OUTPUT 4CHANNEL RADIO CONTROL SYSTEM 4VF-FM FM 4 CHANNELS FOR AIRCRAFT AND SURFACE INSTRUCTION MANUAL 1M23N01708 4VF(V2) R Digital Proportional R/C System
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. See the glossary page 20 for a definition of the special terms used in this manual. APPLICATION, EXPORT, AND RECONSTRUCTION 1. This product may be used for model airplane or surface use if on the correct frequency.
TABLE OF CONTENTS FOR SAFETY .............................................................................2 MEANING OF SPECIAL MARKINGS ................................................................................. 2 PRECAUTIONS DURING FLIGHT ...................................................................................... 3 NICD BATTERY CHARGING PRECAUTIONS .................................................................. 4 OTHER PRECAUTIONS ........................................................
FOR SAFETY To ensure safe use, observe the following precautions. MEANING OF SPECIAL MARKINGS FOR SAFETY Pay special attention to the safety at the parts of this manual that are indicated by the following marks. Mark DANGER WARNING Procedures which may lead to a dangerous condition 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.
PRECAUTIONS DURING FLIGHT WARNING PROHIBITED ITEMS Interference may cause a crash. Simultaneous flight on the same frequency prohibited *Use of the same frequency will cause interference even if the modulation method (AM, FM, PCM) is different. 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.
CAUTION PROHIBITED ITEMS FOR SAFETY When placing the transmitter on the ground during flight preparations, be sure that the wind cannot knock it over. Do not touch the engine, motor, and FET amp during and immediately after use. If it is knocked over, the throttle stick may be pushed to full high and the engine will race and create a dangerous situation. They are hot and will cause a burn.
CAUTION PROHIBITED ITEMS During quick charging, the battery holder contacts may overheat and damage the equipment, or prevent charging. Penlight nicd battery Use prohibited Do not drop or apply strong shock to nicd battery. The battery may be shorted and cause overheating or breakage and electrolyte leakage and result in burns or damage by chemical mater. Do not short the nicd battery connector terminals.
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 FOR SAFETY 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.
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.
NAME AND HANDLING OF EACH PART TRANSMITTER T4VF (FRONT PANEL) Level meter Trainer switch Displays the transmitter battery voltage. When the needle deflects to the boundary between the silver and red zones, recharge or replace the battery. Operates the instructor transmitter when using the trainer function. The student transmitter can be operated only while this switching is being pressed.
TRANSMITTER T4VF (REAR PANEL) Trainer jack Battery cover PUSH Use when replacing the battery . Slide the cover downward while pressing the part marked "PUSH". BEFORE USE Connects the trainer cord when using the trainer function. (The trainer cord is sold separately. ) (See page 16 for a the trainer function operation instructions.) TRANSMITTER T4VF (SIDE PANEL) Charging jack Charging jack when the transmitter was converted to nicd battery system. (See page 17 for a description of the charging method.
Output / battery connector RECEIVER "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 R127DF Crystal The crystal is replaced from the side of the receiver.
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.) 1.Aileron (Viewed from the rear) Left Right Left When the aileron stick is moved to the right, the right aileron is raised and the left aileron is lowered, relative to the direction of flight, and the plane turns to the right.
INSTALLATION AND ADJUSTMENT This section describes the installation method and adjustment method after installation when installing the receiver, servos, etc. to the plane. CONNECTIONS Connection examples are shown below. Make the connections matched to the type of set. CONNECTION EXAMPLE Receiver R127DF FP-R127DF Dual Conversion FM 7CHANNEL RECIVER 7 6 5 4 3 2 1 B *The number of servos depends on the set.
WARNING CONNECTOR CONNECTION SERVO THROW Insert the receiver, servo, and battery connectors fully and firmly. Operate each servo horn over its full stroke and adjust so that the pushrod does not bind or is not too loose. 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 placing it in a plastic bag.
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 fuselage design drawings and kit instruction manual. Be sure that the center of gravity is at the prescribed position. ADJUSTMENT PROCEDURE INSTALLATION AND ADJUSTMENT Before making any adjustments, set all the SERVO REVERSER switches on the front of the transmitter to the lower (NOR) position.
USING OTHER FUNCTIONS USING THE FREQUENCY BOARD 1 Stick the band number seal to the frequency board. Side A Frequency board Band number seal (after sticking) Side B 2 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. 17 72.130 *Use side A or side B, depending on the thickness of the antenna. Cut off the unused side along the slot with cutters, etc.
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. 1 Remove the four transmitter rear case screws and remove the rear case. Elevator (Mode 1) Elevator (Mode 2) Rudder Aileron 2 Adjust the spring strength by turning the screw of the channel you want to adjust. 3 Close the rear case and tighten (PC board) the four screws.
CHARGING THE NICD BATTERY WARNING Never plug the special charger into an AC outlet other than specified. If the charger is plugged into an AC outlet other than specified, overheating, sparking, etc, may cause burns, fire, etc. Use the special charger, or digital proportional R/C quick charger, sold separately to charge the digital proportional R/C nicd battery. Overcharging will cause burns, fire, injury, or blindness due to overheating, breakage, electrolyte leakage, etc.
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 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.
Frequencies MHz Band: (car/boat only) The following frequencies and channel numbers may 75 75.410 61 75.610 71 75.810 be used for aircraft and surface in the United States: 75.430 62 75.630 72 75.830 72 MHz Band: (Aircraft only) 72.010 72.030 72.050 72.070 72.090 72.110 72.130 72.150 72.170 72.190 11 12 13 14 15 16 17 18 19 20 72.210 72.230 72.250 72.270 72.290 72.310 72.330 72.350 72.370 72.390 21 22 23 24 25 26 27 28 29 30 72.410 72.430 72.450 72.470 72.490 72.510 72.530 72.550 72.570 72.
GLOSSARY The following defines the symbols and terms used in this instruction manual. Aileron (AIL.) Control surface at the left and right sides of the main wing of an aircraft. It usually controls turning of the aircraft. Rudder (RUD.) Tail control surface that controls the direction of the aircraft. Reverse (REV.) Channel Represents the number of control systems. It can also represent the number of servos that are operated. With the servo reversing function, this is used to mean the reverse side.
REFERENCE Makuhari Techno Garden Bldg.
