FUTABA 4VF-FM User manual

INSTRUCTION MANUAL
FM 4 CHANNELS FOR AIRCRAFT AND SURFACE
R
Digital Proportional R/C System
4CHANNEL
SYSTEM
CONTROL
RADIO
OUTPUT
1M23N01708 4VF(V2)
4VF-FM

Thank you for purchasing a Futaba SKYSPORT 4.
Before using your SKYSPORT 4, read this manual carefully and
use your R/C set safely.
After reading this manual, store it in a safe place.
APPLICATION, EXPORT, AND RECONSTRUCTION
(a) When this product is exported from Japan, its use is to be approved by the Radio Law of the
country of destination.
(b) Use of this product with other than models may be restricted by Export and Trade Control Regula-
tions. An application for export approval must be submitted.
3. Modification, adjustment, and replacement of parts
Futaba is not responsible for unauthorized modification, adjustment, and replacement of parts of this
product.
1. This product may be used for model airplane or surface use if on the correct frequency.
The product described in this manual is subject to regulations of the Ministry of Radio/Telecommuni-
cations and is restricted under Japanese law to such purposes.
2. Exportation precautions
THE FOLLOWING STATEMENT APPLIES TO THE RECEIVER (FOR U.S.A.)
This device complies with part 15 of the FCC rules. Operation is subject to the following two condi-
tions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired
operation.
THE RBRCTM SEAL (FOR U.S.A.)
The RBRCTM SEAL on the (easily removable) nickel-cadmium battery contained in Futaba products
indicates that Futaba Corporation of America is voluntarily participating in an industry program to
collect and recycle these batteries at the end of their useful lives, when taken out of service within the
United States. The RBRCTM program provides a convenient alternative to placing used nickel-cad-
mium batteries into the trash or municipal waste which is illegal in some areas.
Futaba Corporation of America's payments to RBRCTM makes it easy for you to return the spent bat-
tery to Futaba for recycling purposes. You may also contact your local recycling center for informa-
tion on where to return the spent battery. Please call 1-800-8-BATTERY for information on Ni-Cd
battery recycling in your area. Futaba Corporation of America's involvement in this program is part of
its commitment to protecting our environment and conserving natural resources.
NOTE: Our instruction manuals need to encourage our customers to return spent
batteries to Futaba or a local recycling center in order to keep a healthy environment.
RBRCTM is a trademark of the Rechargeable Battery Recycling Corporation.
-No part of this manual may be reproduced in any form without prior permission.
-The contents of this manual are subject to change without prior notice.
-This manual has been carefully written. Please write to Futaba if you feel that any corrections or clarifications
should be made.
-Futaba is not responsible for the use of this product.
See the glossary page 20 for a definition of the special terms used in this manual.

11
11
1
BEFORE USE.............................................................................7
SET CONTENTS ................................................................................................................. 7
NAME AND HANDLING OF EACH PART.......................................................................... 8
TRANSMITTER OPERATION AND MOVEMENT OF EACH SERVO ............................. 11
INSTALLATION AND ADJUSTMENT .....................................12
CONNECTIONS ................................................................................................................ 12
ADJUSTMENTS ................................................................................................................ 14
FOR SAFETY .............................................................................2
MEANING OF SPECIAL MARKINGS................................................................................. 2
PRECAUTIONS DURING FLIGHT...................................................................................... 3
NICD BATTERY CHARGING PRECAUTIONS .................................................................. 4
OTHER PRECAUTIONS ..................................................................................................... 5
STORAGE AND DISPOSAL PRECAUTIONS.................................................................... 5
USING OTHER FUNCTIONS ...................................................15
USING THE FREQUENCY BOARD.................................................................................. 15
SERVO HORN................................................................................................................... 15
NON-SLIP ADJUSTABLE LEVER HEAD ........................................................................ 15
STICK LEVER SPRING TENSION ADJUSTMENT.......................................................... 16
TRAINER FUNCTION ....................................................................................................... 16
CHARGING THE NICD BATTERY ................................................................................... 17
REFERENCE ............................................................................18
RATINGS........................................................................................................................... 18
TROUBLESHOOTING ...................................................................................................... 19
GLOSSARY....................................................................................................................... 20
Repair Service ..................................................................................................................21
TABLE OF CONTENTS

22
22
2
FOR SAFETY
FOR SAFETY
To ensure safe use, observe the following precautions.
MEANING OF SPECIAL MARKINGS
Pay special attention to the safety at the parts of this manual that are indicated by the
following marks.
DANGER Procedures which may lead to a dangerous con-
dition and cause death or serious injury to the
user if not carried out properly.
Procedures which may lead to a dangerous con-
dition or cause death or serious injury to the user
if not carried out properly, or procedures where
the probability of superficial injury or physical
damage is high.
Mark Meaning
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.
CAUTION
Symbol: ; Prohibited ; Mandatory
WARNING

33
33
3
FOR SAFETY
PRECAUTIONS DURING FLIGHT
WARNING
PROHIBITED ITEMS
Do not fly simultaneously on the
same frequency.
Interference may
cause a crash.
Do not fly in the following places:
-Near other R/C flying fields (within
about 3km)
-Near people on the ground, or ob-
jects in the air
-Near homes, schools, hospitals, or
other places where there is a lot of
people
-Near high tension lines, high struc-
tures, or communication facilities
Radiowave interference and obstructions
may cause a crash. A crash caused by
trouble in the R/C set, or the model itself,
may cause death or property damage.
Do not fly when you are tired, sick,
or intoxicated.
Fatigue, illness, or intoxication will cause
a loss of concentration or normal judg-
ment and result in operation errors and a
crash.
Do not fly on rainy or windy days, or
at night.
Water will penetrate into
the transmitter and
cause faulty operation,
or loss of control, and
cause a crash.
*Use of the same frequency will cause inter-
ference even if the modulation method (AM,
FM, PCM) is different.
Simultaneous flight on
the same frequency
prohibited
Rain
Do not fly
Wind
Night
MANDATORY ITEMS
Extend the antenna to its full
length. Always test the digital proportional R/C
set before use.
Any abnormality in the digital proportional
R/C set, or model, may cause a crash.
*Before starting the engine, check
that the direction of operation of each
servo matches the operation of its
control stick. If a servo does not move
in the proper direction, or operation is
abnormal, do not fly the plane.
Test
If the antenna is too
short, the effective
range of the
radiowaves will be-
come shorter.
Extend to
full length
CHECK ITEMS
Check that the transmitter antenna is not loose.
If the transmitter antenna comes off during use, control will
be lost and the model will crash.

44
44
4
FOR SAFETY
CAUTION
PROHIBITED ITEMS
When placing the transmitter on the
ground during flight preparations, be
sure that the wind cannot knock it over.
If it is knocked over, the throttle stick may be
pushed to full high and the engine will race and
create a dangerous situation.
Do not touch the engine, motor,
and FET amp during and imme-
diately after use.
They are hot and will cause a burn.
MANDATORY ITEMS
When turning on the power switch
After setting the transmitter throttle stick to
maximum slow,
1. Turn on the transmitter power switch,
2. Then turn on the receiver power switch.
When turning off the power switch
After stopping the engine,
1. Turn off the receiver power switch,
2. Then turn off the transmitter power switch.
If the power switch is turned
off in the opposite order, the
engine may go to full throttle
unexpectedly and cause an
injury.
*Maximum slow: Direction in
which the engine or motor
runs at the slowest speed.
Power ON
Power OFF
17
Install frequency
board
When adjusting the digital
proportional R/C set, always
stop the engine, except when
necessary.
If the engine suddenly goes to high
speed, it may cause an injury.
When flying, always install
the frequency board to the
transmitter antenna.
When the fre-
quency was
changed, also
change the fre-
quency board.
Use the
special charger
WARNING
MANDATORY ITEMS
Always charge the nicd
battery before each flight.
If the battery goes dead during
flight, the plane may crash.
Charge the digital proportional R/C nicd bat-
tery with the special charger, or digital propor-
tional R/C quick charger, sold separately.
Overcharging may cause burns,
fire, injury, blindness, etc. due to
overheating, breakage, electro-
lyte leakage, etc.
NICD BATTERY CHARGING PRECAUTIONS

55
55
5
FOR SAFETY
CAUTION
PROHIBITED ITEMS
Do not use commercial nicd penlight
batteries.
During quick charging,
the battery holder con-
tacts may overheat and
damage the equipment,
or prevent charging.
Use
prohibited
Penlight
nicd battery
Do not short the nicd battery connec-
tor terminals.
Shorting the terminals may cause sparking
and overheating and result in burns or fire.
Do not drop or apply strong
shock to nicd battery.
The battery may be shorted and cause
overheating or breakage and electro-
lyte leakage and result in burns or dam-
age by chemical mater.
Shock
prohibited
OTHER PRECAUTIONS
CAUTIONS
PROHIBITED ITEMS
The plastic may melt and fail to function.
Do not get fuel, waste oil, etc. on
plastic parts.
MANDATORY ITEMS
Always use Genuine Futaba
transmitter, receiver, servos,
FET amp, nicd battery, and other
optional parts.
Use genuine parts
Futaba is not responsible for damage,
etc. caused by the use of parts other
than Genuine Futaba parts.
Use the parts described in the instruc-
tion manual and catalogs.
STORAGE AND DISPOSAL PRECAUTIONS
WARNING PROHIBITED ITEMS
Touching and operating the digital propor-
tional R/C set, or licking the battery, may
cause injury or damage due to chemical
matter.
Do not leave the digital proportional
R/C set, battery, model airplane, etc.
within the reach of small children.

66
66
6
FOR SAFETY
Do not throw the nicd battery into a fire or heat the nicd battery. Also, do not
disassemble or rebuild the nicd battery.
Breakage, overheating, and electrolyte leakage may cause injury, burns, or blindness.
MANDATORY ITEMS
When not flying the model, store the digital proportional R/C set with the nicd
battery in the discharged state. Recharge the nicd battery before the next
flight.
If a partially discharged nicd battery is recharged many times, its memory effect will reduce
the flight time substantially and may cause a crash, even if the battery is recharged.
Nicd battery electrolyte
The electrolyte in the nicd battery is a strong alkali and can cause blindness if it gets
in the eyes. If you get the electrolyte in your eyes, immediately wash your eyes with
water and see a doctor. If you get the electrolyte on your skin or clothes, it may cause
a burn. Immediately wash it off with water.
CAUTION
PROHIBITED ITEMS
Do not store the digital propor-
tional R/C set in the following
places:
-Where it is very hot (40C/104F or
more) or very cold (-10C/-14F or less).
-Where the set will be exposed to di-
rect sunlight.
-Where the humidity is high.
-Where there is strong vibration.
-Where it is dusty.
-Where there is steam and heat.
Storing the digital proportional R/C set in
the places above may cause distortion
and trouble.
MANDATORY ITEMS
If the digital proportional R/C set
will not be used for a long time, re-
move the nicd batteries from the
transmitter and the model and
store them in a dry place.
If the batteries are left in the transmitter
and model, the battery electrolyte may
leak out and degrade the performance
and shorten the life of the transmitter and
model.
Nicd battery recycling
Used nicd batteries are an important resource. Stick tape over the terminals and take
the used batteries to a nicd battery recycling center.

77
77
7
BEFORE USE
BEFORE USE
SET CONTENTS
After opening the carton, first check if the following items are provided. The set
contents depend on the type of set.
Charger
Receiver
Nicd Battery
or Battery
holder
Transmitter
Receiver
Servo
NR-4QB
If the set contents are incomplete, or if you have any questions, please contact the
dealer.
R127DF R115F
T4VF
S3003
(x4)
Battery
holder
(not for USA)
Servo horn
frequency board
Servo tray
Neck strap
Receiver Swich
Extension cord
R148DF
S3101
(x2) S3003
(x3)
NR-4K NR-4J
Others

88
88
8
BEFORE USE
NAME AND HANDLING OF EACH PART
TRANSMITTER T4VF (FRONT PANEL)
Operates the instructor transmitter when
using the trainer function. The student
transmitter can be operated only while
this switching is being pressed.
Displays the transmitter battery voltage.
When the needle deflects to the boundary
between the silver and red zones, re-
charge or replace the battery.
Trainer switch Level meter
Antenna
Servo reversing switches
Switches that reverse the direction of operation of the servos.
The lower position is the normal side and the upper position is the
reverse side. Operating direction display
REV.: Reverse side
NOR: Normal side
Channel display
AIL.: Aileron (CH1)
ELE.: Elevator (CH2)
THR.: Throttle (CH3)
RUD.: Rudder (CH4)
OUTPUT
POWER
WORLD LEADING MANUFACTURER OF R/C
SERVO REVERSER
AIL. ELE. THR. RUD.
REV.
NOR.
O N
Hook
Carrying bar
Elevator trim lever
(Mode 1)
Throttle trim lever
(Mode 2)
Elevator(Mode 1)
Throttle(Mode 2)
/ rudder stick
Rudder trim lever
Power switch
In the upper position, the
power is turned on.
Aileron trim lever
Throttle(Mode 1)
Elevator(Mode 2)
/ Aileron stick
Throttle trim lever
(Mode 1)
Elevator trim lever
(Mode 2)

99
99
9
BEFORE USE
TRANSMITTER T4VF (REAR PANEL)
Connects the trainer cord when using the
trainer function.
(The trainer cord is sold separately. )
(See page 16 for a the trainer function op-
eration instructions.)
Trainer jack
Use when replacing the battery .
Slide the cover downward while pressing
the part marked "PUSH".
Battery cover
TRANSMITTER T4VF (SIDE PANEL)
Charging jack when the transmitter was
converted to nicd battery system.
(See page 17 for a description of the
charging method.)
Charging jack
PUSH


1010
1010
10
BEFORE USE
RECEIVER
R127DF
Battery connector
Antenna
R115F (not for USA)
FP-R115F
1
2
3
4
5
SERVO
<ACCESSORIES>
The following items are supplies with
the set:
-Spare servo horn: Use to match the
application.
-Servo mounting parts: Rubber bush-
ing, grommet, wood screw
Crystal
The crystal is replaced from the back of
the receiver.
7
6
5
4
3
2
1
B
Dual Conversion
FP-R127DF
FM
7CHANNEL
RECIVER
Antenna
Crystal
The crystal is replaced from the side of
the receiver.
Output / battery connector
"1": Aileron servo (CH1)
"2": Elevator servo (CH2)
"3": Throttle servo (CH3)
"4": Rudder servo (CH4)
"5": (Not used) (CH5)
"6": (Not used) (CH6)
"7": (Not used) (CH7)
"8": (Not used) (CH8)
"B": Battery connector
D
UAL
ONVERSION
C
FP-R148DF
FM
8 CHANNEL
MICRO
RECEIVER
1
2
3
4
5
6
7
8/B
R148DF
Antenna
Mounting flange
Servo horn
To receiver
S3003
S3101

1111
1111
11
BEFORE USE
TRANSMITTER OPERATION AND MOVEMENT OF EACH SERVO
Before making any adjustments, learn the operation of the transmitter and the move-
ment of each servo. (In the following descriptions, the transmitter is assumed to be in
the standby state.)
AILERON OPERATION
When the aileron stick is moved to the
right, the right aileron is raised and the
left aileron is lowered, relative to the di-
rection of flight, and the plane turns to the
right. When the aileron stick is moved to
the left, the ailerons move in the opposite
direction.
To level the plane, the aileron stick must
be moved in the opposite direction.
When the aileron stick is tilted and held,
the plane will roll.
ELEVATOR OPERATION
When the elevator stick is pulled back,
the tail elevator is raised and the tail of
the plane is forced down, the air flow ap-
plied to the wings is changed, the lifting
force is increased, and the plane climbs
(UP operation). When the elevator stick
is pushed forward, the elevator is low-
ered, the tail of the plane is forced up, the
air flow applied to the wings is changed,
the lifting force is decreased, and the
plane dives (DOWN operation).
THROTTLE OPERATION
When the throttle stick is pulled back, the
engine throttle lever arm moves to the
SLOW (low speed) side. When the
throttle stick is pushed forward, the
throttle lever arm moves to the HIGH
(high speed) side.
RUDDER OPERATION
When the rudder stick is moved to the
right, the rudder moves to the right and
the nose points to the right, relative to the
direction of flight. When the rudder stick
is moved to the left, the rudder moves to
the left and the nose points to the left and
the direction of travel of the plane
changes.
2.Elevator
1.Aileron
3.Throttle
4.Rudder
Left
Right
(Viewed from the rear)
Engine throttle lever moves
to the high speed side.
Engine throttle lever moves
to the low speed side.
Left Right
Down
(Mode 1) (Mode 2)
Up
High
Low
(Mode 1) (Mode 2)
Left
Left Light
Right
Down Down
Up Up
High High
Low Low

1212
1212
12
INSTALLATION AND ADJUSTMENT
FP-R115F
1
2
3
4
5
Receiver switch
CONNECTION EXAMPLE
Receiver
R115F
Aileron
(CH1)
Elevator
(CH2)
Throttle
(CH3)
Rudder
(CH4)
Receiver battery holder
*Insert four batteries.
*When using 5 or more servos,
use the nicd battery sold separately.
*The number of servos depends
on the set.
INSTALLATION AND ADJUSTMENT
This section describes the installation method and adjustment method after installa-
tion when installing the receiver, servos, etc. to the plane.
CONNECTIONS
Connection examples are shown below. Make the connections matched to the type of
set.
Receiver switch
CONNECTION EXAMPLE
Receiver R127DF
Aileron
(CH1)
Elevator
(CH2)
Throttle
(CH3)
Rudder
(CH4)
Nicd battery
*The number of servos depends
on the set.
7
6
5
4
3
2
1
B
Dual Conversion
FP-R127DF
FM
7CHANNEL
RECIVER
(not for USA)

1313
1313
13
INSTALLATION AND ADJUSTMENT
WARNING
CONNECTOR CONNECTION
Insert the receiver, servo, and bat-
tery connectors fully and firmly.
If vibration, etc. causes a connector to
work loose during flight, the plane may
crash.
RECEIVER
VIBRATIONPROOFING
/ WATERPROOFING
Vibrationproof the receiver by
wrapping it in sponge rubber or
some such material. If the receiver
may get wet, waterproof it by plac-
ing it in a plastic bag.
If the receiver is subjected to strong vi-
bration and shock, or gets wet, it may op-
erate erroneously and cause a crash.
RECEIVER ANTENNA
Do not cut or bundle the receiver
antenna. Also, do not bundle the
antenna together with the servo
lead wires.
Cutting or bundling the receiver antenna
will lower the receiver sensitivity and
shorten the flight range and cause a
crash.
<Antenna installation>
For aircraft, attach the antenna to the top
of the tail.
Attach the antenna with
a rubber band, etc.
Use a rubber bushing, etc. at the part at
which the antenna comes out of the fuselage
so that it will not break. Also tie a knot in the
antenna wire inside the fuselage so that the
antenna cannot be pulled out.
Operate each servo horn over its
full stroke and adjust so that the
pushrod does not bind or is not too
loose.
SERVO THROW
Unreasonable force applied to the servo
horn will adversely affect the servo and
drain the battery quickly.
SERVO INSTALLATION
Install the servos to the servo
mount, etc. through a rubber
bushing. Also install the servos so
that the servo case does not di-
rectly touch the servo mount or
other parts of the fuselage.
Rubber
bushing
Grommet
Servo mount
Servo
Wood screw
POWER SWITCH
INSTALLATION
When installing a receiver power switch
to the fuselage, cut a rectangular hole
somewhat larger than the full stroke of
the switch knob and install the switch so it
moves smoothly from ON to OFF.
Also install the switch where it will not
come into direct contact with engine oil,
dust, etc. Generally, install the switch to
the fuselage at the side opposite the muf-
fler exhaust.

1414
1414
14
INSTALLATION AND ADJUSTMENT
The operating direction, neutral position, and steering angle of each servo are ad-
justed. CAUTION
The basic linkage and adjustments of the fuselage conform to the fuselage
design drawings and kit instruction manual. Be sure that the center of gravity
is at the prescribed position.
ADJUSTMENT PROCEDURE
Before making any adjustments, set
all the SERVO REVERSER switches
on the front of the transmitter to the
lower (NOR) position. (Switch the
switches with a small screwdriver,
etc.)
ADJUSTMENTS
Turn on the transmitter and receiver
power switches and make the follow-
ing adjustments:
1Check the direction of opera-
tion of each servo
If a servo operates in the wrong direction,
switch its SERVO REVERSER switch.
(The direction of operation can be
changed without changing the linkage.)
*Note that the direction of the aileron
servo is easily mistaken. (Page 11)
SERVO REVERSER
AIL. ELE. THR. RUD.
REV.
NOR.
2Check the aileron, elevator,
and rudder neutral adjustment and
left-right (up-down) throw.
Check that when trimmed to the center,
the servo horn is perpendicular to the
servo and check the neutral position of
the fuselage control surfaces (aileron, el-
evator, rudder, etc.). If the neutral posi-
tion has changed, reset it by adjusting the
length of the rod with the linkage rod ad-
juster.
Rod
Perpendicular
When the throw is unsuitable (different
from steering angle specified by the kit in-
struction manual), adjust it by changing
the servo horn and each control surface
horn rod .
3Check the engine throttle
(speed adjustment) linkage.
Change the servo horn installation posi-
tion and hole position so that the throttle
is opened fully when the throttle stick is
set to HIGH (forward) and is closed fully
when the throttle stick and throttle trim
are set for maximum slow (backward po-
sition and lower position, respectively).
4After all the linkages have been
connected, recheck the operating
direction, throw, etc.
*Before flight, adjust the aircraft in accor-
dance with the kit and engine instruction
manuals.
5Fly the plane and trim each
servo.

1515
1515
15
USING OTHER FUNCTIONS
USING OTHER FUNCTIONS
USING THE FREQUENCY BOARD
Pass the frequency board over the
small part of the antenna and slide
it to the large part.
1Stick the band number seal to
the frequency board.
2Install the frequency board to
the antenna.
*Use side A or side B, depending on the
thickness of the antenna.
Cut off the unused side along the slot with
cutters, etc.
17
72.130MHz
Side A
Frequency board
Band number seal
(after sticking) Side B
SERVO HORN
Spare servo horns are supplied with the digital proportional R/C set. Use them ac-
cording to the application.
Use the horn set screw supplied
with the servo. If a long screw is used, the interior of the
servo may be damaged.
NON-SLIP ADJUSTABLE LEVER HEAD
The length of the stick lever head can be adjusted.
Lever head A Lever head B

1Unlock lever heads A and B by
turning them in the arrow direc-
tions.
2Set the stick to the most com-
fortable length and lock the lever
heads by turning them in the op-
posite direction of the arrows.

1616
1616
16
USING OTHER FUNCTIONS
STICK LEVER SPRING TENSION ADJUSTMENT
The stick spring strength can be adjusted.
The operating feel of the aileron, elevator, and rudder sticks can be individually adjusted.
1Remove the four transmitter
rear case screws and remove the
rear case.
2Adjust the spring strength by
turning the screw of the channel
you want to adjust.
3Close the rear case and tighten
the four screws.
Elevator
(Mode 1)
Elevator
(Mode 2)
Rudder
Aileron
(PC board)
TRAINER FUNCTION
The trainer function is a very effective way for training students. To use it, the special
trainer cord (sold separately) is necessary.
The special trainer cord can be connected to SKYSPORT4, FF5, SKYSPORT6, 7U series,
8U series, and PCM1024Z series transmitters.
OPERATING
INSTRUCTIONS
*Connect the student and instruc-
tor transmitters with the trainer
cord.
Instructor side:
Turn on the power switch and extend the
antenna to its full length.
When the trainer switch is not pressed,
the instructor has control.
When the trainer switch is pressed, con-
trol is transferred to the student.
Student side:
Never turn on the power switch.
WARNING
Never turn on the student trans-
mitter power switch.
Turning on the power switch will cause
interference and a crash.
Set the student and instructor
transmitters to the same settings.
For example, if the direction of operation
is reversed, control will be lost and the
plane will crash.
The opposite side can only use an
FM (PPM) type transmitter.
If the modulation method is different, con-
trol is impossible.

1717
1717
17
USING OTHER FUNCTIONS
CHARGING THE NICD BATTERY
WARNING
Never plug the special charger
into an AC outlet other than speci-
fied.
If the charger is plugged into an AC outlet
other than specified, overheating, spark-
ing, etc, may cause burns, fire, etc.
Use the special charger, or digital
proportional R/C quick charger,
sold separately to charge the digi-
tal proportional R/C nicd battery.
Overcharging will cause burns, fire, in-
jury, or blindness due to overheating,
breakage, electrolyte leakage, etc.
CAUTION
When not using the nicd battery
charger, disconnect it from the AC
outlet.
CHARGING THE NICD
BATTERY
The transmitter and receiver nicd bat-
teries scan be charged simultaneously
or independently.
1Connect the charger transmit-
ter connector to the transmitter
charging jack and the charger re-
ceiver connector to the receiver
servo nicd battery.
2Connect the charger to a
110VAC outlet.
3Check that the charging LED
light.
4At the end of charging, discon-
nect the charger from the AC out-
let.
Charger
Receiver nicd battery
To transmitter charging jack
(Nicd battery system only)
RX:Receiver charging display
TX:Transmitter charging display

1818
1818
18
REFERENCE
REFERENCE
RATINGS
*Specifications and ratings are subject to change without prior notice.
TRANSMITTER T4VF
(2 sticks, 4 channels, FM transmitter)
Transmitting frequency: 29, 35, 36, 40,
41, 50, 60, 72, 75 MHz
Modulation method: FM (Frequency
Modulation)
Power requirement: 12V (penlight battery
X 8) or 9.6V nicd battery
Current drain: 180mA
SERVO S3003
(standard servo)
Power requirement: 4.8V or 6V (common
with receiver)
Current drain: 8mA (idle)
Output torque: 3.2kg-cm (4.8V)
Operating speed: 0.23sec/60 degree
(4.8V)
Size: 40.4x19.8x36mm
Weight: 37.2g
RECEIVER R115F (not for USA)
(5 channels, FM receiver)
Receiving frequency: 29, 35, 36, 40, 41,
60, 72 MHz
Intermediate frequency: 455kHz
Power requirement: 6V (penlight battery
X 4) or 4.8V nicd battery (common with
servo)
Current drain: 22mA
Size: 33.4X50.4X20.5mm
Weight: 29.5g
RECEIVER R127DF
(7 channels, FM receiver)
Receiving frequency: 50, 60, 72, 75 MHz
Intermediate frequency: 1st IF 10.7MHz,
2nd IF 455kHz
Power requirement: 4.8 or 6V (common
with servo)
Current drain: 10.0mA
Size: 64.3X35.8X21.0mm
Weight: 40.5g
RECEIVER R148DF
(8 channels, FM receiver)
Receiving frequency: 35, 36, 40, 41, 50,
72 MHz
Intermediate frequency: 1st IF 10.7MHz,
2nd IF 455kHz
Power requirement: 4.8 or 6V(common
with servo)
Current drain: 13mA
Size: 55.5X25.5X22.5mm
Weight: 30.4g
SERVO S3101
(Micro servo)
Power requirement: 4.8V or 6V (common
with receiver)
Current drain: 8mA (idle)
Output torque: 2.5kg-cm (4.8V)
Operating speed: 0.18sec/60 degree
(4.8V)
Size: 28x13x29.7mm
Weight: 17g