background image

GLOSSARY

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.

Dual rate (D/R)

On the 6EXA the dual rate switch allows you to instantly switch, in flight,

between two different control throws for the aileron and elevator. Often, different control
throws are required for different types of flying. (

Low

throws may be required for flying at

high speeds where the model

s response becomes more sensitive, and 

high

throws may be required for aggressive aerobatic

maneuvers or landing or flying at lower speeds where the model s response becomes less sensitive.)

End point adjustment (E.P.A.)

Sets the overall, maximum distance the servo rotates in either direction. (No matter where

the dual rates are set, the servo will never travel beyond the limit set by the end point adjustment.)

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

and elevators. This way, initial control stick inputs from the pilot result in small servo movement for a smoother flying airplane. (Dual
rates adjust the 

amount

of servo travel. Exponentials determine 

where

most of the travel will occur.)

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 in the transmitter. When servos are electronically joined

via programming, they are said to be 

mixed.

Unlike joining servos with a Y-connector, when servos are mixed electronically

they can be made to move in opposition. Additionally, each servo

s end points can be independently set.

3

Transmitter:

T6EXA Transmitter

with programmable mixing and 6-model

memory. 
Transmitting on 72 MHz band.
Operating system: 2-stick, 6-channel system
Modulation: FM
Power supply: NT8S600B 9.6V, 600 mAh Ni-Cd battery 
Current drain: 250mA

Receiver:

R127DF narrow band, FM seven-channel receiver

Receiving on 72 MHz band.
Type: FM, Dual conversion
Intermediate frequencies: 455kHz, 10.7MHz
Power requirement: 4.8V or 6V Ni-Cd battery
Current drain: 14mA @ 4.8V
Size: 1.39x2.52x0.82

"

(35.3x64.0x20.8mm)

Weight: 1.5oz (42.5g)

Receiver Battery:

NR-4J 4-cell

(4.8 Volt) 

Capacity: 600mAh
Weight: 3.4oz/95g

Servos:

Four S3004 ball bearing servos

with mounting 

hardware and servo arm assortment 
Control system: Pulse width control, 1.52ms neutral
Power requirement: 4.8V (from receiver)
Output torque: 44.4oz-in [3.2kg-cm]
Operating speed: 0.23sec/60

°

Size: 1.59x0.78x1.41

"

[40.4x19.8x36mm]

Weight: 1.3oz [37.2g]
*Specifications and ratings are subject to change without notice.

Other components:

SWH-13 switch harness with charging jack

9

"

[150mm] aileron extension cord (to facilitate quick

connecting and disconnecting of aileron servo with
removable wing)

Flap control lever

AC overnight battery charger

Frequency clip 

Neck strap

Servo mounting tray

Instruction manual

CONTENTS AND SPECIFICATIONS

Summary of Contents for 6EXA

Page 1: ... MANUAL for Futaba 6EXA 6 channel FM radio control system for aircraft Futaba Corporation Technical updates available at http www futaba rc com FUTZ9032 for FUTK55 V1 1 Entire Contents Copyright 2003 6 6E EX XA A ...

Page 2: ...stable length control sticks 18 Changing the stick mode 18 Flying safety guidelines 18 Flight preparation 19 Frequency Chart 20 Futaba Accessories 20 Model Data Recording Sheets 21 TABLE OF CONTENTS 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 ...

Page 3: ...is more common Exponentials are commonly used to soften or decrease initial servo travel for the ailerons and elevators This way initial control stick inputs from the pilot result in small servo movement for a smoother flying airplane Dual rates adjust the amount of servo travel Exponentials determine where most of the travel will occur Mixing Two or more servos can be made to operate together eit...

Page 4: ...tions 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 18 DESCRIPTIONS Aileron and Elevator dual rate switch Use this switch to flip between two aileron and elevator control throw settings The throws can be set up however you prefer but generally when the switch is up the throws are greater high rate and...

Page 5: ... 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 RADIO INSTALLATION 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 corre...

Page 6: ... flying see page 19 External antenna mounting A Use a cut off servo arm as a stop or strain relief inside the fuselage to keep tension off the solder joint holding the antenna to the receiver Guide the antenna through a hole in the fuselage If possible insulate the hole with a rubber grommet or a small piece of rubber tubing B Make a hook from another cut off servo arm Insert the end of the antenn...

Page 7: ...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 manufa...

Page 8: ...ially 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 Note Feel free to explore by...

Page 9: ...for one second Once in the program the MODE key will be used to scroll through each of the seven functions model number reversing dual rates exponentials end point adjustments trim programmable mix and the pre programmed wing 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 be used to increase or decre...

Page 10: ... the power on so you can actually see the effects of your programming inputs and measure the control throws REVERSE Servo Reversing The servo reversing function is used to change the direction that a servo responds to a control input from the transmitter stick dial or switch After using the reversing function check all the controls on the model to be certain they are operating in the correct direc...

Page 11: ... stated above an exponential value with a in front of it makes the initial servo movement less or softer 4 Flip the switch to the other position to enter the exponential value for that switch position 5 Repeat for the settings on the other channel E P A End Point Adjustment The E P A function is designed to fine tune the servo throws in cases where changing the pushrod hookup will not achieve the ...

Page 12: ...rborne 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 Adjusting the trims with the trim levers changes the servo s position in increments of 5 If finer adjustments are required land the model then enter the program as described below to adjus...

Page 13: ...ixed are predetermined There are four different wing mixing functions to select from Elevon mixing EL 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 a...

Page 14: ...rows V tail mixing v Intended for V tail aircraft such as a Beechcraft Bonanza V tail mixing allows the ruddervators to operate both as rudders and elevators The same as the other mixes V tail mixing requires that each ruddervator be operated by a separate servo To activate V tail mixing 1 Connect the left ruddervator servo to channel 2 elevator in the receiver and connect the right ruddervator se...

Page 15: ...ft wing to channel 6 flaps in the receiver 3 Enter the programming mode and access the W MIX menu using the MODE key 4 Push the DATA INPUT lever until FPv is displayed on the screen Check all the control throws to make certain there is no binding at the extremes and that the throws are as desired Adjust any linkages necessary to set the correct throws Note Reversing either of the servos involved w...

Page 16: ...ng mode 16 Stick Mode Screen at Startup To enter or leave Programming Mode press MODE and SELECT keys simultaneously for one second To change the Stick Mode turn on the transmitter holding MODE and SELECT keys down simultaneously Use the DATA INPUT lever to display the desired stick mode press MODE and SELECT keys for one second MODE key MODE key SELECT key DATA INPUT lever CH 2 5 CH 2 5 CH 2 3 Mo...

Page 17: ...or 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 ...

Page 18: ...AMA at the address or toll free phone number below Academy of Model Aeronautics 5151 East Memorial Drive Muncie IN 47302 9252 Tele 800 435 9262 Fax 765 741 0057 Or via the Internet at http www modelaircraft org IMPORTANT If you do insist on flying on your own you must be aware of your proximity to R C club sites If there is an R C site within six miles of where you are flying and if you are operat...

Page 19: ...cation 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 a...

Page 20: ...hould you ever wish to change the transmitter frequency the transmitter must be sent to the Futaba Service Center for retuning 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 ser...

Reviews: