When using the CGY750 for the ﬁrst time, or when making mechanical changes involving
throw, you must check and set the servo limits again to prevent binding.

(5) Gyro working mode [default: CMT]The available choices are CMT, Normal or AVCS. The CMT mode will allow you to select either AVCS or Normal mode via the transmitter. In Normal mode the gyro will always operatein Normal Rate Mode, and when AVCS it will always operate in AVCS Mode. Use the data [+]or [-] key to select the desired working mode.

15

GOVERNOR BASIC SETTING
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MAP. 1/2
Push MODE+/– key(1) Start display
The editing menus are scrolled
by pushing the mode + or – key.

(2) RPM setting [range: 700 ~ 4000 rpm]
Setting the main rotor RPM. This is calculatedby engine revolution with the gear ratio of themain shaft.

*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

(3) Gear ratio [default: 8.00, range: 1 ~ 50]
Input the main rotor gear ratio by pushing thedata + or-key.

(4) Pole number [default: 2p, range: 2p ~ 24p]
*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

This parameter is used when using a direct phase sensor attachment to a brushless motor lead.
Input the motor pole count as speciﬁed by the brushless motor manufacturer. When using any
revolution sensor other than a direct phase sensor type, set the pole number to 2p.
NOTE: For nitro use, set to 2p.
NOTE: The input signal range of the CGY750 is 0.0v-3.0v. Exceeding this voltage range may
cause damage to the CGY750.

Push DATA+/– key*It does not display, when Opr.
mode is Gyro+THR, and when
SWASH-type is H4-00/H4-45.

Push DATA– key*It does not display, when Opr.
mode is Gyro+THR, and when
SWASH-type is H4-00/H4-45.

Push DATA+ key(5) Servo selection [default: Analog]
Select the throttle servo type. Digital servos offer the best response. The type is changed bypushing data + or – key.

(6) Stick switch
The governor can be activated by throttle stick
position. Move the throttle stick to the desired
governor on position and push SET key, memorizing that point. When you push the RSET key,
the function is inhibited. When the governor on/
off switch is inhibited, the stick switch is automatically turned on.

16

WARNING
This parameter must match the type ofservo you are using. Incorrect setting may
damage the CGY750 or the servo, possibly
resulting in a loss of control during ﬂight.

GOVERNOR BASIC SETTING

GOVERNOR BASIC
MAP. 2/2
Push MODE+/– key

Push DATA+/– key*It does not display, when Opr.
mode is Gyro+THR, and when
SWASH-type is H4-00/H4-45.

(7) Governor on/off switch [default: Inhibit]
This parameter allows turning of the governor
on and off via a transmitter switch. Pushing theSET (Data+) key activates the function. The on/off direction is changed by pushing the SET key
again. The function is inhibited by pushing the
RSET (Data-) key.

(8) Servo limit point setting
Servo limit point setting deﬁnes the overall travel range for the throttle servo. It is fundamental
for governor operation and must be set prior toother functions. Servo limits must also be reset
when the throttle linkage or trim are changed.

Push DATA+/– keyOKNG*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

WARNING
When using the CGY750 for the ﬁrst time, or
when making changes in the throw of a servo
and its linkage, always perform the limit setting
operation.

For this setting, idling position is set ﬁrst, thenhigh position as guided by the display. Pushthe data + or – key to memorize. “*Write*” isdisplayed when the setting is completed. “Error”
is displayed when the setting position is out ofrange (too little servo travel between low andhigh throttle positions).

(9) Revolution sensor testing
It tests the output level of the revolution sensor. Turn the engine by hand, and check the output
level. The display indicates the current level on left side numbers, maximum level on right side
numbers. The output level needs to be more than 60 % for correct governor operation.

(10) Sensor type

Push DATA+/– key

When CondMenu is ON, thischanges into CondMenu.

Select the type of governor sensor:-Nitro (BPS-1 backplate; Magnet Type)-1:1 Magnet “1:1 Mag” (Magnet type applied to helicopter part that turns at the same RPM as themain rotor)-HPoleEP: For Electric motors 8 poles and above-LPoleEP: For electric motors 6 poles.

(11) Governor gain
Governor Gain. Too low of number the RPM will ﬂuctuate with collective pitch and cyclic changes.
Too high of gain the RPM will oscillate and possibly surge during ﬂight.

(12) Low limit RPM
When CondMenu is ON, thischanges into CondMenu.

When CondMenu is ON, thischanges into CondMenu.

Low RPM Limit sets the minimum amount of throttle that the governor will command during anover-speed situation. Too low of value the engine could shut off or not recover power quickly
enough during the next collective movement. If the value is set too high, the governor will not control overspeed with the rotor head is unloaded.
Use:
LLmt Lrpm: For RPMS of 700-1700
LLmt Hrpm: For RPMS of 1701-4000

Rrturn to GOVERNOR MAP. 1/2

17

GOVERNOR SPEED SETTING
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* When the CGY750 is used with a ESC or BEC and a power switch is
not used there is a possibility that the intermittent connection as youconnect the ﬂight battery may cause the CGY750 initialization to fail.
Always ensure that the gyro has initialized properly by verifying thatthe gyros are compensating as the helicopter is moved. It is recommended to use a power switch on the power supply line to avoid thispossibility.

Direct set by transmitter on Gov. mixing

Rudder Gyro Trim Flight:
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Governor operation
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TIPS FOR USING THE CGY750 GOVERNOR WITH
ELECTRIC MODELS

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Safety Reminder: Remove both main and tail blades from the model
and/or disengage the motor’s pinion from the main gear before proceeding with any electric governor set up.
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RZQHU¶VPDQXDOIRU\RXU(6&

WARNING
Safety reminder: Remember to conﬁgure your transmitter fail safe
settings for not only the throttle channel but also governor ON/OFF
channel to ensure the governor correctly disengages should the radio
enter fail safe.

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WKH&*<VSHFL¿HGLQWKH*RYHUQRU%DVLFVHFWLRQRECOMMENDED GYRO GAIN SETTINGS

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450-550
600-700
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Recommended Gyro Gain
AIL/ELE Gyro
45-55.00%
50-60.00%
55-65.00%

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ADJUSTMENTS DURING THE TEST FLIGHTWARNING
Always level the swashplate using the cyclic stick before applying
throttle and spooling the main rotor blades up. During takeoff small
corrections may be necessary. If you make large corrections while thehelicopter is on the ground, it may tip over since the helicopter is ﬁrmly
on the ground and the gyros are overcompensating due to the lack of
movement.

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Some helicopters may have a tendency to resonate/shake during
spool up. Always leave the helicopter on the ground until this resonance or shaking goes away. If this issue continues, it is recommended to try some rubber skid stops or take off from a softer surface suchas grass. Vibrations contribute to this ground resonance. Verify thateverything on your model is balanced correctly.

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18

Expert Gyro and Governor Deﬁnitions and Tuning Section
FLT.Tune EXPERT SETTING
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FLT.Tune EXPERT MAP (1)Use the MODE[+] or MODE[-] keys to navigate through the menus(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 checkcalibration on your TX.

(3) Head hold [default: 80%] [ranges: 0% ~ 200%]

A
E

When CondMenu is ON, thischanges into CondMenu.

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 improvethe cyclic rate consistency. If this is set too high you could see an oscillation on that axis. Lowering theheading hold below default would be used if the transmitter gain is reduced and a consistent oscillationis still not ﬁxed during ﬂight. (HeadHld A→Aileron HeadHld E→Elevator)

When CondMenu is ON, thischanges into CondMenu.

(4) Stop tune A [default: 80%] [ranges: 0% ~ 250%]

When CondMenu is ON, thischanges into CondMenu.

Cyclic stop tuning on the aileron axis. If the helicopter continues to coast after an after an ailroll, lowering “StpTuneA” will create a harder stop action to remove the coasting. If the helicopterbounces on the aileron axis after an aileron control input, increasing “StpTuneA” will reduce bounce.

When CondMenu is ON, thischanges into CondMenu.

(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.

(6) Head Response [default: 1] [ranges: 1 ~ 10]
Push MODE+/– key

FLT.TuHead 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 cureover correction of the gyro.

(7) Data reset

RUDDER GYRO EXPERT SETTING
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NH\IRURQHVHFRQGDQGWKH%DVLFPHQXZLOOEHGLVSOD\HGRUD GYRO EXPERT MAP(1) Rudder gyro expert setting: start display
Use the mode [+] or [-] keys to navigate through the menu.

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

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

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

(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]

Push MODE+/– keyThis parameter sets the delay when the stick is returned back to the neutral position. This parameter is useful to tune how aggressively the tail rotor stops following a pirouette. The higher thevalue, the softer the stop. This parameter must be adjusted individually for LEFT and RIGHT tailrotor commands. Use the data [+] or [-] key to adjust the value.

(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 fastcollective 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%]

RUD.Ex

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

(9) Data reset

19Expert Gyro and Governor Deﬁnitions and Tuning Section
GOVERNOR EXPERT SETTING
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Push MODE+/– key(1) Governor Expert setting: start display
Push mode + or – key, to scroll through the editing menu. Pushing mode + or – key for more than
one second, brings you back to governor basic menu.

Push DATA+/– key*It does not display, when Opr.
mode is Gyro+THR, and when
SWASH-type is H4-00/H4-45.

(2) Governor working mode [default: Governor]
Sets the governing type mode.
- Governor Mode – RPM is entirely controlled by the GOV once it has engaged. The GOV will dowhatever it takes to hold a constant RPM throughout ﬂight.
- Limiter Mode – Throttle control follows the throttle curves to advance the throttle position during
ﬂight, but controls the RPM during throttle reduction by not letting the RPM over speed past the
set RPM.

Push DATA+/– key(3) Rv. Display [default: Rotor]
Rv.Disp
Rotor

Ability to choose to display desired ROTOR RPM or MOTOR RPM.

R v . Dis p
E n gin e(4) Feed Forward from Cyclic [default: 0%]
F/F.Cycl
0 %Increasing the value will add throttle with cyclic commands to aid in RPM stability.

(5) Yaw Comp [default: CW/TOP]
Yaw compensation allows the governor to more rapidly correct for changes in power demands ofthe model resulting from yaw input. Set the mode to match the gyro installing direction, either CW/
TOP, CW/BOTM, CCW/TOP, CCW/BOTM by pushing the Set key. Pushing the RSET key inhibits
the function.
At the governor only mode, this parameter is inhibited.
CW: clockwise rotor direction
CCW: counter clockwise rotor direction
TOP: Gyro top/name emblem facing up
BOTM: Gyro top/name emblem facing down
*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

(6) Revolution change up delay [default: 8] [ranges: 2 ~ 20]
How quickly the RPM changes when increasing RPM between two different RPM conditions andﬂight modes. A higher number slows the RPM change rate; a lower value speeds up the RPMchange rate.

(7) Revolution down delay [default: 10] [ranges: 2 ~ 20]
How quickly the RPM changes when reducing RPM between two different RPM conditions andﬂight modes. A higher number slows the RPM change rate; a lower value speeds up the RPMchange rate.

(8) Start delay [default: 5] [ranges: 2 ~ 20]
How quickly the RPM stabilizes to the set RPM from when the GOV is turned ON. A higher value
slows down the spool up rate; a lower value speeds up the spool up rate.

Push DATA+/– key*It does not display,when Opr.mode is
G y ro + T H R , a n dwhen SWASH-type
is H4-00/H4-45.

Push DATA+/– key(9) Low revolution setting [default: 1000 rpm ]This value is set to assign the lowest possible governing RPM. If the RPM is set below, or cannot
reach this RPM, the governor will not engage.

(10) Governor data reset
This parameter resets also the governor parameters to default settings. The “Exec.??” is displayedby pushing data + or – key for conﬁrmation. Pushing data+ or -key again completes the reset process, displays “-Exec.-”, and returns to the start display. By pushing mode+ or – key during conﬁrmation display, the reset process is aborted.

20

CONDITION MENU
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COND MENU MAP
Push MODE+/– key

Condition menu [default: OFF]

CondData
Cond. 1

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C1

Condition switch [default: DG1]
C1
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C1
Change for Setting [C1 ⇔ C2]

When you are adjusting a condition value
not in the selectedcondition, the visualappearance will be reversed.

Push MODE +/– keyfor 1 second

The condition value
can be changed regardless of selectedcondition by the TX.

Ｃ1 (Condition 1)

A

Switch DG1●SWS.Rate●PIT.Rate●SWS.Ring●FLT.Styl●CntAuthA●CntAuthE●HeadHoldA●HeadHoldE●StopTuneA●StopTuneE●CYC.Rate●EXPO●GV.Gain●LLMTLrpm●LLMTHrpm

E

Ｃ2 (Condition 2)●SWS.Rate●PIT.Rate●SWS.Ring●FLT.Styl●CntAuthA●CntAuthE●HeadHoldA●HeadHoldE

C1

C1*It does not display, when Opr.mode is
Gyro+THR, and when SWASH-type is
H4-00/H4-45.

●StopTuneA●StopTuneE●CYC.Rate●EXPO●GV.Gain●LLMTLrpm●LLMTHrpm

Switch Channel Rate
-100%

-35%

0%

C1
Narrow

21

35%

100%

C2
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：Push andSwash Basic Start

Flight Tuning Start

RUD Gyro Basic Start

Condition Basic Start

Setup Style

Gyro base gain

Servo type

Swash rate

Operation mode

Cyclic rate

Servo type

Exponential

Gyro direction

Gover Basic Start

S.BUS Basic Start

Revolution setting

Aileron channel

Pitch rate
Gear ratio

Swash type

Servo limit

Flight style

Swash direction ELE

Flight style
Rudder channel

Control Authority ELE

Swash direction AIL
Elevator pre compensation

Throttle channel
Pole number

Control Authority AIL
Gyro working mode

Swash servo direction

Swash Ring

Elevator channelŵƘƇƇƈƕ
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Servo selection
Control Authority Aileron
Pitch channel
Stick switch
Control Authority Elevator
Rotor head gain
Governor on/oﬀ switch

Swash direction PIT

Neutral adjustment

Neutral adjustment

Head hold AileronHigh pitch authority

Servo limit pointũƏƌƊƋƗ
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Head hold Elevator

StpTuneA
C1 80 %

RPM gain channel
Revolution sensor testing

Stop tune Aileron

StpTuneE
C1 80 %

Neutral adjustment

Stop tune Elevator

Governor ON/OFF channel
Sensor type

Gv. Gain
C1
40 %Neutral adjustment

Swash rate

Cyclic rate setting

Governor gain

Exponential

Low limit L rpm

Condition channel

S.BUS Reset

Gv. Gain
C1
40 %Pitch rate

Governor gain
Swash Ring
Low limit L rpm
AIL gyro direction
Low idle H rpm

ELE gyro direction

AIL direction memorizing

ELE direction memorizing

RUD gain channel

When CondMenu is ON, thischanges into CondMenu.

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Pitch low memorizing

Pitch zero memorizing

Pitch high memorizing

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Low idle H rpm

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P&H

P&H

P&H

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P&H：Push and hold（MODE)S Basic Start

on channel

ator channel

Governor Expert Start

Rudder Expert Start

Flight Tune Expert Start

Swash Detail Start

Governor working mode

Neutral adjustment

Dead band

PIT→AIL mixing rate

Revolution display mode

F/F.Cycl
0 %ttle channel

Feed Forward from Cyclic

Pirouette speed
Head hold Aileron
Rudder exponential

PIT→ELE mixing rate

PIT→ELE2 mixing rate
Head hold Elevator

der channel

Yaw rate compensation

Control delay in

S tpTuneA
C1 80 %

AIL→PIT mixing rate

Stop tune aileronControl delay out

h channel

Revolution change up delayr head gain

Revolution down delay

F/F mixing rate

Start delay

F/F mixing acceleration gain

Low revolution

Ruddre gyro data reset

S tpTuneE
C1 80 %

AIL→ELE mixing rate

Stop tune elevator
AIL→ELE2 mixing rate

Head Response

ELE→PIT mixing rate

gain channel

gain channelrnor ON/OFF channel

dition channel

S ResetGovernor data resetŪƒƙƈƕƑƒƕ
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FLT.Tune data resetũůŷőŷƘƑƈŃ
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ELE→AIL mixing rate

ELE→ELE2 mixing rate

Linkage compensation AIL

Compensation direction AILLinkage compensation ELE

Compensation direction ELE

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Speed compensation

Swash rotation
Only displayed in SWASH Type H4

Swash data resetŶƚƄƖƋŃ
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：Push andSwash Basic Start

Setup Style

Operation mode

Servo type

Swash type

Swash servo direction

Swash direction AIL

Swash direction ELE

Flight Tuning Start

RUD Gyro Basic Start

Condition Basic Start

Gyro working mode

Servo type

Swash rate

Gyro base gain

Gyro direction

Servo limit

Revolution setting

Aileron channel

Pitch rate

Swash Ring

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32

Flight mode

. Gn E L
36

Exponential

Throttle channel

Response style
Rudder channel

Control Gain AIL

Control Gain ELE

Gyro working modeŵƘƇƇƈƕťƄƖƌƆ.G nAI
32

Servo selection

Control Gain AIL.G nE L
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Pitch channel
Stick switch

Control Gain ELE
AIL gain channel
Governor on/oﬀ switch

Response style

Stability gain

Stability gain

I.Gain AI
C180 %ELE gain channel
Battery failsafe

Integral gain Aileron

Neutral adjustment

I.Gain EL
C1
80 %Elevator pre compensation

Servo limit point

RUD gain channel

Integral gain Elevator

Neutral adjustment

D.Gain AI
C1
80 %High pitch gain
Neutral adjustment

RPM gain channel
Limit point testingDiﬀerential gain Aileron

D.Gain EL
C1
80 %ũƏƌƊƋƗ
ŷƘƑƌƑƊ

Governor ON/OFF channel
Revolution sensor testingDiﬀerential gain Elevator
Condition channel
Cyclic rate setting

Response
S.BUS Reset

Swash Ring
Exponential
AIL gyro direction

Governor gain

Gv. Gain
C1
40 %Governor gain

ELE gyro direction

AIL direction memorizing

Low limit hoveringŦƒƑƇƌƗƌƒƑ
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Low limit idle up

ELE direction memorizing

Pitch low memorizing

Elevator channel

Pole number

Cyclic rate

Neutral adjustment

Pitch rate

S.BUS Basic Start

Gear ratio
Aileron separate

Swash direction PIT

Swash rate

Gover Basic Start

When CondMenu is ON, thischanges into CondMenu.

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Pitch zero memorizing

Pitch high memorizing

Rotational equalizer

Equalizer direction

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P&H：Push and hold（MODE)

Swash Detail Start

Governor Expert Start

Rudder Expert Start

Aileron Expert Start

Governor working mode

Rudder servo neutral

I.Gain AI
C1
80 %I.Gain EL
C1
80 %Integral gain

Integral gain

PIT→AIL mixing rate

Revolution display mode

Gyro basic gain

D.Gain EL
C180 %PIT→ELE mixing rate

D.Gain AI
C1
80 %Elevator Expert Start

Diﬀerential gainDiﬀerential gain

Head Response

Head Response

F / F .C ycl
0 %Feed Forward from Cyclic

PIT→ELE2 mixing rate

Rudder exponential

Yaw rate compensation

Rudder delay mode

Throttle data mode

Control delay in

Revolution change up delay

Control delay out

Revolution down delay

Stop delay

Start delay

Pirouette speed

Governor ON revolution

Gain change up delay

Battery F/S voltage setting

Gain change down delay

Low revolution

Rudder histeresis

Governor data reset

Gain tracking

Linkage compensation ELE

Feed Forward (F/F)mixing

Compensation direction ELE

F/F mixing rate

Speed compensation

F/F mixing acceleration gain

Swash rotation

Neutral compensation

Rotational tracking

AIL→PIT mixing rate
Dead band

AIL→ELE mixing rate
Aileron compensation

nnel

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ŪƒƙƈƕƑƒƕ
ŨƛƓƈƕƗ

Dead band

Roll compensation
AIL→ELE2 mixing rate

Flip compensation

Elevator gyro data reset

ELE→PIT mixing rate

ELE→AIL mixing rate

Aileron gyro data reset

ELE→ELE2 mixing rateŤƌƏƈƕƒƑŃ
ŨƛƓƈƕƗ

ŨƏƈƙƄƗƒƕ
ŨƛƓƈƕƗ

Linkage compensation AIL

Compensation direction AIL

RO T.Tr ak+ 0 .0 %Yaw smoother

Only displayed in SWASH Type H4

Swash rotation

Pitch compensation

Ruddre gyro data resetŵƘƇƇƈƕŃ
ŨƛƓƈƕƗ

Swash data resetŶƚƄƖƋŃ
ŧƈƗƄƌƏ

25

F3C Style Tuning Section
EXCLUSIVE FUNCTION WHEN CHOOSING F3C STYLE:KHQFKRRVLQJ)&VW\OHWKHIROORZLQJIXQFWLRQLVDGGHG5HIHUWRWKHSUHFHGLQJFODXVHDERXWFRPPRQIHDWXUHZLWK'(Swash Basic) Rotational equalizer [default: off]

(Governor Basic) Limit point testingThis parameter works to optimize pirouette stability during stationary and forward ﬂight. Press the DATA [+] or [-] key to turn the function on or off.

Limit point setting conﬁrms the throttle servo position at idle and full
throttle. Push data + or – key. Throttle servo moves to the setting
point indicated on the display.

(Swash Basic) Equalizer direction [default: normal](Governor Basic) Response [default: Middle]

This parameter sets the rotational equalizer direction. Setting method: When the CGY750 is in this mode, the swashplate will tilt on direction and stay that way. Observe the direction of the tilt relative tothe surface on which the model sits. Rotate the model 90 degrees
about its mainshaft clockwise or counterclockwise. The swashplateshould remain tilted in the same direction relative to the surface on
which the model sits. Adjust Equa.Dir from NORMAL to REVERSE
if needed to keep the swashplate tilt in the same direction as themodel is rotated. Correctly setting of the rotational equalizer is critical for proper ﬂight performance during pirouettes. All linkages fromservos to swashplate should be installed prior to setting direction.

This parameter selects the governor operation response. Selectthe best match for your engine type. Pushing data+ or – key, themode is changed. Recommended selection are, Middle → glow
engine, Moderate → gasoline engine, Quick → brushless motor,
Silent → electric models when RPM detection is accomplishedeither with a magnet on the motor’s rotor or with a brushless phasesensor.

(S.BUS Basic) S.BUS setting: AIL gain channel [default: 9ch]
Using the data [+] or [-] keys to set the correct channel number.

(Flight Tuning) Gyro working mode [default: CMT]The available choices are CMT, Normal or AVCS. The CMT mode
will allow you to select either AVCS or Normal mode via the transmitter. In Normal mode the gyro will always operate in Normal Rate
Mode, and when AVCS it will always operate in AVCS Mode. Use
the data [+] or [-] key to select the desired working mode.

(S.BUS Basic) S.BUS setting: ELE gain channel [default:
10ch]
Using the data [+] or [-] keys to set the correct channel number.

(Flight Tuning) Aileron gain separation [default: 6pnt ranges:
0~20pnt](Governor Expert) Throttle data mode [default: Optimize]This parameter sets the aileron and elevator of the gyro gain separation. 6pnt means the aileron gain is lesser 6 points with elevator
gain. It is useful when the aileron and elevator gain channels are
set to same channel and aileron and elevator gain are adjusted at
the same time. The rationale for this parameters lies in the fact thatmost models functionally will tolerate more gyro gain on the elevator axis than on the aileron axis.

This parameter selects the throttle input operation. Pushing data+or – key, the mode is changed.
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(Flight Tuning) Response style [default: 12n ranges: 1~20n][RespSty] tunes the overall heading hold/AVCS effect of the system. Values of 8-12 n are compatible with moderate to aggressive
ﬂying styles and are good for most sport/3D ﬂying. NOTE that withhigh(er) [RespSty] values, try to ensure that the swashplate is reasonably level prior to spool up.

C1( Flight Tuning) Stability gain setting [default: 5(Governor Expert) Governor ON revolution setting [default:60%] [ranges: 50% ~ 90%]

ranges:This parameter tells the governor at what percentage of the set
rpm it is to become active. The default value is 60 %. In this case,the governor will not engage until the engine rpm reaches 60 % of
the set rpm. If you feel that the time for governor engagement is
too slow, decrease the value to 50 ~ 55%. The starting time will befaster.

1~10]
Depending on many variables such as model, rotor blade design,
head speed, head dampening, and servo choice, the amount oftransmitter cyclic gyro gain that the model will tolerate without oscillation may be lower than the percentage that provides the moststable ﬂight. If the model is observed to be oscillating or wobblingat your chosen headspeed with low transmitter cyclic gyro gain
percentages, lowering the Stability.Gn parameter a point or two willallow for higher cyclic gyro gain without inducing a wobble or oscillation in the model.

(Flight Tuning) High pitch gain [default: 60%
0~100%](Governor Expert) Battery F/S voltage setting [default: 3.8V][ranges: 3.5V ~ 7.5V ]This parameter sets the battery fail safe and low battery alarm voltage. Set the proper voltage by the battery type. The battery characteristics are different depending on cell type/chemistry. The voltage
setting is changed by pushing DATA+ or – key. Suggested setting
voltages are as follows.

ranges:HP.gain (high pitch) sets the cyclic gyro’s internal control algorithm
gain with high or low collective pitch inputs. Increasing this parameter’s percentage results more holding power as collective pitch
is input aggressively during aerobatics, but if its value is tuned too
high, wobble or oscillation may occur.

• 4 cells NiCd or NiMH (Normal: 4.8v) = 3.8 v• 2 cells LiFe (Normal: 6.6 v) = 6.0 ~ 6.2 v• 2 cells LiPo (Normal: 7.4 v) = 7.2 ~ 7.4 v(Rudder Basic) Flight mode [default: 3D](Rudder Expert) Gyro basic gain [default: 100%] [ranges: 50%~ 120%]

Selects the flight mode. Always try the “Sports” flight mode firstand if you determine that the feel is not aggressive enough or if
the pirouette rate is not fast enough then try the “3D” ﬂight mode.
The “Sports” Flight Mode will satisfy most pilots.The ﬂight mode ischanged by pushing the data [+] or [–] key.

This parameter sets the base gain of the gyro. This can be used toadjust the gain % if your actual transmitter gain does not match thegain on the CGY750 correctly.

(Governor Basic) Battery failsafe setting [default: Inhibit]
The governor goes into the failsafe mode when the battery voltage
is below BFS.Volt. When activated, the governor is deactivated, andthe throttle servo is moved to B/FS position. When the throttle stick
is moved to idle position, the B/FS condition is deactivated for 30
seconds and then returned to B/FS after 30 seconds have passed.
Move the throttle stick to B/FS position as desired. Push set key to
conﬁrm the setting. Pushing RSET will inhibit the function.

26

(Rudder Expert) Rudder delay mode[default: Function]
Select [Function] for a softer control feel and [Constant] for a linear
and aggressive feel.

C1
C1

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(Rudder Expert) Stop delay [default: 120%] [ranges: 100% ~400%]
This parameter may also be used to adjust the aggressiveness ofthe stop but is individually NOT tuneable for LEFT versus RIGHT
tail rotor commands. Larger values will soften the tail stops resulting in less bounce. Use the data [+] or [-] key to adjust the value.

C1
C1(Rudder Expert) Gain change up delay [default: 12] [ranges: 1~ 50]
This parameter sets the delay of change of the gyro gain from low
to high when switching from idle up to hover and helps avoid thechance for tail rotor hunting during this switch. Use the data [+] or [-]key to adjust the value.

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(AIL,ELE Expert) I gain <integral gain> [default: AIL 80%
ELE 80%] [ranges: 0% ~ 200%]
I gain tunes the ability of the model to maintain a given heading.
Inadequate I gain results in a change in model heading especiallywith aggressive collective pitch input. Excessive I gain can resultin oscillations in forward ﬂight or with cyclic input. On the ELE axis
especially, excessive I gain can create bounce.

(AIL,ELE Expert) D gain <derivative gain> [default: AIL 0%
ELE 80%] [ranges: 0% ~ 250%]
D gain is best used to tune the stops following cyclic commands.
Inadequate D gain results in a large slow bounce. Excessive D gain
causes cyclic coasting with a quick bounce or oscillation in forward
ﬂight or with cyclic input.

(AIL Expert) Aileron compensation [default: 0%] [ranges:
0%~ 100%]
This parameter sets the mixing rate of the pitch to aileron mixing.
The roll axis may be affected by positive/negative collective pitch
movement as manifested by the model rolling off either to the left or
to the right during rapid ascent or descent. This mixing compensates
this effect. The mixing amount can be adjusted individually for both
positive and negative collective pitch inputs.

(Rudder Expert) 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 tailfrom feeling “loose” while the head speed accelerates to the higher
rate. Use the data [+] or [-] key to adjust the value.

(ELE Expert) Flip compensation [default: 0%] [ranges: 0%~100%]
This parameter sets the mixing rate of the elevator to aileron mixing.
The roll axis may be affected by a pitch axis (elevator) input asmanifested by the model rolling off to the left or right during ﬂips or
loops. This mixing compensates this effect. The mixing amount canbe adjusted individually for both up and down elevator stick inputs.

(Rudder Expert) 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 toadjust the value.

(AIL Expert) Roll compensation [default: 0%] [ranges: 0%~100%]
This parameter sets the mixing rate of the aileron to elevator mixing.
The elevator axis may be affected by the aileron input as manifested
by a tendency for the model to corkscrew or otherwise roll nonaxially. This mixing compensates this effect. The mixing amount canbe adjusted individually for both left and right aileron inputs.

(Rudder Expert) 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 pirouetteor the helicopter coasts when stopping right pirouette, increase gain
tracking in the + direction. In the opposite situation, shift the gain
tracking in the - direction.

(Swash Detail) Rotational tracking [default: 0%]
This parameter tunes the rotational equalizer to the pirouette characteristics of the model. When pirouetting the model at the desiredrate, observe the model’s rotor DISK (NOT the mechanics) andtune the ROT.Trak until the disk stays ﬂat during the pirouette. Find
the best average setting for both left and right pirouettes(Rudder Expert) 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’scontrol loop and before the gyro itself can even sense undesired tailrotor movement. F/F mixing is handled within the CGY750. Do not
attempt to use revolution or acceleration mixing within your transmitter as this will actually adjust the input signal to the gyro andcause drifting.

(Swash Detail) Phase equalizer [default: off]
This parameter optimizes swashplate phasing during pirouettes.
Press the DATA [+] or [-] key to turn the function on or off.
NOTE: This parameter needs rotor head RPM and direction of rotation to work correctly, so please set the rotor head RPM and direction in the governor menu. NOTE that rotor head speed informationmust still be set into the CGY750 governor menu even if using anelectronic speed control (ESC) with an electric model.

(Rudder Expert) Neutral compensation [default: on]
This parameter works to recall the neutral point of the rudder servo
for improving tail stop motion. To use this parameter effectively, hover the helicopter for about one second, and memorize the neutral
point. If ﬂying a 3D helicopter, this parameter may not work as well
due to the quick and aggressive movements, so test with it turnedon and off and decide which yields better stop behavior. Use thedata [+] or [-] key to enable or disable this option.

(Swash Detail) Pitch Compensation [default: ON]
This parameter works to hold the nose and the angle that the helicopter is set at regardless of collective pitch movements and direction changes. Press the DATA [+] or [-] key to turn the function on oroff.

(Rudder Expert) Yaw smoother [default: on]
This parameter 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 yourtaste. Use the data [+] or [-] key to enable or disable this parameter.

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2016, 1 (1)