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Before using your SKYSPORT 4YF, read this manual carefully and use your R/C set safely.
See the glossary page 19 for a definition of the special terms used in this manual.
Application, Export, and Modification
1. This product may be used for model airplane use, if on the correct frequency. It is not intended for
use in any application other than the control of models for hobby and recreational purposes. The
product is subject to regulations of the Ministry of Radio/Telecommunications and is restricted under
Japanese law to such purposes.
2. Exportation precautions:
(a) When this product is exported from the country of manufacture, its use is to be approved by the
laws governing the country of destination which govern devices that emit radio frequencies. If this
product is then re-exported to other countries, it may be subject to restrictions on such export. Prior
approval of the appropriate goverment authorities may be required. If you have purchased this prod-
uct from an exporter outside your country, and not the authorized Futaba distributor in your country,
please contact the seller immediately to determine if such export regulations have been met.
(b) Use of this product with other than models may be restricted by Export and Trade Control
Regulations, and an application for export approval must be submitted. In the US, use of 72MHz
(aircraft only), 75MHz (ground models only) and 27MHz (both) frequency bands are strictly regu-
lated by the FCC. This equipment must not be utilized to operate equipment other than radio con-
trolled models. Similarly, other frequencies (except 50MHz, for HAM operators) must not be used
to operate models.
3. Modification, adjustment, and replacement of parts: Futaba is not responsible for unauthorized
modification, adjustment, and replacement of parts on this product. Any such changes may void the
warranty.
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 conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undes-
ired operation.
Battery Recycling (for U.S.A.)
The RBRC
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 RBRC
a convenient alternative to placing used nickel-cadmium batteries into the trash or mu-
nicipal waste system, which is illegal in some areas.
You may contact your local recycling center for information on where to return the spent battery.
Please call 1-800-8-BATTERY for information on Ni-Cd battery recycling in your area. Futaba Cor-
poration of America's involvement in this program is part of its commitment to protecting our environ-
ment and conserving natural resources.
NOTE: Our instruction manuals encourage our customers to return spent batteries to a local recycling
center in order to keep a healthy environment.
TM
RBRC
is a trademark of the Rechargeable Battery Recycling Corporation.
Warning: This product contains a chemical known to cause cancer and birth defects (or other
reproductive harm).
•No part of this manual may be reproduced in any form without prior permission.
•The contents of this m anual 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.
Thank you for purchasing a Futaba SKYSPORT 4YF.
After reading this manual, store it in a safe place.
TM
SEAL on the (easily removable) nickel-cadmium battery contained in
TM
program provides

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Table of Contents
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Summary of Contents for FUTABA SKYSPORT 4YF

  • Page 1 •No part of this manual may be reproduced in any form without prior permission. •The contents of this m anual 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.
  • Page 2: Table Of Contents

    ABLE OF ONTENTS AFETY ..................Meaning of Special Markings .................2 Precautions During Flight ................2 Nicd Battery Charging Precautions ............... 4 Storage and Disposal Precautions ..............4 Other Precautions ....................5 ..............6 EFORE Set Contents ...................... 6 Name and Handling of Each Part ..............7 Transmitter Operation and Movement of Each Servo .......10 ......11 NSTALLATION AND...
  • Page 3: For Safety

    AFETY 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. Mark Meaning Procedures which may lead to a dangerous condition and DANGER cause death or serious injury to the user if not carried out properly.
  • Page 4 Always test the digital proportional R/C Extend the antenna to its set before use. full length. Any abnormality in the digital proportional R/C set, If the antenna is or model, may cause a crash. collapsed, the ef- fective range of *Before starting the engine, check that the Test the radiowaves...
  • Page 5: Nicd Battery Charging Precautions

    Ni-cd Battery Charging Precautions (If using a Ni-cd battery) Charge the digital proportional R/C nicd WARNING battery with the special charger, or digi- tal proportional R/C quick charger, sold Always charge the nicd separately. battery before each flight. Overcharging may cause burns, fire, injury, blindness, etc.
  • Page 6: Other Precautions

    Futaba is not responsible for damage, etc. caused by the use of parts other than Genuine Futaba The plastic may melt and fail to parts. Use the parts described in the instruction function.
  • Page 7: Before Use

    EFORE Set Contents After opening the carton, first check if the following items are provided. The set contents depend on the type of set. T4YF Transmitter R136F R148DF R127DF Receiver (not for USA) S3003 S3004 S3101 Servo (x3) (x4) (x2) Receiver Battery Nicd Battery...
  • Page 8: Name And Handling Of Each Part

    Name and Handling of Each Part T4YF TRANSMITTER (Front Panel) Trainer Switch Operates the instructor transmitter Antenna when using the trainer function. The student transmitter can be operated only while this switching is being Carrying Bar pressed. Hook Elevator Throttle (Mode 1) (Mode 1) Throttle...
  • Page 9: Rear Panel

    T4YF TRANSMITTER (Rear Panel) Trainer jack Connects the trainer cord when using the trainer function. (The trainer cord is sold separately. ) (See page 15 for the trainer function opera- tion instructions.) Battery cover Use when replacing the battery . Slide the cover downward while pressing the part marked "...
  • Page 10 RECEIVER Output / battery connector R127DF "1": Aileron servo (CH1) Crystal "2": Elevator servo (CH2) "3": Throttle servo (CH3) The crystal is replaced from the side of the "4": Rudder servo (CH4) receiver. "5": (Not used) (CH5) "6": (Not used) (CH6) "7": (Not used) (CH7) FP-R127DF "8": (Not used) (CH8)
  • Page 11: Transmitter Operation And Movement Of Each Servo

    Transmitter Operation and Movement of Each Servo Before making any adjustments, learn the operation of the transmitter and the movement 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 Aileron(ch1) (Viewed from the rear) right, the right aileron is raised and the left...
  • Page 12: Installation And Adjustment

    NSTALLATION AND DJUSTMENT This section describes the installation method and adjustment method after installa- tion when installing the receiver, servos, etc. to the plane. Connections Connection example is shown below. Connection Example Receiver R127DF *The number of servos depends on the set. FP-R127DF Dual Conversion 7CHANNEL...
  • Page 13 WARNING Connector Connection Servo Throw Insert the receiver, servo, and Operate each servo horn over battery connectors fully and its full stroke and adjust so that firmly. the pushrod does not bind or is not too loose. If vibration, etc. causes a connector to work loose during flight, the plane may Unreasonable force applied to the servo crash.
  • Page 14: Adjustments

    Adjustments The operating direction, neutral position, and steering angle of each servo are adjusted. CAUTION The basic linkage and adjustments of the fuselage conform to the fuse- lage 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...
  • Page 15: Using Other Functions

    SING THER UNCTIONS Using the Frequency Board Stick the band number seal to the frequency board. Install the frequency board to the antenna. Pass the frequency board over the small part of the antenna and slide it to the large part. *Use side A or side B, depending on the thickness of the antenna.
  • Page 16: Trainer Function

    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, 6X series, 7U series, 8U series, 9C series, and PCM1024Z series transmitters. Operating Instructions Instructor side: Turn on the power switch and extend the antenna to its full length.
  • Page 17: Charging The Nicd Battery

    Charging The Nicd Battery The transmitter and receiver nicd batteries can be charged simultaneously or inde- pendently. Charging The Nicd Battery Connect the charger transmitter connector to the transmitter charg- ing jack and the charger receiver connector to the receiver servo nicd battery.
  • Page 18: Reference

    EFERENCE Ratings *Specifications and ratings are subject to change without prior notice. TRANSMITTER T4YF RECEIVER R136F (not for USA) (2 sticks, 4 channels, FM transmitter) (6 channels, FM receiver) Transmitting frequency: 29, 35, 36, 40, 41, Receiving frequency: 29, 35, 36, 40, 41, 60, 50, 60, 72, 75 MHz 72 MHz Modulation method: FM (Frequency Modu-...
  • Page 19: Troubleshooting

    If your digital proportional R/C set does not operate, its range is short, it intermit- tently stops operating, or it operates erroneously, take the action shown in the table below. If this does not correct the trouble, please contact a Futaba dealer. Check point...
  • Page 20: Glossary

    Glossary The following defines the symbols and terms used in this instruction manual. Aileron (AIL.) Rudder (RUD.) Control surface at the left and right sides of the Tail control surface that controls the direction of main wing of an aircraft. It usually controls turn- the aircraft.
  • Page 21 FUTABA CORPORATION Makuhari Techno Garden Bldg., B6F 1-3 Nakase, Mihama-ku, Chiba 261-8555, Japan Phone: (043) 296-5119 Facsimile: (043) 296-5124 ©FUTABA CORPORATION 2003, 04...

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