FUTABA FP-8SSAP User manual

Futaba
DIGITAL PROPORTIONAL
RADIO CONTROL
PCM
SINGLE STICK
PULSE CODE MODULATION SYSTEM

Thankyou for purchasing a Futaba
digital proportional radio control set
Please read this manual carefully before using your set.
The names and functions of the transmitter controls can be easily understood
by reading this section with the three-fold page at the end of this manual unfolded.

TABLE OF CONTENTS INDEX FOR TRIMMER PANEL FUNCTIONS
GENERAL INFORMATION
Features ............................ .2~3
Contents and Ratings ................... .4
Glossary of Terms
...................... .5~6
Basic Transmitter Controls ..................6~9
Batteries and Charging Instructions ............. 10~11
Tachometer/Timer Operation ................ .12~14
Receiver and Servos ..................... .15
ADJUSTMENTS AND FLIGHT TECHNIQUES
Basic Linkages and Installation ............... .16
Using ATV (Adjustable Travel Volume) .......... .17~18
2ND ATV (Conventional) .................. . 19
Servo Reversing Switches .................. . 19
Using Dual Rate (Aileron, Elevator, and Rudder) . . . . . 20
Automatic Dual Rate on Rudder .............. . 21
Using VTR (Variable Trace Ratio) ............. . 21
Suggestions on ATV, D/R, and VTR ............ .22
Using ATL (Adjustable Throttle Limit) .......... .23
FS (Fail Safe) and HOLD Functions ............ .24
BFS (Battery Fail Safe) and BFS Memory ........ .25
Servo Test Functions ..................... .25
Aircraft with Variable Pitch Prop ............. .26~27
Throttle Position Trimmer ................. .28
Aircraft with Flaps ...................... .29
Elevator/Flap Mixing .................... .29
Flap/Elevator Mixing (Pro-Set Flaps and Etev. Trim). . . .30
Aircraft with Flaps and Spoilers (Airbrake) ........ .30)
Flap
Trim Function ..................... .31
Snap Roll Switch ....................... .32
Programmable Mixing and Examples. ........... .32~33
Mutual (Bi-directional) Mixing (FLPRON,
ELEVN, V-TAIL, DIFF) .................. .34~36
FP-S130and FP-S130G Exploded Views ......... .37
Transmitter Controls ..................... . 38 39
Splined Horns
..........................40
Switch or Description Ref. Page
Trimmer
Number
1 Aileron Dual Rate 1 Trimmer .............20
2 Aileron Dual Rate 2 Trimmer .............. .20
3 Aileron Linear/VTR Safety Switch .......... .20
4 Throttle Delay Trimmer ................. .26 27
5 Pitch Delay Trimmer ................... .26 27
6 Throttle/Pitch Mixing Trimmer ............. .26 27
7 Throttle/Pitch Mixing Safety Switch .......... .26 27
8 Throttle Position Trimmer ............... .26 28
9 Elevator Flap Mixing Trimmer ............. .29
10 Elevator Flap Mixing Safety Switch .......... .29
11 & 12 Programmable Mixing Rate Trimmers ..... .32 33
13
Slave Channel Mixing Board .............. .32 33
14 Master Channel Mixing Board ...............32 33
15 Aileron Differential
Trimmer .............. .34~36
16 ELEVN/V. Tail Mixing Switch ............. .35~36
17 FLPRON/DIFF Mixing Switch ............. .34~36
18 Flap Switch ........................ .31
19 Airbrake Elevator Trimmer ............... .30)
20 Airbrake Flap Trimmer ................. .30)
21 Rudder Dual Rate Trimmer ............... .20
22 Rudder Linear/VTR Safety Switch .......... .20
23 Elevator Dual Rate Trimmer .............. .20
24 Elevator Linear/VTR Safety Switch .......... .20
25-28 Snap Roll Timer Setting Trimmers (Optional) . • .32
29 Snap
Roll Safety Switch .................. 32
30 Switch 16 Function Select Switch ............ 21
31 Automatic Dual Rate Rudder Safety Switch ...... 21
32 Flap, Spoiler Elevator Mixing Switch ......... .30
33 Throttle Flap, Spoiler Elevator Mixing Switch . . . . .31
34-35 Aileron 2ND ATV Trimmers ............ .19
36 37 Elevator 2ND ATV Trimmer ............ .19
38-45 Servo Reversing Switches .............. .19
46-47 ATV/FS Buttons ................... .17 23~25
48 Channel Select Switch ...................18 23~25
49 Function Select Switch ................. .18 23~25
1
NOTE:
Please read and follow instructions for installation and usage in their entirety and
follow carefully. Failure to follow instructions could result in serious property
damage and/or personal injury. This system is intended for use by experienced
R/C hobbyists. Beginners should seek expert advice and Assistance before operat-
ing this system.

•FEATURES
The FP-8SSAP was specially developed to use PCM (pulse code modulation) for FAI
RC aerobatics F3A aircraft. It is an extremely noise and dead-point resistant digital
proportional RC set with a microprocessor in the transmitter and the receiver. Please
read this manual before using your set.
TRANSMITTER FP-T8SSAP
• RF module system. The frequency band can be
changed with one touch.
• DSC (Direct Servo Controller) allows operation
of the servos without turning on the transmitter.
Wire operation is possible by using the special
cord supplied (FSC.1).
•Servo reversing switch for all channels allows
reversing of the servos with the flip of a switch.
• Dual rate or non-linear VTR (variable trace
ratio) aileron, elevator, and rudder. Two-stage
dual rate on aileron.
• Rudder auto dual rate. Rudder dual rate is
turned on and off automatically with operation
of the throttle lever.
• Newly designed rotatable open gimbal stick
provide maximum operation feel. Stick position
and springtension can be adjusted.
• New throttle -> pitch control mixing is perfect
for variable pitch propeller which maximizes
engine power and propeller efficiency.
• Mutual mixing function allows aileron + eleva-
tor, aileron + flaps, and aileron + rudder mixing
and aileron differential operation.
• Elevator -> flap mixing is especially advantageous
in circle aerobatics.
• Flap, spoiler -> elevator mixing allows control of
the aircraft attitude while using the air brake
(flap,spoiler).
• Throttle -> (flap, spoiler) -> elevator mixing
allows enhancement of the air braking effect by
throttle lever operation when diving and landing.
• Programmable mixing function permits mixing
with the desired channel.
• Four-function snap roll switch (Timer is op-
tional).
• Idle-up lever, the engine idling speed can be
independently adjusted during throttle -> pitch
control mixing.
• New single-chip microprocessor allows one-touch
fail safe setting and introduction of an automatic
transmission system which eliminates the need
for fail safe setting at the beginning of each
flight and improves safety.
•Pitch control lever. HIGH side pitch of variable
pitch propeller can be adjusted during throttle
-> pitch control mixing.
• New ATV (Adjustable Travel Volume) on all
channels allows independent adjustment of servo
left, right, up, and down throw.
• Second ATV. Besides new pushbutton ATV on
aileron and elevator, conventional trimmer ATV
is also installed.
• Monitor lamp comes on when throttle -> flap,
spoiler -> elevator mixing or throttle -> pitch
control mixing and flap, spoiler -> elevator mix-
ing and snap roll are set and goes out when they
are in use.
• Fail-safe switch (function OFF switch) is pro-
vided for each function so that only the desired
functions need be turned
on.
•Throttle ATL (Adjustable Throttle Limiter)
makes throttle linkage simple and positive.
• Two servo test functions. A slow sweep to check
neutral characteristic, trackability cycle servo to
test servo operation.
•Tachometer/timer with built-in tachometer, up
timer, down timer, integrating timers, and bat-
tery alarm functions.
• Built-in power error back-up circuit. When the
internal Nicd battery approaches the fully dis-
charged state, an LED flashes to indicate that
the memories presetted (memory, ATV, FS,
etc.) are gone. Please charge battery and set all
memory functions again.
• Highest quality anodized aluminum case with
sophisticated transmitter design gives easy com-
fortable feeling to your hands.
•Trainer system offers an easy training of flight
for beginners.
2

RECEIVER FP-R118GP
•The receiver of this set is a miniature PCM re-
ceiver in which the highest reliability has been
pursued. It is the first R/C receiver in the world
to incorporate the newest computer technology.
• Miniature PCM receiver with high speed single
microprocessor. Resistance to adjacent band and
spark noise interference has been increased by
one full order of magnitude.
• Microprocessor servo hold function eliminates
erroneous
operation when a "dead point" area
is entered.
• Microprocessor provides fail safe and battery fail
safe functions for greater safety.
• Error lamp display allows checking of the receiv-
eroperatingstate.
• DC-DC converter in the power supply improves
low-voltage operation characteristics.
• High sensitivity design with RF amplifier.
• Ultra narrow-band ceramic filter and PCM sys-
tem are invulnerable to adjacent band inter-
ference.
• Gold plated connector pins eliminate poor con-
tact. Polarized housing improves reliability
against shock and vibration.
• DSC circuit. Each servo can be controlled from
the transmitter without turning on the transmit-
ter by connecting the transmitter directly to the
C terminal.
SERVO FP-S130
•Small, double ball bearing, water-tight & dust-
tight servo. High output torque 55.6 oz-in (5kg-
cm), high-speed .24sec/60°.
• New indirect drive potentiometer improves
vibration and shock resistance and neutral
precision.
• Futaba low-power custom 1C provides high start-
ing torque, narrow dead band, and excellent
trackability.
• Fiberglass reinforced PBT (polybutylene ter-
ephthalate) molded servo case is mechanically
strong and invulnerable to glow fuel.
• Strong polyacetal resin ultra-precision servo gear
features smooth operation, positive neutral, and
verylittlebacklash.
• Fiberglass reinforced epoxy resin PC board with
thru-the-hole plating improves servo amp vibra-
tion and shock resistance.
•Thick gold plated connector pins ensure positive
contact and improve reliability against shock and
vibration. The connector housing is polarized to
prevent reverse insertion.
• Six special adjustable splined horns.
3
SERVO FP-S130G
•Small retractable landing gear servo with high
class 5-pole micromotor. High output torque
4.7kg-cm, high-speed 0.34sec/60°, waterproof
type.
•Since forward/reverse operation is controlled by
the pulse width of the signal generated by turn-
ing the transmitter snap switch on and off, the
motor stops at the end of its throw in either
direction.
• Unlike other proportional servos, motor drive
current does not flow when the servo is stopped
even if a load is applied. Thus current drain is
extremely low.
• Fiberglass reinforced PBT (polybutylene ter-
ephthalate) injection molded servo case is me-
chanically strong and invulnerable to glow fuel.
•Strong polyacetal resin ultra-precision servo gear
features smooth operation, positive neutral, and
very little backlash.
• Fiberglass reinforced epoxy resin PC board with
thru-the-hole plating improves servo amp vibra-
tion and shock resistance.
• Thick gold plated connector pins ensure positive
contact and improve reliability against shock and
vibration. The connector housing is polarized to
prevent reverse insertion.

•CONTENTS AND RATINGS
Ratings and specifications are subject to change without prior notice.
Model
Transmitter
Receiver
Servos
Switch
Nicd battery
Accessories
FP-8SSAP
FP-T8SSAP x 1 with module FP-TF-FM
FP-R118GPx1
FP-S130x4
SWH-5x 1 (R4-SWJx1»
NR-4Jx1
Batterycharger,landinggear adaptor, DSC cord,CHG adaptor, DSC-CHGcord,
servo tray, frequency flag, spare horn, screws
Transmitter FP-T8SSAP ReceiverFP-R118GP
Operating system
Transmitting
frequency
Modulation
Power requirement
Current drain
Chosen
band
Single-stick, 8 channels for
F3A pattern
50/53MHz BANDS
72/75MHzBANDS
53MHz ~ 72MHz
Frequency change to any of
above bands is possible by
merelychangingRFmodule.
PCM,FM
9.6V 8/500mAH internal
Nicd battery
250mA
Receiving frequency
Intermediate
frequency
Power requirement
Current drain
Dimensions
Weight
Receiving range
50/53MHz BANDS [chosen
72/75MHz BANDS (band
455kHz
4.8V Nicd battery (shared
withservo)
42mA (4.8V reception)
2.23 x 1.65x0.94 in
(57 x 52 x 24mm)
1.85oz (53g)
500m on the ground
1000m in the air
When FP-T8SSAP used.
(At the best radio wave con-
dition of environment)
4
Servo FP-S130 Landing Gear Servo FP-S130G (Option)
Control system
Operatingangle
Power requirement
Current drain
Output torque
Operatingspeed
Dimensions
Weight
1520
+pulse width control,
uS.N
One side 45° or greater
includingtrim)
4.8V (shared with receiver)
5mA (at idle)
55.6oz.in(4kg-cm)
0.24 sec/60°
1.52
x 0.77 x 1.36 in
(38.5 x 19.5x34.5mm)
1.47oz(42g)
in-
Control system
Operatingangle
Power requirement
Current drain
Output torque
Operating speed
Dimensions
Weight
+pulse width control
Rotary approx 160°
4.8V (shared with receiver)
8mA (at idle)
65.3oz.in (4.7kg-cm)
0.34 sec/60°
1.52x0.77x 1.36 in
(38.5 x 19.5x34.5mm)
1.48oz (42g)
Battery Charger FBC-8B(2) Receiver Servo Nicd Battery NR-4J
Input voltage
Output
: 120VAC,50/60Hz
: TX side 9.6V/45mA
:RX side 4.8V/45mA
Voltage
Dimensions
Weight
: 4.8V, 4/500mAH
: 2.01 x 2.28 x 0.59 in
(51 x 58 x 15mm)
: 3.35oz (95g)

GLOSSARYOFTERMS
NOTE: Please take the time to familiarize yourself with the terms and abbreviations
below. They will be used throughout the instructions and are important in understand-
ing the operation and potential of your system.
PCM (Pulse Code Modulation) SERVO REVERSING
Pulse Code Modulation utilizes a precise digital
code to convey information from the transmitter
encoder to the receiver. This state of the art meth-
od makes many of the sophisticated functions of
the FP-8SSAP possible, as well as providing far
superior immunity to noise and interference than
is possible with conventional encoding methods.
ATV (Adjustable Travel Volume)
This feature allows independent adjustment of
servo travel in each direction. ATV is sometimes
referred to as "endpoint adjustment". Two dif-
ferent types of ATV are standard with this system,
(1) Pushbutton or Programmed (Memory) ATV
and (2) 2nd ATV (Conventional).
MEMORY ATV
This type is available on all eight channels. These
adjustments are stored in the transmitter memory
circuit and are retained when the power switch is
turned OFF. They are lost however, if the trans-
mitter Nicd batteries reach full discharge.
2ND ATV
Available on Aileron (CH 1) and Elevator (CH 2).
This is the conventional type ATV which is set by
using trimmer pots on the transmitter back panel.
These settings are NOT affected if the transmitter
batteries are discharged.
DUAL RATE
Rate switches allow the pilot to select different
servo travel limits (for varying control sensitivity)
in flight. Servo travel is affected equally in both
directions from center.
SAFETY (ACT/INHIB) SWITCHES
These switches, located on the transmitter trimmer
panel allow mixing and certain other functions to
be deactivated when not desired. When the Safety
Switches are set to the INHIB position, the func-
tion will remain OFF even if the transmitter con-
trol switch isset toON.
VTR (VARIABLE TRACE RATIO)
This is a special type of non-linear control re-
sponse. When VTR is used, servo travel is normal
and linear up to about 80 percent of the transmit-
ter control stick movement where the servo travel
is abruptly increased to a higher rate (both rates
adjustable). This allows a normal feel for most fly-
ing with extra movement available for emergencies
and certain acrobatic maneuvers. Another way to
think of this function is as "automatic Dual Rate".
This function allows the modeler to reverse the
direction of servo movement (in relation to con-
trol stick movement) for various installation re-
quirements. This can be done by conveniently
flipping a switch on the trimmer panel. Servo
travel and neutral position are not affected.
BFS (Battery Fail
Safe)
This function provides a warning to the flyer when
airborne battery voltage reaches a critically low
level by moving the throttle servo to medium slow
or slow position.
ATL (Adjustable Throttle
Limit)
This feature makes adjusting the throttle linkage
much
easier. The throttle trim lever affects only
the LOW or IDLE position and not the HIGH
throttle servo position. Therefore, the linkage can
be set for proper opening at high throttle and the
trim lever used to set the proper idle speed with-
out changing the maximum opening.
MIXING
In general, mixing functions allow two or more
different channels to be operated by moving a
single transmitter control. Many useful and versa-
tile functions are made possible in this manner.
Three types of mixing functions are provided.
(1) Unidirectional mixing — This function allows
one or more channels to be "slaved" to a "master"
channel. Movement of the master channel control
causes movement of both master and slaved servos
simultaneously. Operation of the slave channel
control however, does not cause movement of the
master channel servo. An example is Aileron/Rud-
der mixing (see page 33) where the Rudder is
slaved to Ailerons for coordinated turns.
(2) Mutual (Bi-Directional) Mixing - With this
type of mixing, two channels are mixed so that
operation of the control for either channel causes
movement of both servos. This is useful in provid-
ing sophisticated functions such as V-tail opera-
tion, flaprons, and elevens on tailless designs.
(3) Switch-Activated Mixing — Two or more-
channels can be programmed so that the servos
involved move to a preset position when a trans-
mitter control switch is pulled or button pushed.
Snap roll switches, roll buttons, and pre-set flap
switches are examples of this type of mixing.
5

PROGRAMMED MIXING FAIL SAFE
Unidirectional mixing of any two channels desired
is possible using the pin board and jumper con-
nectors on the transmitter back panel. Either chan-
nel may bedesignated as "master" or "slave".
DSC (Direct Servo Control)
Operation of the entire system with the transmit-
ter switch in OFF position is possible using the
DSC cord. This is useful for checking and adjusting
control movements on the ground while someone
else is flying on your frequency.
The Fail Safe function moves servos to a pre-set
position if the transmitter signal is lost or inter-
rupted by strong interferrence. The servos will be
held in the pre-set position until a proper signal is
again received atwhich time Fail Safe isreleased.
HOLD
The Hold function holds servos at the same posi-
tion as immediately prior to signal interruption.
Holdis releasedwhena propersignal isresumed.
•Trainer system offers an easy training of flight
for beginners.
•BASICTRANSMITTERCONTROLS
The servo reversing switches are assumed to be in the normal position in the descrip-
tions in this section. When the reversing switches are in the reverse position, servo
operation is the opposite of that described here.
6
The names and functions of the transmitter
controls can be easily understood by read-
ing this section with the three-fold page at
the end of this manual unfolded.
1 Aileron stick Controls the ailerons.
2 Elevator stick Controls the elevators.
3 Throttle lever Controls the throttle.
4 Rudder knob Controls the rudder.
5 Landing gear switch Controls the landing gear.
6 Flap and flap trim control (CH6) knob
7 Spoiler (CH7) control knob
8 Pitch control (CH8) lever and pitch control
HIGH side trimmer
9 Idle-up lever
10 Flap, spoiler -> elevator (6, 7 -> 2) mixing ON-
OFF switch
11 Throttle -> (flap. spoiler) -> elevator
(3 — 6. 7 ->
2) mixing / Throttle -> pitch control mixing
ON-OFF switch
12
Elevator-> flap (2 -> 6) mixing ON-OFF switch
13 Snap Roll ON-OFF switch (self
off)
14 Aileron dual rateswitch (2-stage)
15 Elevator dual rate switch
16 Rudder dual rate/Programmable mixing ON-
OFF switch
17 Aileron trim lever
18 Elevatortrim lever
19 Throttle trim lever with ATL
20 Rudder trim lever
21 Tachometer/timer
The tachometer/timer has the following func-
tions:
1. TACHOMETER
• Measurement by external sensor
• Two blade propeller specifications
• LOW range 100 to 30,000 rpm
Error 100 rpm
•HIGH range 100 to 60,000 rpm
Error 200 rpm
2. UP TIMER
• 0 to 60 minutes with seconds display
3. DOWN TIMER
• 60 to 0 minutes with seconds display
4. INTEGRATING TIMER
• 0 to 60 hours with minutes display
5. BATTERY ALARM
• Alarm sounds when the transmitter Nicd
batteries approach the
usage limit.

22 Monitor Lamps
IMPORTANT: In all instructions on control functions. Items designated by a number inside a circle
(For example 10 ) are transmitter controls normally accessable and operated in flight.
Items designated by a number within a box (For example 10 ) are adjustment functions not operated
while in flight.
Lamp A Power Monitor
• When the power switch 23 is set to ON, this lamp flashes on
briefly and then goes out momentarily as the Fail Safe data is auto-
matically matically transmitted to the receiver. Fail Safe data is
transmitted every 60 seconds at which time the lamp also goes out
momentarily. If the transmitter Nicd battery nears full discharge,
this lamp starts blinking, indicating that the power error backup
function is activated. When this occurs, transmitter memory func-
tion settings are lost and must be reset.
Lamp B 3-> 6. 7 -> 2 I 3 -> 8 Mix
This lamp comes on when Safety Switch 7 and/or [33] is set to
ACT position, indicating that throttle —-> flap, spoiler —-> elevator
mixing and/or throttle -> pitch control mixing functions are activat-
ed. This lamp will blink when transmitter control switch II is set
to ON (placing these functions in operation).
Lamp C 6, 7 -> 2 Mix
• This lamp comes on when Safety Switch [32] is set to ON (flap,
spoiler -> elevator mix) or CH7 OFF (flap -> elevator mix) position.
This lamp blinks when transmitter control switch 10 is set to ON.
Lamp D Snap Roll
Fig.1
• When Safety Switch [29] is set to ACT (snap roll function acti-
vated), this lamp blinks. When the Snap Roll switch 13 is pulled,
this lamp continues blinking.
When the power switch 23 is set to ON, lamp (A) will go out momentarily. This indicates automatic data
transmission on and is not a failure.
7
23 Power switch
• The transmitter power ON-OFF switch is pro-
vided with a locking feature to prevent acciden-
tal movement. To operate the switch, pull the
knob gently outwards and set to the desired
position (UP=ON. DOWN=OFF).
25 Level meter
• This meter indicates the transmitter battery
voltage and output power.
•When the antenna 26 is extended fully and
the power switch 23 is set to ON, the pointer
should move to the white zone.
•If the transmitter RF Module
32 is not in-
stalled, the meter pointer will not move.
• If the meter pointer moves to the red zone,
indicating that the Nicd battery voltage is low,
the
signal range will become shorter. If the
Tachometer/timer 21 power switch is ON, the
battery alarm function will operate afterabout
one more flight. When the meter pointer stops
at the boundary between the white and red
zones, recharge the battery.
26 Antenna
Strong 1m 10cm telescoping antenna. Extend
the antenna to its full height when using the
transmitter. The antenna will lock in place with
a click when pulled up to its full height.
27 Carrying handle
28 Tachometer sensor connector
•When not using this connector and the charg-
ing socket 29, cover them with the rubber-
backed cover supplied to protect them against
dust.
29 Charging socket and DSC (Direct Servo Con-
troller) connector
• This connector is used as both the charging
socket and DSC connector. See page 10 for
charging instructions.

32 Transmitter RF module
• Change this module when switching frequen-
cy bands (50, 53, 72, and 75MHz).
34 Snap roll direction switch (R/L)
35 Snap roll direction switch (UP/DOWN)
•These switches control the direction of the
snap roll when the Snap roll switch 13 is used.
36 Fail safe set button
• This pushbutton is used when setting the Fail
Safe servo positions (FS instructions Page 24).
37 Back Cover
• Removal of this cover exposes the trimmer
panel. Remove as shown in Fig. 3.
Remove the back cover by pulling
these stoppers in the arrow direc-
tion.
Fig. 3
Fig. 2
Transmitter crystal
A temperature rise
at the RF module
sectionduringuse
is normal.
While pushing this tab to the
inside, pull the RF module
forward.
8
38 Trimmer Panel
•This panel contains switches, buttons, and trimmers for setting and adjusting the many versatile
transmitter functions. Use the small screwdriver supplied with the set for making adjustments.
Use the transmitter with fail-safe switches [7], [10], [29], [31], [32], and [33] in the INHIB (function off)
positionuntil youbecomefamiliarwiththeset.
39 Trainer cord socket
Fig. 4

40 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.
• Trainer
Connect the transmitters with the trainer cord
(M-TC-FM, purchased separately) as shown in
Fig.5. When the switch is in the ON (pull) posi-
tion, the student's transmitter operates and
when the switch is in the OFF position, the
instructor's transmitter operates. The transmit-
ter at which the trainer switch is operated on-
off becomes the instructor's.
Fig. 5
Student transmitter
Instructor transmitter
(Power switch ON and transmitter operating)
(Power switch always OFF)
• Rotative open gimbal stick
• Rotative open gimbal stick allows setting of the
operating direction of the stick within a range of
±34 degrees by losening screws I to 4 in the
figure 1/2 turn and turning the stick grille.
• Set the stick in the direction in which operation
is easiest.
Fig. 6
• After setting, retighten the screws.
• The new gimbal is open. This one has been used
only for the most expensive radio controls. It
also has the built-in tension adjustment mech-
anism on open gimbal for the first time. You can
adjust tension of spring for your best stick
feeling.
• Remove the rear panel and right side panel and
adjust the spring tension.
Right side panel mounting screw
Remove these
screws, and
remove the longer
back cover.
Fig. 8
Common screw
Fig. 7
Rear panel Mounting screw
Common
screw
TurnwithaPhillipsscrewdriver.
The spring tension can be adjusted as desired
by removing the transmitter longer back cover
and turning the adjusting screw of each stick.
Adjust the spring tension for the best stick feel.
9

•BATTERIES AND CHARGING INSTRUCTIONS
10
AC-120V
Battery charger
FBC-8B (2)
LED
Antenna
Receiver Female
Female
Install the accessory
DSC.CHG cord
(connector with tab)
to the side of the
aircraft fuselage to
use the charging/DSC
socket.
R4-SWJ
Female
Male
DSC.CHG
cord
Female
Male
Fig. 9

Before using your system, recharge the Nicd bat-
teries
asfollows:
•Connect the DIN connector of the FBC-8B (2)
battery charger to the transmitter charging
socket 29. Also connect the 3P connector to
the airborne NR-4J Nicd battery and plug the
battery charger into a 120VAC outlet as shown
in Fig. 9. The airborne batteries can also be
charged through the DSC/CHG harness by con-
necting the CHG adaptor to the charger as
shown in Fig. 9. In this manner, the airborne
batteries can be charged without removing them
from the model.
•Normally recharge the battery for about 15
hours. If it has not been used for some time,
discharge and recharge it two or three times and
then charge it a full 15 hours.
• The amount of time remaining before the bat-
teries must be recharged can be estimated
using the Integrating Timer function of the
Tachometer/Timer
21. It is recommended
that this function be used to monitor remain-
ing flying time. (See Page 12 for detailed
instructions.)
•The Direct Servo Controller system connects
the signals from the transmitter directly to
terminal C of the receiver through a wire and
controls the
servos without radiating radio-
waves. It is extremely convenient when flying
on the same band or during meets, etc.
• Make the connections shown in Fig. 9. Con-
necting the
special DSC.CHG cord with tab to
receiver terminal C and installing it to the side
of the aircraft fuselage is very convenient.
•When the DIN connector of the DSC cord is
connected to the DSC connector 29, the
power to the encoder inside the transmitter is
turned on. The transmitter power switch is
OFF.
• When not using the DSC, disconnect the DIN
connector.
• To operate the servos, turn on the receiver
andservoswitch.
Charging socket
and DCS connector
DSCcord
Male
Female
CHG
Adaptor
Male
Make.this
connection when
usingthe DSC.
Female
29
Notes:
(1) F irst, connect to TX Nicd and red lamp goes
on.
(2) Then, connect to RX Nicd after connecting
L.E.D, changes color from red to greenish
red (orange) which indicates that both TX
and RX Nicds are being charged.
(3) In case of separate charging, L.E.D, color
willbe:
RX Nicd-Green TX Nicd - Red
•The transmitter and receiver Nicd batteries can
be charged together or independently.
•A fully-charged transmitter battery can be used
for about 10 flights of 10 minutes each. The
airborne NR-4J Nicd battery can be used for
about 6 flights when 6 servos are used and about
4 flights when 10 servos are used.
• If the system is not to be used for some time, it
should be fully charged before storage and
recharged monthly to avoid full discharge and
loss of memory settings (ATV, FS, BFS memory,
etc.).

•TACHOMETER/TIMEROPERATION
NOMENCLATURE AND FUNCTIONS
REV. RANGE SW LIQUID CRYSTAL DISPLAY
Switches the range when used as a
tachometer. LOW -100to30,000 rpm.
HIGH -100 to 60,000 rpm
Fig. 10
Do not press the keys too quickly.
Press them at a speed of about once
per second. |
POWERSW
Tachometer/timer power switch.
MODE DISPLAY
< is displayed at the mode selected at
the MODE SEL key switch.
INTEGRATING TIMER
Blinks during counting
andstopsblinkingwhen
counting stops.
UP TIMER
DOWN TIMER
TACHOMETER
Selects the tachometer/timer mode.
TIMER mode and
TIME SET KEY SW
isdisplayed.
This switch sets the alarm time in the UP TIMER
and DOWN TIMER modes. One minute is set each
time this key is pressed. If it is pressed and held for
two seconds or longer, the time is set in 5 minute
steps.
A beeping signal begins 10 seconds before the dot
time. A beep is produced every minute to indicate
the lapse of time.
ENTER
KEYSW————————————————————
This switch is used for memorization, starting,
stopping, and clearing in the UP TIMER and
DOWN TIMER modes. In the INTEGRATING
TIMER mode,thisswitch actsasthe resetswitch.
Do not expose the display to direct sunlight
for a long time.
The INTEGRATING TIMER mode is selected and
is displayed when the power is turnedon.
The first time this switch is pressed, the UP TIMER
mode is selected and
isdisplayed.
The second time it is pressed, the DOWN TIMER
mode is selected and isdisplayed.
The third time it is pressed, the TACHOMETER
mode is selected and isdisplayed.
Thefourthtimethisswitchispressed,the
tachometer/timer returns to the INTEGRATING
12

OPERATING INSTRUCTIONS
the tachometer mode is selected. Hold the sensor
about 20 to 30 cm from the rotating propeller
(two blade). The propeller speed is displayed on
the LCD.
Sensor
indicates that the propeller is rotating at
12,300 rpm. For propeller speeds up to 30,000
rpm, set the REVOLUTION RANGE switch at the
upper left-hand corner to LOW and for propeller
speeds above 30,000 rpm, set the REVOLUTION
RANGE switch to HIGH.
The speed of a three blade propeller is displayed
valuedividedby3x2.
The speed of a four blade propeller is 1/2 the dis-
played value.
——Measure the speed of the
\ rotating propeller at this
point
Connect the accessory tachometer
sensor to the sensor connector
as shown above. Fig. 11
Make all speed measurements outdoors under
natural lighting. Accurate speed measurements
cannot be made indoors under artificial lighting
because of the affect of the 50 or 60 Hz power.
Make all
measurements
under natural
lighting.
20 30cm
Sensor
Fig. 12 13
The speed of model boat
and car engines can also be
measured in this fashion.
Warning: Use extreme cau-
tion. There is danger of
serious injury or death.
Draw two lines
on the flywheel
with magic ink.
Holding the sensor too close
to a spinning propeller is
dangerous.
1.Tachometer
Set the tachometer/times POWER switch to ON.
appears on the display. Next, press the
MODE SEL key switch at the upper-right corner
three times. The display changes to and
To measure the speed of the main rotor of a
model helicopter, measure the speed of the tail
rotor as shown in Fig.13. and calculate the exact
speed from the equation.
Main rotor speed = Tail rotor speed
Main rotor and tail rotor gear ratio
Sensor
Helicopter tail rotor
Fig. 13

Note do not expose the liquid crystal display to
direct sunlight for a long time.
Selects the tachometer/
timer mode.
Tachometer/timer po-
wer switch.
Switchesthe rangewhen
used as a tachometer. This switch sets the
alarm time.
Memorize, start, stop,
and clear switch.
is displayed at the
Fig. 14
mode selected at the
MODE SEL KEYSW.
2.UP TIMER
Set the tachometer/timer POWER switch to ON.
is displayed. Next, press the MODE.SEL
key switch at the upper right-hand corner one time.
The display changes to , and the UP
produced every minute to indicate the passage of
time. To stop counting, press the ENTER key
switch again. The usage time is displayed on the dis-
play. For example, means that 12 minutes
TIMER mode is selected. When the ENTER key
switch at the bottom right-hand corner is pressed, a
beep is head and the timer starts and the second
digit of the display changes every second. A beep is
:05 seconds had elapsed. The UP TIMER mode can
be used as a second stop watch. To clear the dis-
play,
press the ENTER key switch again.
ALARM SETTING
The alarm can be set with the TIME SET key.Clear
the display, by pressing the ENTER key, then press
the TIME SET key twice.
appears on the display indicating that
two minutes was set. Next, press the ENTER key
once to memorize this two minutes. The display
changes to and is memorized. Start the
timer by pressing the ENTER key. The display
changes every second. When the display reaches
, the timer keeps ten times, every once
the power is turned off or reset. If the timer is
started without setting the time after the display
has been cleared, the previously set alarm time
remains effective. An
arbitrary alarm time up to
59 minutescanbe set.
3 DOWN TIMER
Set the tachometer/timer POWER switch to ON
and press the MODE SEL key twice.
appears on the display to
indicate that
14
a second, to indicate that two minutes have
elapsed. Thereafter the timer continues to count
up to 60 minutes. If the TIME SET key is pressed
and held for two seconds or longer when memo-
rizing the alarm time, the time is set in five minute
steps and the set alarm times are memorized until
the DOWN TIMER mode was selected. Next,
press the ENTER key. The timer keeps.
appears on the display, and the display begins to
count down every second. The timer keeps every
second from 10 seconds before the end of the
count-down, the same as the UP TIMER.
TIME AND ALARM SETTING
Set the time and alarm with the TIME SET key,
the same as the UP TIMER. To set the alarm to
at the display, clear the display by
pressing the ENTER key, then press the TIME
SET key three times. Next, memorize this time
by pressing the ENTER key again. The display
begins to count down in seconds. When the dis-
play begins to count down in seconds. When the
display reaches , the timer begins to
keep every second to indicate that three minutes
have elapsed. If the TIME SET key is pressed
and held for two or more seconds, the time is set
in five minute steps, the same as the UP COUN-
TER, and the alarm can be set to any desired
time up to 33 minutes.
4 INTEGRATING TIMER
Set the tachometer/timer POWER switch and the
transmitter power switch to ON. The blinks,
counting begins, and the elapsed time is displayed
in minutes. For example indicates that
three minutes have elapsed. If the transmitter
power switch is set to OFF, counting stops. When
the transmitter power switch is turned back on,
counting continues. The integrating timer func-
tion can be started and stopped as long as the
tachometer/timer POWER switch is on even if
another mode is selected with the MODE.SEL
key. This can be used to monitor the transmitter
operating time. If the ENTER key is pressed in
the INTEGRATING TIMER mode, the old in-
tegrating time is cleared and a new count begins.
This can be used to forecast the remaining Nicd
battery capacity and other applications.

•RECEIVER AND SERVOS
Receiver, Servo Switch, and
BatteryConnections
Fig. 15
NR-4J
Charging plug
Power switch
SWH-5 (R4-SWJ)
Pitch
control
servo
1
5
Spoiler
servo
Flap servo
Landing gear servo
Landing gear servo
AEC-A
Landing gear adaptor
PCM receiver
FP-R118GP
Extension cord
AEC-3
Antenna wire
Rudder servo
Throttle servo
Elevator servo
Aileron servo
Pay careful attention to the polarity
of the connector.
8SSAP 4 Servos
PCM RECEIVER FP-R118GP
crystal
Fig. 17
Error lamp
•This LED comes on when the
receiver operated erroneously.
• When the receiver and servo side
Nicd is connected and this LED
is on, radiowaves are not being
received from the transmitter,
check to be sure the frequency
is correct. Checking is possible
by the lamp being on.
•When strong noise has
been
received, or the radiowaves from
the transmitter are intermittent-
ly interrupted,thislamp will blink.
This is usually not a problem.
Remove the receiver
crystal by pulling it in
this direction.
Receiver crystal
Fig. 18
Antenna
wire

ADJUSTMENTS ANDFLIGHT TECHNIQUES
•BASICLINKAGESANDINSTALLATION
The FP-8SSAP has a servo reversing switch and ATV (Adjustable Travel Volume) for
each channel. Mount the servos without regard to their direction. Select and link servo
horns somewhat larger than those specified by the model manufacturer.
• Install the servos securely. Tighten the mounting
screws until the rubber grommets are slightly
compressed. Note: If the screws are too tight,
the vibration dampening effect of the grommets
will be lost.
• Use extension cords as needed.
• It is suggested that a separate servo be used on
each aileron as this will allow use of the versatile
mixing and differential functions built into the
transmitter. Retractable landing gear can be
operated
with a single servo to save weight or
with two servos to simplify the mechanical link-
age as desired.
•Connect the pushrod to each servo horn, then
check to see if the direction of travel in relation
to stick movement is correct. If the direction of
travel is reversed, use the servo reversing switches
to correct.
•When installing the switch harness, cut a retangu-.
lar hole slightly larger that the full stroke of the
ON/OFF switch and install the switch so that it
operates smoothly. It is best to install the switch
inside the fuselage and attach a piece of wire to
the switch so that it can be operated from out-
side
the aircraft. Locate the switch where it will
not be exposed to engine oil, dust, etc.
•Wrap the receiver in soft foam rubber. Water-
and dustproof the receiver by placing it in a
plastic bag and tying the mouth of the bag with
a rubber band. Do the same with the airborne
battery pack. Caution: The foam rubber should
be loosely wrapped and not compressed. This
will provide maximum protection from vibra-
tion.
• Use the rubber bands wrapped around the re-
ceiver to hold the servo and switch leads.
• Even though the receiver antenna may appear to
be too long, do not shorten it or fold it back.
• Be alert for possible electrical noise.
This system has noise rejection circuits, however
noiselessparts are recommended.
•Operate each servo to its full throw and check
for slop or binding in the linkage. Unreasonable
force applied to the servo horns can damage the
servo or horns and will greatly shorten battery
life. Adjust linkages and servo horns so that the
servos move smoothly even when the trim lever
and stick are operated simultaneously in the
same direction.
• After installation is complete, recheck each part,
then perform a range check by collapsing the
transmitter antenna and extending the receiver
antenna to its full length. Operate the transmit-
ter at a distance of 60 to 90 feet from the receiv-
er. The servos should operate normally at this
distance.
16
Normal 8 channel use (mixing and other functions not used).
Set the switches on the trimmer panel at the back
of the transmitter as shown below. The switches
are set as shown in Fig. 19. Connect the aileron
servo to CH1, elevator servo to CH2, throttle servo
to CH3, rudder servo to CH4, landing gear servo to
CH5, flap servo to CH6, spoiler servo to CH7, and
the pitch control servo to CH8.
Fig. 19
Set the DIFF
trimmer 1 5
to the INHB
(counterclock
wise).
DIFF trimmer setto INHB Counterclockwise.
Note: Monitor Lamps (B), (C), and (D) do not
come on at this time. Check if the direction of
operation of each servo is correct under this state.
If the direction of operation of a servo is incorrect,
reverse the position of the corresponding servo
reversing switch [38] to [45]. Next, set the 2ND
ATV trimmers on aileron and elevator to the
desired deflection angles on the aircraft. The
deflection angle decreases when the 2ND ATV
trimmer is turned counterclockwise. Throttle con-
trol can be adjusted with the ATL trim lever 19 .
This completes the settings for basic 8 channel
use.

ADJUSTMENTS AND FLIGHT TECHNIQUES
•USING ATV (ADJUSTABLE TRAVEL VOLUME)
GENERAL - ATV (Adjustable Travel Volume)
allows independent adjustment of servo maximum
throw in each direction (without affecting the
neutral position). This is also sometimes referred
to as "separate endpoint adjustment". ATV is very
convenient when for example: a model requires
more DOWN elevator deflection than UP for equal
inside and outside loops (with equal control stick
deflection). Other aircraft may require slightly
different RIGHT or LEFT aileron or rudder
deflection to give equal response in each direction
(due to engine torque, precision of the model,
etc.). Two different ATV functions are possible
with this system. Memory (Pushbutton) ATV and
2ND ATV.
MEMORY (PUSHBUTTON) ATV
This type of ATV is available on all eight channels.
Servo travel is adjusted as outlined in the example
below.
NOTE: Memory ATV settings are retained in the
transmitter memory circuit even when the power
switch is turned OFF. They are lost however, if
the transmitter
Nicd battery nears full discharge or
is removed for servicing.
ATV SETTING
Switch switches S [
49] and R[48]
Press button [46] or [47] while holding the aileron
stick in the full position.
Fig. 20
MEMORY (PUSHBUTTON) ATV - (Aileron CH1
used as example)
1. First, set Function Select Switch [49] to ATV
position.
2.SetChannel Select Switch [48]
to 1 (Ail.).
3.Set the transmitter and receiver power switches
ON and check for proper servo operation.
4.Move the Aileron stick to full RIGHT aileron,
hold it in that position, and set servo movement
to the desired Right aileron deflection angle by
pressing Button 46 or 47].
5.Repeat Step 4 for LEFT aileron.
6. For other channels, select the channel with
switch 48 and adjust ATV as desired.
7. When all adjustments are completed, set the
Function Select and Channel Select switches
([48] and [49) to OFF.
8. To clear the ATV settings on all channels, set
the Function Select switch [49] to RESET and
Channel Select switch [48] to POSITION 2 (Pos.
2= ATV when [49] is on RESET) and press
Buttons 46 and [47] simultaneously. ATV is
cleared on ALL CHANNELS and servos will
move to 100% of their maximum throw.
9. If only one channel is to be cleared or changed,
simply repeat Steps I through 5 with Chan-
nel Select Switch [48] set to the appropriate
channel.
1
7
ATV/FS BUTTON
•These two pushbutton switches are used for servo deflection angle setting of ATV. FS or HOLD func-
tion, servo test start & stop; reset; battery FS memory set, etc.
——————————————————————[46] This pushbutton switch is used when:
1 Making the ATV servo deflection angle larger.
2 Turning the FS function on.
3 Starting the servo test.
[47] This pushbutton switch is used when:
1 Making the ATV servo deflection angle smaller.
2 Turning the HOLD function on.
3 Stopping the servo test.
When button [46] and [47] are pressed at the same
time, reset or battery FS memory setting is pos-
sible. At this time, lamp A of memory lamps 22
goes out momentarily so that setting can be moni-
tored.
Fig. 21

ADJUSTMENTS AND FLIGHT TECHNIQUES
CHANNEL SELECT SWITCH
• This switch 48 selects the channel when setting
FS and HOLD functions. It also acts as the chan-
nel select switch for SERVO TEST function.
When switch 49 is set to RESET, the Channel
Select switch is used to designate the function
(ATV, FS, BFS memory, or ALL) to be cleared
by Buttons [46] and [47]. Note that the positions
on switch 48 have a different meaning when
the Function Select Switch is set on RESET.
This is summarized in the table below:
[48] Channel select switch
(48] Relationship among channel select switch
number, servo and reset.
No.
1.
2.
3.
4.
5.
6.
7.
8.
RESET &
TEST ALL
OFF
Atswitch[49]FSSELECT,
ATV.TESTA.B
Aileron
Elevator
Throttle
Rudder
Channel 5switch (landing
gear)
Flaps
Channel7knob(spoiler)
Channel 8 lever (variable
pitch)
All the servos are
operated at servo
test.
Usually set to this OFF position.
Atswitch[49]
RESET
FS (fail safe)
ATV
BFSmemory
FS, ATV, and BFS
memory are reset
simultaneously.
FUNCTION SELECT SWITCH
• This switch selects the function to be set (ATV,
FS, BFS memory) or test (A or B) to be per-
formed. It is also used in the RESET position to
clear ATV, FS, and BFS memory (in conjunction
with [46], [47], and 48). Note: In RESET posi-
tion, the Channel Select Switch 48 is used to
designate the function(s) to be cleared.
[49] Function select switch
Fig. 23
• Normally set it to OFF.
1.FS ALL
Switch to this position when setting fail safe
for all channels, FS is described in the "HOW
TO USE FS" section.
2.FS SELECT
This position allows setting of fail safe and
hold as described in the "HOW TO USE
FS" section.
3.ATV
This position allows setting ATV as describ-
ed in the "HOW TO USE ATV" section.
4.TEST A
This position allows servo test A as described
in the "SERVO TEST" section.
5.TESTB
This position allows servo test B as described
in the "SERVO TEST" section.
6.BFS MEMO SET
Switch to this position when setting the BFS
release point as described in the "BATTERY
FS MEMORY SETTING" section.
7.OFF
Normally set to this position.
18