FUTABA FP-G133 User manual

TheFP-G153/G153BB/G133/G133BB isa single axis rate
gyro designed to stabilize aircraft.Like full sizeaircraft,
stabilisation is accomplished bydetecting angular accelera-
tion withthe rate gyro. Detected motion informationis fed
tothe control amplifier, which then sends a counteraction
signaltothe appropriate control surface.
•The FP-G153/G153BB isforFutaba J,M,and SG
Series (1520us neutral) digital proportional radio con-
trol sets.
•TheFP-G133/FP-G133BB is for Futaba E,F,G,H.and
LSeries digital proportional radio control sets.
•Voltage regulated gyro motorsupply maintains constant
motor speed and allowsconsistent gyroperformance. The
voltage regulator iseffectiveonly when used withan ex-
ternal 6V. (fivecell Nicad battery).
•Direction of correcting mix can beswitched at the control
amplifier (internal reverse amp switch).
•Centering of the channel being stabilized can beadjusted
bya neutral trimmer builtintothe control amplifier.
•A very sensitive magnetic motion sensor with excellent
voltage characteristics,linearsensitivity,high speed
response is used. Thisresultsinsuperiorneutralcharacter-
istics.Such characteristicsmake itideal foruse withthe
rudder channelofa model helicopteror inthe aileron/
elevatorchannel of a model aircraft.
•Large2mm diameter gyro motorshaft for longlife and
strength.
•The highest quality ball bearing is used as the motor
bearing.(G153BB/G133BB only)
•The gyro can bebypassed without affecting normaloper-
ationby turning the gyropower switch "off".
•Gyrooutput ("sensitivity") can beswitched tooneoftwo
preset outputs at the transmitter(use the retract switch if
possible, orany avail, channels).

OUTPUT ADJUSTMENT
•When usingtheswitchablegyrooutput sensitivityfeature,
connect connector(B)to the retractchannelifpossible.
However, a proportional channel can be used. The output
sensitivityswitching point willthen beat the center or
neutralarea.
*Whenthe transmitterlandinggear switchis pulled for-
ward(or down),the output sensitivitycan be adjusted
from 0 to 100%withtrimmer (1).
*Whenthe transmitterlanding gear switch is pushed
back (or up),the output sensitivitycan be adjusted
from 0 to 100% with trimmer (2). In this case, trim-
mers (1)and (2)do not interferewith each other, and
can beadjustedindependently.
•When theoutput is fixedor thereis no sparechannel (as
with4 channelset),do not connectconnector(B).Inthis
case, adjustthe output withcontrolbox trimmers(1)and
(2).(Insulate the terminalswithvinyltape so they cannot
betouched.)
*Whentrimmer (1)is0,the output can beadjusted
from0 to 50% withtrimmer(2).
*Whentrimmer (1)is 100%,the output canbeadjusted
from50to 100% with trimmer (2).
POWERSUPPLY
•When usingthe rategyrowitha separatepower supply
(utilizingthe motor voltageregulator),connect thefive
cellNicadbatterypack (6V)to connector(C).Thereby,
maintaining constant motor speed and consistentgyro
performance. A four cellNicad(4.8V)batterypack can-
not beconnected to connector(C).
•Whenevera fourcellNicadbatterypack (4.8V)isused,it
must beas a common power supply forthereceiverand
gyro. Connect the accessoryjumperconnector to con-
nector (C), when usinga 4.8 voltpower supply.
•When the receiverand gyrouse a common power supply,
rudder/servopower consumptionand thepower con-
sumed by thegyro,increasesthetotalpower consumption.
This decreasesthenumber of permissibleflights.The use
of a high capacity(4.8/1,000mA) Nicadbatteryis recom-
mended. (TheFutabaNR-4I(4.8V/1000mA)Nicad bat-
terypack can bepurchased separately.)
(C)connector
Jumper connector
FP-G133/G133BB
(C) connector
Jumper connector
Connectthe following tothe(C) connector(control am-
plifier BATT):
*Five cellNicad battery pack (6V) Our optionalNR-5PB
(6V/450mAH)Nicdbatterypack,etc.isrecommended.
*Jumper connector,when the gyro and receiver use a com-
mon power supply
EXAMPLE
Adjustment when installedina helicopter:
When using the switchable output sensitivity:
Set trimmer(1)toabout the 80% ofmaximumoutputsen-
sitivityposition(100% is fullclockwise)asa startingpoint.
Hover with the wind and readjust trimmer (1) so that "tail
hunting" does not occur.However,do not reduce output
sensitivityto a point wherethe nose willturnupwind when
"liftingoff".
Set trimmer (2)to about the 60%position when a large
rudder travelis unnecessary,such as540° stallturns, etc.
Approx.60%
Approx.80%
Control box
•Do notexpose the rate gyro to shockand vibra-
tion
•Do notdisassembleor modify the rate gyro
When theinside of thegyro must beinspected, remove
the threescrewson thesideof the case and remove the
cover.Donot loosenthescrewson the bottom of the
case. If these screwsare loosened, theneutralposition
maychangeat sensitivity orpolarity switching.
•Thisgyrois not interchangeable with other
gyros or control amps.
When requesting repairafterlong use,accident, or
ifany other troublehas occurred,describe the
problem inas much detailas possible. This will
allowus to isolatethe trouble point quickly and
reduce the repairtime.

RATE GYRO INSTALLATION
NOTE: Besure gyro is mounted as shown; for stabilization of the correctaxis.
Helicopter - For rudder use
Connect connector(A)tothereceiverrud-
derchannel and connector (D) to the rudder
servo.
Aircraft - For aileron use
Connect connector (A)tothe receiver aileron
channel and connector (D)tothe aileron
servo.
Aircraft • For elevator (pitch shaft) use
Connect connector (A)tothe receiver el-
evatorchanneland connector(D)totheel-
evator servo.
•Whenthe gyro ismount-
ed 180°out of phase, the
directionof thecorrect-
ing mixwillbereversed.
To correctthissituation,
switchtheinternalreverse
amp switchto"REV".
Aftermounting thegyro
tothe fuselage,recheck
its direction of operation.
INSTALLING THE GYRO BODY
•The best mounting positionis at the center of gravity of
the aircraft;however,itmay alsobe installeda short dis-
tance awayfromthe centerof gravity.
•Install the gyro where there is little engine vibration.
•Attachthe gyro to the fuselage withdouble-side ad-
hesive tape.
Usedouble-sided adhesive
tape
(Clean the mounting sur-
faceand stickthegyroto
itwithdouble-sideadhe-
sive tape.)
Usedouble-side adhesive
tapeabout 3mm thick and
10mm wide.
INSTALLINGTHECONTROLBOX
Using the control box nameplate as a template, drill four
holes and cut an opening forthe slide power switch.Mount
the controlbox on the fuselage,awayfromengine exhaust
and where there is minimal vibration.
-Pan head tappingscrew(2)
2x8
Switch box nameplate
Switch box(top)
Switch box (bottom)
•Wrapthe control amplifier insponge,to prevent vibration
problems.

RATEINGS
Power supply voltage
Current drain
Dimensions and weight
4.8V shared with receiver(6V forexternalsupply)
Motor: 100mA, Amplifier:20mA (at 4.8V)
Gyrobody: 1.57 x 1.65 x 1.60in.(42x 34 x 39mm)
Control amplifier:1.73 x 2.28 x .63in.(44 x 58x 16mm) - 1.61oz.(45g)
Control box:.94x 1.34x .59in.(24 x 34x 15mm) -
- 2.86 oz (69g)
.54oz.(15g)
CONNECTIONS
TheG153/G153BB and G133/G133BB are in-
terchangeable bychanging the connectors and
readjusting the neutral trimmer.
Connectto the servo(rudderservofor helicopter)
Special 6V fivecell Nicad battery
pack connector formotor reg-
ulated power supply.(Insertthe
jumper connector when a shared
powersupplyisused.)
Connect toreceiver channel
to bestabilized
(rudder channel for helicopter)
Control amplifier
(C) Connector
(A)Connector
Black
(A)Connector
G133/G133BB
(B) Connector
Gyro direction
reverseswitch
(B)Connector
G133/G133BB
White
Connected servo(rudder servoforhelicopter)
neutral trimmer (thistrimmer isoperativeeven
when the control box power switch is off).
Connectionconnector
(Can beconnected/disconnect-
edin the arrowdirection.)
Connect to receiver
retractor auxiliarychannel
(forgyrosensitivityswitching)
Gyro
body
Gyropowerswitch
Gyro output trimmer
Jumper connector
(C) Connector
G133/G133BB
(D) Connector
(D) Connector
G133/G133BB
Black