FUTABA FP-7FG 7ch User manual

DIGITAL PROPORTIONAL
RADIO CONTROL
OPERATION MANUAL
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FP-7FG/K (Dual-rate type) 7 CH
FP-6FG/K (Dual-rate tvpe) 6 CH
FP-7FG/E (Exponential tvpe) 7 CH
FP-5FG/K (Dual-rate type) 5 CH
FP-6FG/E (Exponential type) 6 CH
FP-5FG/E (Exponential type) 5 CH
CONTENTS |
e FEATURES «i. ia a a a a si e-0 e Throttle ATL (Adjustable Throttle Limiter) ......
e CONPOSITION AND SPECIFICATIONS ...... e-0 e Trim lever is used for fine adjustment ....:..... 0
e TRANSMITTER FP-T5FG .............. 0-0 e STICK MECHANISM AND ITS ADJUSTMENT ...... @
e TRANSMITTER FP-T6FG ........ RETTA: 6 e Transmitter antenna housing pocket. ..........
e TRANSMITTER FP-T7FG .............. 0-0 e RECEIVER FP-R7H & SERVO FP-S28 ........ 6
e CHARGING OF TRANSMITTER AND . ® INSTALLATION AND HOW TO HANDLE ... ©-©
RECEIVER NI-CAD BATTERIES............ © e Futaba Digital Proportional Frequencies ........ ©
SFRAINER= > dle ARE aa e A Ss © e FP-S26 & FP-S26G EXPLODED VIEWS ..... e-6
e ADJUSTMENT OF AILERON ELEVATOR
8 RUDDER DUAL-RATES OR
EXPONENTIALS Si in ei 6-0
Thank you for purchasing a Futaba digital proportional radio control set. Please read manual thoroughly
before using the set.
IMPORTANT:
An FCC Class ''C' License is required to operate this system. Write to the Federal Communications Commission as listed
below for an application form #505.
FEDERAL COMMUNICATIONS COMMISSION Gettysburg, PA 17236

*FEATURES OF TRANSMITTER:
@ Newly designed case and new open gimbal stick with adjustable tension and lever head.
e Aileron to rudder mixing (FP-T7FG) is ideal for giant scale and quarter scale models and gliders.
e Rudder from/to elevator mixing (FP-T7FG) is ideal for V-tailed aircrafts and gliders.
eMain channel servo reverse switches (FP-T5FG, T6FG, T7FG), are very convenient whenever reversing is
necessary.
e Aileron and elevator dual rate on/off (FP-5FG/K, FP-6FG/K), plus rudder dual on/off (FP-7FG/K).
e Aileron and elevator Exponential on/off (FP-5FG/E, FP-6FG/E), plus rudder Exponential on/off (FP-7FG/E).
e Aileron, elevator, and rudder ATVs (Adjustable Travel Volume) (FP-T7FG) permit independent left or right,
(up or down) adjustments to attain precise alignment as desired.
e Trainer system offers an easy training of flight for beginners.
e Adjustable Throttle Limiter (ATL) for throttle (FP-T5FG, T6FG, T7FG).
*RECEIVER FP-R7H:
GA compact, lightweight, rugged 7-channel receiver virtually invulnerable to power supply voltage changes
thanks to new Futaba Custom 1/C, IR-2501. |
eNewiv designed AGC circuit minimizes interference and dead points.
e High quality fiber glass through-hole printed circuit board secures soldering for shock and vibration.
e Three-wire gold-plated mini block connector is compatible with all Futaba servos.

*SERVO FP-S28:
@Extremely tough fiberglass reinforced Pory Butylene Terephthalata (PBT) case is both strong and fuel-
resistant.
@ Futaba custom IC improves the starting torque. Even though a power-saving type IC is used, output torque
is 3.5 kg-cm (48.7 in-oz), the highest of any servo in itsael
e Futaba's original potentiometer indirect drive system improves vibration and shock resistance noticeably and
extends the life of the servo substantially.
@Three-wire gold-plated 3P mini connector.
ePolvacetal resin ultra-precision gears, the strongest and the most accurate ensure precise neutral and eliminate
backlash.
*COMPOSITION AND SPECIFICATIONS
COMPOSITION:
[seta | sese | SN reni
E EE
Charger, Ext. cord, Servo tray, Spare horen, Ribbon, Hook band

SPECIFICATIONS:
TRANSMITTER (FP-T5, 6, 7FG) RECEIVER (FP-R7H)
Operating svstem...... T5FG/K: 2-stick, 4 switches Receiving frequencies . . . 27MHz band, 72MHz to 76MHz
(dual-rate) IF amplifier frequency . . . 455 kHz
TSFG/E: 2-stick, 4 switches Selectivitv.......... 3kHz/-3dB
(exponential) Range ............ 550 vards (500m) on the
T6FG/K: 2-stick, 4 switches, ground, 1100 vards (1000m)
1 lever (dual-rate) in the air.
T6FG/E: 2-stick, 4 switches, Power requirement..... 4.8V, Nicad battery (NR-4C),
1 lever (exponential) common with servo.
T7FG/K: 2-stick, 6 switches, Current drain ........ 4.8V,10mA
2 levers with MIX (dual-rate) Dimensions ........ . 16x26 x 0.8 inch
T7FG/E: 2-stick, 6 switches, | (41 x 69 x 21 mm)
2 levers with MIX (exponential) Weight............ 1.7 oz. (50g)
Operating frequencies . . . 27MHz band, 72MHz to 76MHz i
Modulation system..... AM (Amplified modulation)
Power requirement . . . .. 9.6V, Nicad battery (NT-8H)
Current drain ........ 150mA max. SERVO (FP-S28)
Control system ....... +pulse width control
Operating angle....... One side 45 min. (including trim)
Power requirement . . . .. 4.8 — 6.0V
Current drain ........ 6.0V, 8mA (when stopped)
Output torque ....... 48.7 oz-in (3.5 kg-cm)
Dimensons ......... 1.6x 0.8 x 1.6 inch
(40.5 x 20 x 40.5 mm)
Weight ............ 1.87 oz (53g)

©
*TRANSMITTER FP-T5FG:
Left side
el SCO
So ©
w direction.

D Aileron, elevator stick
@ ‘Throttle, rudder stick
G) CH5 landing gear switch
(4) Aileron trim
(5) Elevator trim
©) Throttle trim with ATL (Adjustable Throttle Limiter)
This trim lever is effective only at the throttle stick LOW
side.
@ Rudder trim
Aileron dual-rate or exponential on/off switch
@ Elevator dual-rate or exponential on/off switch
Trainer switch
Pull on/self-off switch. The transmitter connected by the
trainer cord (M-TC) operates and when it is OFF, your
own transmitter only operates.
(i) Power switch
(2 Square level meter indicates the transmitter output power
and indirectly shows power supply voltage.
(3 Antenna
Antenna storage
(5) Handle/stand
Hook for neck strap
(D Transmitter NiCad battery charging jack
Trainer cord socket
Aileron dual-rate or exponential trimmer
adjusts the aileron travel when the aileron dual-rate
or exponential on/off switch is ON.
Travel adjustment ranges 40 to 100%
Aileron servo reverse switch
reverses the direction of the aileron servo.
GD Elevator dual-rate or exponential trimmer
adjusts the elevator travel when the (9) elevator dual-rate
or exponential on/off switch is ON.
@2 Elevator servo reverse switch
reverses the direction of the elevator servo.
@3 Throttle servo reverse switch
reverses the direction of the throttle servo.
Rudder servo reverse switch
reverses the direction of the rudder servo.
@5) Landing gear servo reverse switch
reverses the direction of the landing gear servo.

XTRANSMITTER FP-T6FG
(addition to FP-T5FG controls):
6th CH lever
Use for flaps, etc.
@7) 6th CH servo reverse switch
Reverses the direction of operation of the CH6 servo.
Other controls are identical to those of the FP-T5FG.

T7FG
XTRANSMITTER FP-
(addition to FP
2
©
Èm
dad
c je,
(S) ©
LL
LO a
©
@®® and (0 are identical to those of the FP-T5FG.
7th CH lever

Rudder-elevator MIX (mixing)
7 3-position selector switch
Rudder-aileron MIX (mixing)
*
When
this
switch
is
set
to
the
rudder-elevator
MIX
position,
rudder
and
elevator
mixing
is
performed.
The
mixing
ratio
is
fixed
at
1:1.
This
is
used
with
V-tail
aircraft.
In
this
case,
two
servos
are
used,
one
for
the
left
and
the
other
for
the
right.
*
When
set
to
the
aileron-rudder
MIX
position,
aileron
and
rudder
mixing
is
performed.
Trimmers
and
adjust
the
mixing
amount and
direction.
Rudder dual-rate or exponential on/off switch. Aileron-rudder MIX trimmer
6)
62
Aileron
ATV
(Adjustable
Travel
Volume)
trimmer.
Adjust
the
mixing
amount
and
the
mixing
direction
from
GI)
RIGHT
is
for
the
right
aileron
and
62
LEFT
is
for
the
the
aileron
to
the
rudder.
After
aircraft
linkage
is
com-
left
aileron.
pleted
adjust
the
MIX
direction
and
amount
with
The
servo
travel
volume
is
independently
adjustable
to
the
trimmers.
left
and
right
from
the
neutral
position.
MIX
amount
adjustment
ranges
O—100%
each,
the
same
Travel
adjustment
ranges
0
to
100%
adjustment
can
be
done
even
if
the
servo
is
reversed.
63
G4)
Elevator
ATV
trimmer
7th
CH
servo
reverse
switch
63
UP
is
for
up
and
6)
DOWN
is
for
down.
reverses
the
direction
of
the
7th
CH
servo.
The adjustment range is same as the aileron ATV.
65 Rudder dual-rate Or exponential trimmer adjusts the
rudder travel when the rudder dual-rate or exponential
on/off switch is ON.
6) Rudder ATV trimmer.
The adjustment range is same as the aileron ATV.

*CHARGING OF TRANSMITTER
AND RECEIVER NI-CAD BATTERIES: AC-110V
Recharge the receiver and transmitter
Ni-Cad batteries as shown in Fig. 10.
J
Charger =
RW
eConnect the charging plug of the FBC-2A charger to the transmitter charging jack, connect the 3P connector
of the FBC-2A to the receiver Ni-Cad battery (NR-4C), and plug the FBC-2A to a 110VAC outlet as shown
in this figure. The TX and RX charging LED light; indicating that the batteries are being charged.
@The Receiver battery can be used about 10 times at 10 minutes per flight between rechargings.
eCharge the batteries for about 15 hours. When the set is not in use for some time, repeat discharge and
charge, two to three times before use. (If the batteries are not used for a long time, their capacity will go
down).
®FBC-2A charges transmitter and receiver Ni-Cad batteries independently or simultaneously.
©

TRAINER
Connect the transmitters with the trainer cord
(M-TC, purchased separatelv) as shown in Fig. 11.
When the switch is in the ON (pull) position, the stu-
dent's transmitter operates and when the switch is in
the OFF position, the instructor's transmitter operates.
The transmitter at which the trainer switch is operated
on-off becomes the instructor's. instructor transmitter | l
(Power switch ON and transmitter operating)
Student transmitter
(Power switch always OFF)
Neutral
* ADJUSTMENT OF AILERON, ELEVATOR
& RUDDER DUAL-RATES (K-TVPE):
Total
When the dual-rate switch is set to ON position, servo
operating angle becomes small (within the range
indicated by the hatched lines in Fig. 12). The servo
operating angle can be adjusted from 40% (minimum)
to 100% (maximum) by the trimmer provided on the
back panel of the transmitter. The dual-rate switch
should be normally set to OFF. However, when the
larger operating angle is required like the spin, etc.,
set it to ON and adjust the horn and trimmer for level
flight. When dual-rate switch is set to OFF, the servo
operating angle becomes larger.
©

*
ADJUSTMENT
OF
AILERON,
ELEVATOR
&
T'
Servo
Operating
Angle
`
RUDDER
EXPONENTIALS
(E-TYPE):
(l
ee
:
When switch is set to ON, servo operating angle shifts
on exponential curve per Fig. 13. Exponential curve
can be adjusted by trimmer on the back panel of the
transmitter. Normal servo movement is back at the
OFF
position.
—
—
|
Stick
Operating
Angle
*Throttle ATL (Adjustable Throttle Limiter)
ATL
is
a
new
device
that
trims
only
at
the
LOW
side
of
the
throttle
stick.
It has
almost
no
effect
at
the
high
side.
If
the
throttle
rod
is
set
at
the
engine
HIGH
side,
the
LOW
side
can
be
adjusted
to
any
desired
position
with
the
trim
lever.
The
trim
lever
has
almost
no
effect
to
the
HIGH
side,
which
is,
convenient
for
set-up.
*Trim lever is used for fine adjustment.
The
trim
lever
is
used
for
nuetral
position
adjustment
or
correction
of
the
posture
of
the
aircraft
after
installation
is
completed.
However,
after
test
flight,
try
to
keep
the
neutral
position
as
they
are
making
necessary
corrections
with
the
rod
adjusters,
etc.

XSTICK MECHANISM AND ITS ADJUSTMENT
e
The
new
gimbal
is
open.
This
e
Turn
with
a
Phillips
screwdriver.
one has been used oniv for the
most expensive radio controls.
It also has the built-in tension
adjustment mechanism on open
gimbal for the first time. Vou
can adjust tension of spring for
vour best stick feeling.
e When the core rises, the spring
tension increases.
e CP variable resistor improved
the neutral characteristics and
resolution tremendously.
e All molded parts made of
high-grade polycarbonate that
virtually eliminates the effects
of temperature and humidity.
*Transmitter antenna housing pocket
This
opening
is
used
for
storage
of
the
antenna
while
carrying
the
transmitter.
It
is
located
at
the
bottom
right
side
of
the
transmitter.

XRECEIVER FP-R7H
& SERVO FP-S28:
7th CH servo
t
i
i
I
!
7-channel AM receiver FP-R7H Receiver crystal sicn i
3 SSN i The items circled by
1 dotted line must be
! purchased separately.
i
i
i
i
i
i
DIGITAL PROPORTIONAL Landing gear servo
RADIO CONTROL SYSTEM
FP-R7H
PES
|
T2240mw))
7
CHANNEL
Landing
gear
servo
RECEIVER
A ntenna wire MADE IN JAPAN B À ie MSSP aS TT Sen EE ss ere ess rer es
Rudder servo
Elevator servo
Throttle servo
Aileron servo
® Connect the servos, switch, and Ni-Cad battery as shown in Fig. 15.
GExtend the transmitter and receiver antennas to their full length and set the transmitter and receiver power switches to ON, transmitter first.
@Operate the sticks, switches, and levers of the transmitter and make sure that the servos follow those transmitter operations.

INSTALLATION AND HOW TO HANDLE:
e After connecting the pushrods to the servos, check that the direction of the servo installed matches the
direction of the transmitter stick movement.
If the servo operates in the opposite direction, reverse its direction with the servo reverse switch.
@Operate each servo to its full operating angle and check if the pushrod is binding or loose. Unnecessary force
due to poor installation of the servo will adversely affect the servo and drain the battery quickly.
Always set the operating range of each function of aircraft somewhat larger than the full stroke (including
trim adjustment) of the servo, adjust the pushrod(s) as needed so that the servos operate smoothly even when
the trim lever and stick are operated simultaneously in the same direction.
@ When installing a switch harness, cut a rectangular hole somewhat larger than the full stroke of the switch and
= install the switch so that it moves smoothly from ON to OFF. When the switch is to be mounted inside of
the fuselage and to be turned ON and OFF with wire, make opening the same as described above.
Install the switch at the location where it will not come into direct contact with the engine oil, dust, etc.
eBe alert for noise. If the engine vibrations cause metal parts to touch, noise will be created and the receiver
and servos may be affected by this noise. We recommend the use of noiseless parts.
@Wrap the receiver and its Ni-Cad battery in sponge to protect them against engine vibrations.
e Even though the receiver antenna might be too long for your installation, do not cut or dundle it.
Run the antenna wire as straight as possible.
ePlace the receiver and its Ni-Cad battery in a plastic bag and wrap a rubber band around the open end of the
bag to prevent the entry of dust and water.
After use, remove the receiver and its Ni-Cad battery from the plastic bag to prevent evaporation.

e Install the servos firmly. See Fig. 16.
[Using wood screws]
+ Wood screw
œ> + Flat washer
|
walle
— Rubber bushing
JIL + Grommet
Wood `
tex né
om
H à
KE egene
A
p
[Using plywood or aluminum sheet)
|
|
Cc A't 2.3~2.6mm dia. nut
= + Flat washer
— Rubber bushing
JIL «+ Grommet
Plywood or aluminum sheet
+ 2.3~2.6mm dia. bolt
|
@A
spare
servo
horn
is
supplied
in
the
package.
Use
it
as
needed.
Do
not
forget
to
install
the
tooth
washer
when
changing
the
horn.
|
eFutaba
3-wire
servos
can
be
used
with
any
Futaba
radio
control
set.
(Except
the
J
Series).
Select
them
to
meet
vour
particular
need.
e
After
installation
is
complete,
and
each
part
has
been
rechecked,
then
extend
the
transmitter
antenna
as
short
as
possible,
extend
the
receiver
antenna
fully,
and
operate
the
set
from
a
distance
of
22
to
33
yards
(20m
to
30m)
to
check
range.
The
movement
of
each
servo
should
follow
the
operation
of
each
stick
of
the
transmitter.
e
After
installation
and
checking
are
completed,
it
might
be
a
good
idea
to
take
your
model
to
the
shop
where
you
purchased
it,
or
to
an
experienced
radio
control
modeler
and
ask
them
to
tell
you
how
to
handle
your
radio
control
set
correctly
and
to
inspect
your
set-up
before
you
run
it.
©

FP-S28 EXPLODED VIEW:
Futaba Digital oe Ba
— Band (1) 26.995MHz — Brown `
— Band (2) 27.045MHz Red
Band (3) ` 27.095MHz ` Orange `
| Band(4) 27.145MHz Yellow `
Band (5) 27.195MHz Green o
+ 72.080MHz Brown/White —
= 72.160MHz Blue/White `
+ 72.240MHz Red/White on
= 72.320MHọHz ` ` Violet/White ` `
+ 72.400MHz — Orange/White `
7 72960MHz Yellow/White ` `
+ 75.640MHz Green/White
-
Aircraft
use
only.
eThe frequency of Futaba digital proportional sets
can be changed among bands (1)~(5) on the 27MHz
band only.
@ However, a 27MHz band set cannot be changed to
72MHz band, and vice versa.
@Therefore, always attach the correct frequency flag
to the end of the transmitter antenna. Each frequen-
cy band has its own designated color, as stated
above. The frequency flag is intended for identifica-
tion purposes.
e Also change the frequency flag when changing the
crystal.
eFutaba paired crystals are precisely matched.
Always use a Futaba crystal set (transmitter,
receiver) when changing the frequency.
elt is illegal to change crystals of transmitter on
the 72-76 MHz bands in the U.S.A.
©

FP-S26G EXPLODED VIEW
Landing gear servo
Part ane Parc Del Fark Feo]
2 | Middle case kan rose
i I 2
|
3: | Bottom case }
4.| Metal bearing S 04134 Le
| 5. Motor pinion SO2461
——-— A >
6 | Potentiomer drive plate S 02753 i "reese
l
8 | Motor pinion S 02461 [9 | 3rdstagegear ` Tree
Final FGS26G
9 | Screw 2x3 J 50002 [10 | Final stage gear | Fesæs |
11
12
3
Intermediate shaft SO2495
2nd stage shaft
10.| Ist gear
2nd gear
12 | 3rd gear
_
Output shaft
Wave washer
Push nut
S 02495
S 02494
Intermediate shaft
2nd shaft
-à
< 3
<
Fiber washer 2.3 m/m
Servo horn D
Screw, truss 2.x 5
Binding head tapping screw 2.6 eu FSH-41
d
18 | Printed wirina board AS1202
| Sy Sree
IECH 3PB-WRB300 FPC-8M
S 28 with 3PC cord FPC-3M
2 m/m toothed washer
Screw, binding head tapping 2 x 8 FSH-31
Neo-cel sponge
20 | w/gum bush | S 90045 Neo-cel sponge
21 | Pan head truss screw J 50400 Printed wiring board
22 | Nameplate | S 80700
Screw Phillips panhead 2 x 35
S26G Name Plate
EEREBEL