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Futaba 4EXA 4 Channel FM Computer 4 S3004 Servos (1)
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We put the future of R/C in your hands.
The 4EXA is hard to beat for value, but easy to program. You navigate with the ease of Mode and Select keys and lock in digitally accurate settings with the Data Input Lever.
Available with S3004 ball bearing servos, or with S3108M micro servos for park flyer use.
Planning ahead always makes good sense. And thats what makes the 4EXA FM such a sound choice as a first flight system. Its more than a great system for a first model. Four-model memory also makes it great system for a second, third and fourth model, too. Switching from one model to another doesnt
Stock # FUTK40** FUTK41** Tx 4EXA 4EXA Band (MHz) Rx R127DF R124F
require a time-wasting reset just a push-button and a few seconds. The 4EXA not only does the work of four 4-channel systems for a single price: it also delivers digital precision most systems dont offer and a list of enhanced performance features other sport systems cant match.
4-model memory w/model numbering, data copy and reset Digital trims w/automatic trim memory EPA (EndPoint Adjustment) on all channels Servo Reversing on all channels Exponential on ailerons, elevator and rudder Wing mixing for V-tail and elevon 40-segment LCD screen Trainer system Low battery alarm Transmitter NiCd and charger Charge jack
Servos (4) S3004 (3)S3108M
Tx NiCd 600mAh 600mAh
Rx NiCd 600mAh not inc.
Modulation FM FM
For more information on the 4EXA FM or the location of the dealer nearest you, please visit www.futaba-rc.com or call 1-800-682-8948 and mention code number 99L32.
Advanced radio technology for precise, dependable control.
Ultrafly Model ARFs
Theyre designed to perform almost any radical 3D stunt, indoors or out, assemble in just 2-4 hours and offer more ease and value than any other foam aerobat! The bipe wings are printed depron, with lightweight gear and foam wheels for added ease. The EPS foam fuselage already includes bays for the battery, ESC, receiver and aileron servo, but leaves rudder and elevator placement open for customizing CG. All foam parts are protected by the Ultrafly Model No-Worry Parts Guarantee an industry first that replaces any foam part damaged within the first 3 months after purchase!**. And in addition to the guarantee, they also offer two options: a stick mount or firewall mount for outrunner motors, plus a choice of threaded steel pushrods for beginners or ultra-light, rigid carbon fiber pushrods for advanced fliers. Combine the ESC below with any of the battery choices to create a custom power package.
Wingspan (both): 28.3 in (720mm) Weight (both): 10.2 oz (290g) Both require: 4-channel radio* w/3 micro servos, brushless outrunner motor and 8-10A ESC or brushed motor, gearbox and ESC, 2- or 3-cell Li-Po pack and compatible charger * = 4-6 channel radio for Outrage.
Furious ARF (UFLA1100)
Outrage ARF (UFLA1101)
GPMM2070 BL-8 Brushless ESC GPMP0810 Li-Po 720mAh 7.4V 2-Cell Pack ** = see www.ultraflymodel.com for full details.
GPMP0805 Li-Po 640mAh 11.1V 15C 3-Cell Pack GPMP3015 PolyCharge4 Li-Po Pack Charger
Hobbico NexSTAR 46 ARF
The NexSTAR is already what trainers will be in the future: a well-built craft that offers the ease of factory assembly and a collection of innovative features designed for first-timer success. Theres the CenterCore Main Wing Rib, that aligns the wing to perfection and features a built-in aileron servo mount. It includes SpinControl Airfoil Extensions that provide lift even in a stall and keep the pilot in control all the while. SpeedBrakes Training Flaps that hold airspeed down to give new pilots more time to think and react. The NexSTAR offers all three, plus the NexSTAR Precision Airfoil, PivotFlex Wing Mounting, IsoSmooth Engine Mount and more and all boost a new pilots chances for flight success. See www.hobbico.com for details! HCAA2025.
Wingspan: 69 in (1745mm) Wing Area: 722 sq in (46dm2) Weight: 6.9 lb (2.93kg) Wing Loading: 21 oz/sq ft (62g/dm2)
Length: 56 in (1420mm) Requires: 4-channel radio w/4 servos,.46 engine, glow fuel and support equipment
Futaba PAR-2 Pilot Assist Link w/Receiver
Its a boon for beginners: a device that automatically returns a plane to level flight. Sensitivity can be adjusted from the transmitter, and set to as little as 0%, or as much as 100%! Includes a lightsensitive sensor and a 4-channel dual-conversion receiver which can be mounted almost anywhere inside the fuselage. Together, they add only 2.15 oz. (61g) to allup weight and draw only 20mA from a 4-cell Rx battery. 1-year warranty. 72MHz. FUTL0995 PAR-2 PILOT ASST LINK W/RX 72L FUTL0996 PAR-2 PILOT ASST LINK W/RX 72H
Brochure No. FUTZ0262
Futaba Universal Gear Bag
There are bags for radios, chargers, engines, but this is the only bag that can be customized to carry any of them. All five 10 x 12 (250 x 300mm) foam layers are die-cut into 1 squares, making it easy to create custom shapes by removing excess padding. Its tough nylon exterior is reinforced by 1 (25mm) webbing. Other features include a padded bottom and double-zippered lid, hook & loop-sealed pouch for cords and crystals and an adjustable, FUTP1001 removable shoulder strap.
Copyright 2005 3088492/493 Distributed Exclusively Through GREAT PLANES MODEL DISTRIBUTORS COMPANY, P.O. Box 9021, Champaign, IL 61826-9021
INSTRUCTION MANUAL for Futaba 4EX 4-channel, FM radio control system for aircraft
Futaba Corporation Technical updates available at: http://www.futaba-rc.com
Entire Contents Copyright 2005
TABLE OF CONTENTS
Introduction... 2 Service... 2 Contents and specifications.. 3 Glossary... 3 Introduction to the 4EX system.. 4 Transmitter controls and descriptions.. 4 Radio installation.. 5 Receiver and servo connections. 7 Charging the Ni-Cd batteries.. 7 LCD and Programming controls.. 8 Programming the T4EX radio... 9 Model select / Data reset..10 Servo reversing...10 End Point Adjustments...11 Trims..11 Exponentials...11 V-tail mixing..12 Elevon mixing...12 Flow chart...13 Other T4EX functions...14 Trainer switch...14 Adjustable-length control sticks..14 Changing the stick mode..14 Flying safety guidelines..15 Flight preparation...16 Model Data Recording Sheets..17 Futaba Accessories..20
Thank you for purchasing the Futaba 4EX digital proportional R/C aircraft system. If this is your first computer radio, rest assured that it is designed to make initial setup and field-tuning of your airplane easier and more accurate than would be if using a non-computer radio. Although this is a beginner or sport system with the requirements of those flyers in mind, in order to make the best use of your Futaba 4EX and to operate it safely, you must carefully read all of the instructions.
Suggestion: If, while reading the instructions, you are unclear of some of the procedures or functions and become stuck, continue to read on anyway. Often, the function or procedure will be explained again later in a different way providing another perspective from which to understand it. Another suggestion is to connect the battery, switch and servos to the receiver and actually operate the radio on your workbench as you make programming changes. Then, youll be able to see the effects of your programming inputs.
If any difficulties are encountered while setting up or operating your system, please consult the instruction manual first. For further assistance you may also refer to your hobby dealer, or contact the Futaba Service Center at the web site, fax number or telephone number below: www.futaba-rc.com Fax: (217) 398-7721 Telephone (8:00 am to 5:00 pm Central time Monday through Friday): (217) 398-8970, extension 2 If unable to resolve the problem, pack the system in its original container with a note enclosed and a thorough, accurate description of the problem(s). Include the following in your note:
Symptoms. Any unusual mounting conditions. An inventory of items enclosed. The items that require repair. Your name, address, and telephone number. Include the warranty card if warranty service is requested.
Send your system to the authorized Futaba R/C Service Center at the address below: Futaba Service Center 3002 N Apollo Drive Suite 1 Champaign, IL 61822 This product is to be used for sport and recreational flying of radio-control models only. Futaba is not responsible for the results of use of this product by the customer or for any alteration of this product, including modification or incorporation into other devices by third parties. Modification will void any warranty and is done at the owners risk.
Protect the environment by disposing of rechargeable batteries responsibly. Throwing rechargeable batteries into the trash or municipal waste system is illegal in some areas. Call 1-800-8-BATTERY for information about Ni-Cd battery recycling in your area.
CONTENTS AND SPECIFICATIONS Transmitter: T4EX T4EX Transmitter with 4-model memory. Transmitting on 29, 35, 36, 40, 41, or 72 MHz band. Operating system: 2-stick, 4-channel system Modulation: FM(Frequency modulation) Power supply: 9.6V NT8S600B Ni-Cd battery or 12V alkaline battery Current drain: 250mA Receiver: R127DF, R136F, R124F, or R114F R127DF FM Dual conversion 7 channel receiver. R136F FM 6 channel receiver. R124F/R114F FM 4 channel micro receiver. Receiving on 29, 35, 36, 40, 41, or 72 MHz band. Intermediate frequencies: 455kHz (R127DF- 10.7MHz/455kHz) Power requirement: 4.8V or 6V (R124F/R114F- 4.8V) Current drain: 9.5mA @ 4.8V (R124F/R114F- 6mA @ 4.8V) Size: R127DF- 1.39x2.52x0.82" (35.3x64.0x20.8mm)/ R136F- 1.31x1.98x0.71" (33.4x50.3x18.1mm)/ R124F- 1.31x0.64x0.62" (33.2x16.2x15.7mm)/ R136F- 0.86x1.25x0.53" (21.8x31.7x13.5mm)/ Weight: R127DF- 1.5oz (42.5g) / R136F- 0.98oz (27.8g) / R124F- 0.30oz (8.5g) / R114F- 0.38oz (10.9g)
*Specifications and ratings are subject to change without notice
Servos: S3004, S3003, S3109M, or S3108 S3004 ball bearing/S3003 standard servo S3109M/S3108 micro servo With mounting hardware and servo arm assortment. Control system: Pulse width control,1.52ms neutral Power requirement: 4.8 or 6V from receiver (S3109M/S3108- 4.8V) Output torque: S3004/S3003- 44.4oz-in [3.2kg-cm] @4.8V S3109M- 6.25oz-in [0.45kg-cm] @4.8V S3108- 16.7oz-in [1.2kg-cm] @4.8V Operating speed: S3004/S3003- firstname.lastname@example.orgV S3109M- email@example.comV S3108- firstname.lastname@example.orgV Size: S3004/S3003- 1.59x0.78x1.41" [40.4x19.8x36mm] S3109M/S3108- 0.86x0.43x0.78" [21.8x11x19.8mm] Weight: S3004- 1.3oz (37.2g) / S3003- 1.3oz (38.0g) / S3109M- 0.22oz (6.3g) / S3108- 0.27oz (7.6g) Other components: Switch harness 9"[200mm]aileron extension cord (to facilitate quick connecting and disconnecting of aileron servo with removable wing) Instruction manual
It will be helpful to understand the following terms before reading the rest of the manual. The terms are not in alphabetical order, but are in a logical order that prepares the reader for understanding the next term. Reversing (servo reversing) - A function that allows the user to determine the direction of response of each servo. If, after hooking up the servos, a control on the model responds in the wrong direction, the user may change the servo's direction so the control responds correctly. Throw - When speaking of a control surface (such as an elevator or aileron), the throw is the distance the surface moves. Control surface throw is usually measured at the trailing edge of the surface and is expressed in inches or millimeters. The model in the diagram has 1/2" [13mm] of up elevator throw. Throw can also refer to the distance a servo arm (or wheel) travels. End point adjustment (E.P.A.) - Sets the overall, maximum distance the servo rotates in either direction.
Exponential - Normally, servos respond proportionally to control stick input from the transmitter (e.g., if the stick is moved halfway, the servo will move halfway). However, with exponential, the servo can be made to move more or less than initial stick movement (less servo movement is more common). Exponentials are commonly used to soften, or decrease initial servo travel for the ailerons, elevators and rudder. This way, initial control stick inputs from the pilot result in small servo movement for a smoother flying airplane. Mixing - Two (or more) servos can be made to operate together either by mechanically joining the wires (with a Y-connector) or by electronically joining them through programming functions (WING mixing) in the transmitter. When servos are electronically joined via programming, they are said to be mixed. Each servos end points can be independently set.
INTRODUCTION TO THE 4EX SYSTEM
IMPORTANT!: Always turn on the transmitter first, then the receiver. When turning off the system, always turn off the receiver first. The object is never to have the receiver on by itself. Otherwise, the servos or control surfaces could be damaged, or in the case of electric-powered models, the motor may unexpectedly turn on causing severe injury. IMPORTANT!: Never collapse the transmitter antenna by pushing down from the top. If one of the segments becomes momentarily stuck you may damage the antenna. Instead, collapse the antenna from the bottom, drawing in one segment at a time. Transmitter The liquid-crystal display (LCD) on the face of the compact, ergonomically-designed case is easy to read and allows rapid data input. The system also holds independent memories for four different models. The new, adjustable-length control sticks provide an improved feel. External switches operate trainer cord or buddy-box capabilities. Programming features include servo reversing and E.P.A on all channels, exponentials. Additionally, any one of three, factory-set, preprogrammed wing-type mixers including V-tail, elevon mixing may be selected. Transmitter controls The diagram and explanations briefly describe the functions of the Futaba T4EX transmitter. Full instructions on how to operate the controls are provided beginning on page 9. NOTE: The diagram shows a Mode 2 system as supplied. (More on flight modes on page 14).
Neck strap hook
Throttle/rudder control stick Throttle trim lever Rudder trim lever
Aileron/elevator control stick Elevator trim lever Aileron trim lever Charging jack On-off switch
DESCRIPTIONS: Neck strap hook - Mounting point for optional neck strap. Aileron/elevator control stick - Operates the servos connected to channel 1 (aileron) and channel 2 (elevator) in the receiver. Trim levers (all) - Used to shift the neutral or center position of each servo as labeled in the diagram.
Liquid-crystal display screen (LCD)
DATA INPUT lever
NOTE: Changing the trims affect the overall settings. When trim usage is extreme, recheck your installation for maximum travel. 4
Charging jack - Port for charging the transmitter batteries with the included battery charger. On-off switch DATA INPUT lever - Used to change the values of the various functions displayed on the LCD screen. Liquid-crystal display screen (LCD) - Displays programming modes and values entered. MODE key - Used to scroll through and display the seven different functions. SELECT key - Used to display the values for the current function. Throttle/rudder control stick - Operates the servos connected to channel 3 (throttle) and channel 4 (rudder) in the receiver. Trainer switch - Operates the trainer functions. To operate as a trainer switch the transmitter must be connected to another transmitter via. a trainer cord (available separately). Antenna - Radiates signals to the receiver. Never fly a model without fully extending the antenna or you may create interference to other modelers and decrease operational signal range of the transmitter. The antenna may be removed and replaced with another in case it is inadvertently broken.
Follow these guidelines to properly mount the servos, receiver and battery. Make certain the alignment tab on the battery, switch and servo connectors is oriented correctly and keys into the corresponding notch in the receiver or connectors before plugging them in. When unplugging connectors, never pull on the wires. Always pull on the plastic connector instead. If any servo wires are not long enough to reach the receiver, servo extension wires (available separately) may be used.
Always mount the servos with the supplied rubber grommets. Do not over tighten the grommets screws. No part of the servo casing should contact the mounting rails, servo tray or any other part of the airplane structure. Otherwise, vibration will be transmitted to the servo causing premature wear and/or servo failure.
The receiver contains precision electronic parts. It is the most delicate (and expensive) radio component on-board the model and should be protected from vibration, shock and temperature extremes. To protect the receiver, wrap it in R/C foam rubber or other vibration-absorbing material. If appropriate, waterproof the receiver by placing it in a plastic bag and closing the open end with a rubber band before wrapping it in foam. If moisture enters the receiver, intermittent operation or a failure may result. Wrapping the receiver in a plastic bag also protects it from fuel and exhaust residue which, in some models, can work its way into the fuselage.
Mounting the frequency clip: (for USA) To announce your frequency and avoid potential interference problems, the frequency number should always be displayed on the transmitter antenna while flying. Peel the backing from the numbers and apply them to both sides of the clip. Snap the end of the clip that fits best to the base of the antenna as shown. You may cut off the other end of the clip.
RECEIVER AND SERVO CONNECTIONS
Connect the servos to the receiver to perform the functions indicated: Receiver output channel 7 B
Aileron -or or-left elevon (for tailless models) Elevator -or or-left ruddervator (for V-tail models) -or or-right elevon (for tailless models) Throttle Rudder -or-right ruddervator (for V-tail models) (Not used) (Not used) (Not used) Receiver on/off switch (the plug colored red goes into the receiver)
The diagram shown is for aircraft models only. Additional servos may have to be purchased separately.
Rudder Servo (CH4) Throttle Servo (CH3)
(Red) Charging Jack (Black) Switch Harness
Elevator Servo (CH2) Aileron Servo (CH1)
CHARGING THE Ni-Cd BATTERIES
The transmitter and receiver batteries included with your 4EX system are rechargeable, Ni-Cd (nickel-cadmium, pronounced ni-kad) batteries. Ni-Cd batteries require special care and charging. Read the charging instructions carefully. NOTE: The batteries are partially charged, but will require a full, overnight charge before the model may be flown. 1. Connect the transmitter charging cord coming from the A/C wall charger to the charge jack in the right side of the transmitter case. The receiver charging cord may be connected to the batteries two different ways: The charge cord may be connected directly to the battery pack, or to the vacant charge connector (black) coming from the on/off switch in the model. Charging through the switch is preferred as there will be no need to disconnect the battery. 2. Plug the A/C wall charger into a wall outlet. Note: If the wall outlet can be turned off by a switch in the room, be certain the switch remains on after leaving the room. Otherwise, the batteries will not be charged! 3. The LEDs (light-emitting diodes) should light red, indicating that current is flowing and the batteries are being charged. Discharged batteries will take about 15 hours to fully charge. If using an aftermarket fast charger, be certain to follow the manufacturer s instructions provided with the charger so you do not overcharge the batteries. NEVER charge manufacturer the batteries at a rate higher than 1,000mA. The batteries should also be discharged periodically to prevent a condition
called memory. If, for example, only two flights are made each time you go flying, the batteries will not have reached very far down into their full capacity. After doing this several times the batteries will remember and eventually think they can supply only enough power for two flights. After two flights the batteries may not provide enough power to operate the system, thus causing a crash. To erase any potential memory, cycle the batteries by discharging, then charging them with a commercial battery cycler, or leave the system on and exercise the servos by moving the transmitter sticks until the servos are moving very slowly, indicating that the battery is discharged. Cycling should be done every one to two months, even during the winter or periods of long storage. If using a cycler with a readout, note the capacity after the batteries have been cycled. If there is a noticeable drop in capacity the batteries should be replaced.
Note: Charging your batteries with the included Futaba A/C battery charger is always safe. However, fast-charging with an aftermarket charger is acceptable as long as you know how to properly operate the charger. NEVER charge at a rate higher than 1,000 mA (1 Amp). If not done correctly, fast-charging can damage the batteries.
LIQUID CHIP DISPLAY (LCD) & PROGRAMMING CONTROLS
MODE key - use to select desired function while programming
To open programming menu; Press both keys simultaneously and hold for one second
DATA INPUT lever - use this lever to input numbers or settings SELECT key - use to select items within function to be set or changed in the screen LCD display screen
When the transmitter is initially turned on, the model memory number and transmitter battery voltage are displayed on the LCD screen. When prompted by the user, the functions and settings stored in the memory can also be read on the screen. The user accesses the different functions using the MODE and SELECT keys and changes the values and settings using the DATA INPUT lever. (This is called programming!)
Current model memory number
Transmitter battery voltage
Note: Feel free to explore by scrolling through the programs and viewing the displays using the MODE and SELECT keys. The MODE and SELECT keys only determine what will be displayed on the screen and will not change any of the settings. Only when using the DATA INPUT lever will you be able to change any of the settings.
Model memory number The Futaba T4EX stores model memories for four models. This means all the data (control throws, end points, etc.) for up to four different models can be stored in the transmitter and activated at any time (depending upon which model you choose to fly that day). This eliminates the requirement for reconfiguring the transmitter each time you decide to fly a different model with it! When the transmitter is turned on the model number and the transmitter voltage will be indicated on the LCD screen. Before every flight BE CERTAIN that the correct model number for the model you intend to fly appears on the screen. If the transmitter is not operating the correct model, some (or all) of the controls could be reversed and the travels will be wrong.
Flying a model with the wrong program will result in a crash, so always be certain the model number in the transmitter is correct. One way to ensure this is to write the corresponding model number directly on the airplane, or attach a list to the bottom or back of the transmitter.
Transmitter battery voltage In addition to the model number, the LCD screen also displays the transmitter battery voltage voltage. When the voltage goes below approximately 8.5 Volts the battery icon will flash and the low-battery alarm will continuously beep until the transmitter is turned off. When the low-battery alarm sounds you will have approximately four minutes (or less) to land your model before losing control. You should never allow the transmitter voltage to become this low while flying, but if it does, land immediately immediately.
Battery icon Battery
Note: When the transmitter voltage reads 8.9 Volts you will still have approximately ten minutes (or less) before losing operational range, so this is the recommended absolute minimum voltage. If the transmitter ever reaches 8.9 Volts, land as soon as safely possible. A more reasonable margin of safety would be to quit flying for the day (or recharge the batteries) when the transmitter battery. is at 9.4 Volts.
SUGGESTED GUIDELINES 9.4 Volts - No more flying until recharge. 8.9 Volts - Land as soon as safely possible. 8.5 Volts - Emergency- Land immediately!
PROGRAMMING THE 4EX RADIO
Anytime you wish to view or change any of the current settings in the transmitter, the programming mode must first be entered by, of course, turning on the power, then by pressing the MODE and SELECT keys simultaneously and holding them down MODE SELECT for one second. Once in the program the MODE key will be used to scroll through each of the seven functions (model number/ data reset, reversing, exponentials, end point adjustments, trim memory, v-tail mixing, and elevon mixing) and the SELECT key will be used to view the settings within the function. When a data change is actually required the DATA INPUT lever will INPUT be used to increase or decrease the value of the item displayed, thus making the change. You can return to the home screen (where the model number and battery voltage is displayed) by pressing the MODE and SELECT keys simultaneously and holding them down for one second.
Note: The functions are listed and described in the order that they appear in the transmitter. Read all the way through the programming instructions before setting up your model (if you wont be using any of the mixing functions for a while you can read those instructions when ready). Refer to the FLOW CHART on page 13 as well.
Model Select/Data Reset MODEL Model select function To select model memory: 1. Access the Model Select function in the programming mode (by pressing the MODE and SELECT keys simultaneously and holding them down for one second). The number for the current, active model will be blinking. 2. To activate a different model memory press the DATA INPUT lever for a half second until the desired model number appears. 3. Now the model has been selected. All programming inputs from this point forward will affect only the model number on the screen (until another model number is selected). CL Data reset function All the data for any model memory can be reset to the original factory defaults. Often this function is done to get a fresh start and clear the memory before inputting new model settings. To reset data: 1. Access the Model Select function in the programming mode (by pressing the MODE and SELECT keys simultaneously and holding them down for one second). Use the DATA INPUT lever to select the model memory you wish to reset.
Trim Settings/Trim Memory Function There are four trim levers (trims) on the front of the transmitter. The intended use of the trims is to make small servo adjustments, in flight, to get the model properly trimmed (so it will fly straight-and-level). Center the servos: 1. Turn on the transmitter and receiver. Operate the controls to make sure the servos respond in the correct direction. Use the reversing function to reverse any servos necessary. 2. Center the throttle control stick. 3. Place the servo arms on the servos so they are perpendicular to the pushrods (see page 5). It is okay to cut off any unused servo arms. 4. Connect the pushrods to the control surfaces. Adjust the length of the pushrods until the control surfaces are centered when the servos are centered. To adjust the trim settings: Once the servos and control surfaces have been connected and the control throws have been set using the end points, get the model airborne. Adjust the trims as necessary to get the model to fly straight-and-level. If much trim is required on any one control it is a good idea to readjust the pushrods so the trims can be returned to neutral (zero). TRIM.M - Trim memory function Since the trims on the 4EX are mechanical trim, before changing the model number or turning off the transmitter, perform trim memory operation to save the trim position. The trim positions at the last operation are recalled by opereting the trim lever to center. To save all trim positions: 1. Enter the programming mode and use the MODE key to activate the TRIM.M menu. 2. Push the DATA INPUT lever upward or downward for about one second to save all trim positions. EXP Exponential Settings Negative exponential (-) decreases initial servo movement. Positive exponential (+) increases initial servo movement. The exponential curve may be set anywhere between -100% and +100%. To set the exponentials: 1. Enter the programming mode. Access the EXP screen with the MODE key. EXP 2. Select the channel (1-aileron, 2-elevator, 4-rudder) you wish to set by pressing the SELECT key. The active channel number will be displayed on the screen. 3. Enter the amount of exponential with the DATA INPUT lever. 4. Repeat for the settings on the other channel. Note: Before programming the exponentials, perform trim memory operation and then set the corresponding trims to center. 11
Wing Mixing Type Selection There are two different wing mixing functions to select from: V-tail mixing Intended for V-tail aircraft (such as a Beechcraft Bonanza), V -tail mixing allows the ruddervators to operate both as rudders and elevators. V -tail mixing requires that each ruddervator be operated by a separate servo.
CH2 CH2 CH4 CH4 Left Rudder (view from rear)
To activate V-tail mixing: *If necessary, use the Servo Reversing 1. Connect the left ruddervator servo to channel 2 (elevator) in the receiver and function to achieve the correct direction of connect the right ruddervator servo to channel 4 (rudder) in the receiver. servo throws.
WING 2. Enter the programming mode. Access the WING screen with the MODE key.
3. Push the DATA INPUT lever upward or downward for about a half second to select the V-tail mixing. You cannot set V-tail mixing when Elevon mixing has already been set. V-tail Elevon
4. Once this mix has been activated, move the servos to their full extremes to make certain they are not overdriving the controls. If necessary, adjust the linkages to achieve the correct control throws.
*If necessary, use the Servo Reversing function to achieve the correct direction of servo throws.
Elevon mixing Intended for tailless, flying wing models such as delta wings and flying wings, elevon mixing mixes channel 1 (aileron) to channel 2 (elevator) allowing the elevons to operate in unison (as elevators) or in opposition (as ailerons). This function requires that each elevon be operated by a separate servo.
To activate elevon mixing: 1. Connect the servo in the right wing to channel 2 (elevator) in the receiver and connect the servo in the left wing to channel 1 (aileron) in the receiver.
Aileron operation Elevator operation
2. Enter the programming mode. Access the WING screen with the MODE key. WING
3. Push the DATA INPUT lever upward or downward for about a half second to select the Elevon mixing. You cannot set Elevon mixing when V-TL mixing has already been set. Elevon V-TL
FLOW CHART 4EX FUNCTIONS Stick Mode
(Screen at Startup)
To enter or leave Programming Mode, press MODE and SELECT keys simultaneously for one second. (Programming Mode)
Use the DATA INPUT lever to display the desired stick mode.
To change the Stick Mode, turn on the transmitter holding MODE and SELECT keys down simultaneously.
(for a half second)
[CH 2-3] MODE key
SELECT key DATA INPUT lever
Simultaneously Press the MODE and SELECT keys and hold them down for one second to enter the programming MODE SELECT mode. Press the keys again (or turn off the transmitter) to exit the programming mode.
OTHER 4EX FUNCTIONS
Trainer switch To utilize the trainer function, the appropriate trainer cord (available separately) and a second Futaba transmitter (usually provided by your flight instructor or R/C club) will be required. When two radios are connected with the trainer cord, they are both capable of operating the model, but it's usually best for the instructor to hold the radio that has been setup for the plane to be flown (as it is already programmed to fly the model). When the instructor holds the trainer switch on his radio, the student will have control. When the instructor wishes to regain control he simply releases the switch. Then he will have immediate, full control. If connecting the 4EX to another 4EX with the small, square micro trainer jack, use the Micro to Micro (MM-TC) trainer cord (FUTM4415). If connecting the 4EX to Futaba radios with the larger, round, DIN connector, use Micro to DIN (MD-TC) trainer cord (FUTM4420). The T4EX transmitter may be connected to another T4EX, or any 4VF, 6VA Skysport, T6EXA, FF6 9, 9Z, or 14MZ series transmitter. To use the trainer cord: 1. It is best for the instructor to use the transmitter that is already set up for the model to be flown. 2. If the student's radio has PCM/PPM capability, set it to PPM. 3. If the student's radio has a plug-in RF module, remove the module. 4. Collapse the student's antenna and fully extend the instructor's antenna. 5. With the transmitters off, connect the trainer cord to both radios. (On the 4EX the trainer jack is in the center of the rear of the case.) Do not force the plug into the transmitter and note that the plug is keyed so it can go in only one way. 6. Turn on the instructor's transmitter. DO NOT turn on the students transmitter it will automatically power up, but will not transmit a signal. Set the servo reversing and trims of the student's radio to match that of the instructor's. 7. Turn on the receiver switch in the model. Depress the trainer switch on the instructor's radio. Use the students radio to operate the controls (ailerons, elevator, rudder, etc.) and observe how they respond. Make any adjustments necessary to the student's transmitter to get the controls to respond correctly. 8. Check to see that the trims are in sync by toggling the trainer switch back and forth a few times. The controls on the model should remain stationary. If the controls do not remain stationary, this indicates that the trim settings on the student's radio do not match those on the instructor's radio. Adjust the student's trims as necessary. Adjustable-length control sticks The control stick length is adjustable to make the transmitter more comfortable to hold and operate. To adjust the length, hold the locking piece (B) and turn the stick tip (A) counterclockwise. Turn the locking piece B up or down to lengthen or shorten the stick. When the length is suitable, lock the stick in position by turning locking piece B counterclockwise. Changing the 4EX stick mode The transmitter may be operated in four different stick modes (1, 2, 3 & 4). The modes determine the functions that will be operated by control sticks. Currently, the transmitter is in mode 2 and should be left in mode 2 unless you are an experienced flyer and have learned to fly in a different mode. In mode 2, the right control stick operates the aileron and elevator and the left stick operates the rudder and throttle. This is how 99% of Americans fly their models. To change the mode, simultaneously depress the MODE and SELECT keys, then turn on the power. The current mode will appear on the LCD screen. Push the DATA INPUT lever up or down to change the mode. If a mode is selected that moves the throttle control to the right stick, the throttle detent mechanism will have to be moved as well. This can be done by the Futaba Service Center. (See page 2)
Flight preparation is to be done at the flying field. IMPORTANT: Your radio control system transmits a signal on a certain frequency. Be certain you know what the frequency is. This is expressed as a two-digit number (42, 56, etc.), and can be found on the container the transmitter came in and is also located on the transmitter and receiver. There are several different frequencies, but there is still a chance that someone else at the flying field may be on the same frequency as you. Two models can never be operated at the same time on the same frequency-no matter what the modulation (AM, FM, PCM). If you turn on your transmitter while another person is flying on the same frequency, a crash will result. NEVER turn on your transmitter until you have permission from your instructor, and until you have possession of the frequency clip used for frequency control at the flying site. If you are an inexperienced pilot, be certain your flight instructor performs these following checks with you. Check the controls 1. Get the frequency clip from the frequency control board at your flying site. 2. Mount the wing to the fuselage. Turn on the transmitter, then the receiver (remember to do this in reverse order when turning off the system). Be certain the correct model memory matching the model you will be flying is the one on the LCD screen. 3. Operate and observe the controls. Look for inadvertent movement and listen for abnormal servo sounds. If problems are noted, correct them before flying. Look for binding pushrods or servo arms or pushrods that interfere with each other. 4. One at a time, operate each control on the airplane using the sticks on the transmitter to make certain each control is responding correctly. This must be done before every flight. (There are several types of malfunctions that can be discovered by performing this elementary task, thus saving your model!) Range check the radio A range check must be performed before the first flight of a new model. It is not necessary to do a range check before every flight (but is not a bad idea to perform a range check before the first flight of each day). A range check is the final opportunity to reveal any radio malfunctions, and to be certain the system has adequate operational range. 1.Turn on the transmitter, then the receiver. Leave the transmitter antenna all the way down. Walk away from the model while simultaneously operating the controls. Have an assistant stand by the model and signal what the controls are doing to confirm that they operate correctly. You should be able to walk approximately 20 - 30 paces from the model without losing control or seeing jitter in the servos. 2.If everything operates correctly, return to the model. Set the transmitter in a safe, yet accessible location so it will be within reach after starting the engine. Be certain the throttle stick is all the way down, then start the engine. Perform another range check with your assistant holding the plane and the engine running at various speeds. If the servos jitter or move inadvertently, there may be a problem. Do not fly the plane! Look for loose servo connections or binding pushrods. Also be certain you are the only one on your frequency, and that the battery has been fully charged. 3.When ready to fly, remember to fully extend the transmitter antenna. Avoid pointing the antenna directly at the model as the signal is weakest in that direction. Do not fly in the rain! Moisture may enter the transmitter through the antenna or stick openings and cause erratic operation or loss of control. If you must fly in wet weather during a contest, be sure to cover the transmitter with a plastic bag or other waterproof cover. MODEL DATA RECORDING SHEET After finalizing the programming for each model, fill out the values and settings in the Model Data Recording Sheets in the back of the manual. The data sheets will serve as a backup in case a program is ever lost or inadvertently reset, or in case you have to intentionally reset a program to make room for another model. Make additional copies before filling out the sheets. 16
MODEL DATA RECORDING SHEET
(Make copies before using)
Model name: Model No. 1234 Wing Mixing Inh EL v CH 1 N R
MENU FUNCTION REVERSE Servo Reverse
CH 2 N R
CH 3 N R
CH 4 N R
E. P. A
End Point Adjust
FUTABA ACCESSORIES AND REPLACEMENT PARTS (for USA)
REPLACEMENT PARTS ANT-5 Transmitter antenna. FUTM5040 NR-4J 4.8 Volt, 600 mAh receiver battery. FUTM1280 NT-8F 600B 9.6 Volt, 600 mAh Transmitter battery.. FUTM1440 SWH-13 Switch Harness w/charge plug. FSH-6X Servo arm.. FSH-6S Servo arm.. FSH-32 Servo mounting screws (10). FUTM4370 FUTM2030 FUTM2010 FUTM2250
ACCESSORIES FTA-8 Neck strap.. FUTM5692 NR-4K 4.8 Volt, 250 mAh receiver battery. FUTM1210 NR-4B 4.8 Volt, 1,000 mAh receiver battery.. FUTM1380 NR-4F 4.8 Volt, 1,500 mAh receiver battery. FUTM1285 AEC-3 8" [200mm] Servo Extension.. FUTM3910 AEC-14 8" [200mm] Heavy Duty Servo Extension (for digital servos)... FUTM4140 AEC-11 16" [400mm] Servo Extension. FUTM3955 AEC-15 16" [400mm] H.D. Servo Extension (for digital servos.. FUTM4145 AEC-16 Dual H.D. Servo Extension (Y-connector, for digital servos).. AEC-13 Dual Servo Extension (Y-connector). SR-10 Dual Servo Reverser.. Trainer Box transmitter.. FUTM4135 FUTM4130 FUTM4150 FUTM4375
(if using with 4EX transmitter use the MD-TC trainer cord)
MD-TC trainer cord.. FUTM4420 MM-TC trainer cord.. FUTM4415
Flight packs since your Futaba 4EX transmitter holds memories for up to four models, there is no need to purchase a complete radio system (including the transmitter) for every model you fly. Available separately, Futaba Flight Packs contain a receiver, servos, switch, battery and all servo mounting hardware. Consult your dealer or the Futaba Service Center for specific contents and order numbers. Receiver crystals: The receiver frequency may be changed as long as it remains within the low and high band frequency range. If your receiver is on any channel from 11 through 35, it is a low band receiver and the frequency may be changed to any other channel from 11 through 35 without having to perform any other service. Simply purchase a crystal on the desired channel, then replace the existing crystal in your receiver with the new one. If your receiver is on any channel from 36 through 60, it is a high band receiver and the frequency may be changed to any other channel from 36 through 60. To order a receiver crystal, replace the ** in the order numbers below with the required channel number. (To order a receiver crystal on channel 30, order FUTL5730.) FM Dual Conversion 72 MHz low band (channels 11 - 35) receiver crystal. FUTL57** FM Dual Conversion 72 MHz high band (channels 36 - 60) receiver crystal. FUTL58**
Note: Should you ever wish to change the transmitter frequency, the transmitter must be sent to the Futaba Service Center for retuning.
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