HobbyZone Sport Cub S 2 User manual

Sport Cub S 2
Instruction Manual
Bedienungsanleitung
Manuel d’utilisation
Manuale di Istruzioni

EN
Sport Cub S 2
2
®
NOTICE
All instructions, warranties and other collateral documents are subject to change at the sole discretion
of Horizon Hobby, LLC. For up-to-date product literature, visit horizonhobby.com or towerhobbies.com
and click on the support or resources tab for this product.
Meaning of Special Language:
The following terms are used throughout the product literature to indicate various levels of potential
harm when operating this product:
WARNING: Procedures, which if not properly followed, create the probability of property damage,
collateral damage, and serious injury OR create a high probability of superficial injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical property
damage AND a possibility of serious injury.
NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage
AND little or no possibility of injury.
WARNING: Read the ENTIRE instruction manual to become familiar with the features of the
product before operating. Failure to operate the product correctly can result in damage to the
product, personal property and cause serious injury.
This is a sophisticated hobby product. It must be operated with caution and common sense and requires
some basic mechanical ability. Failure to operate this product in a safe and responsible manner could
result in injury or damage to the product or other property. This product is not intended for use by
children without direct adult supervision. Do not use with incompatible components or alter this product
in any way outside of the instructions provided by Horizon Hobby, LLC. This manual contains instructions
for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings
in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or
serious injury.
Age Recommendation: Not for children under 14 years. This is not a toy.
Safety Precautions and Warnings
• Always keep a safe distance in all directions
around your model to avoid collisions or injury.
This model is controlled by a radio signal subject
to interference from many sources outside your
control. Interference can cause momentary loss
of control.
• Always operate your model in open spaces away
from full-size vehicles, traffic and people.
• Always carefully follow the directions and
warnings for this and any optional support equip-
ment (chargers, rechargeable battery packs,
etc.).
• Always keep all chemicals, small parts and
anything electrical out of the reach of children.
• Always avoid water exposure to all equipment
not specifically designed and protected for this
purpose. Moisture causes damage to electronics.
• Never place any portion of the model in your
mouth as it could cause serious injury or
even death.
• Never operate your model with low transmitter
batteries.
• Always keep aircraft in sight and under control.
• Always use fully charged batteries.
• Always keep the transmitter powered on while
aircraft is powered.
• Always remove batteries before disassembly.
• Always keep moving parts clean.
• Always keep parts dry.
• Always let parts cool after use before touching.
• Always remove batteries after use.
• Always ensure failsafe is properly set
before flying.
• Never operate aircraft with damaged wiring.
• Never touch moving parts.

Sport Cub S 2
EN
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Included in the Box
Flying Tips
Preflight Checklist
• Consult local laws and ordinances before
choosing a location to fly your aircraft.
• Sensor Assisted Flight Envelope (SAFE
®
)
technology is designed as flight assistance,
not an autopilot. The pilot is always in control
and required to fly the aircraft at all times.
• Start in Beginner mode (SAFE switch position
0). As you learn and become more confident,
change modes to advance your flying skills.
• Always make deliberate and steady control
stick movements for smooth control of your
aircraft.
• Fly your aircraft outside in no greater than
light winds.
• For indoor flight, fly the aircraft inside in a
large gymnasium.
• Keep your aircraft in plain sight and up wind.
• Always avoid flying near houses, trees, wires
and buildings.
• Always avoid flying in areas where there
are many people, such as busy parks,
schoolyards or soccer fields.

6. Perform SAFE Control Direction Test.
7. Plan flight for flying field conditions.
8. Set a flight timer for 5 minutes.
9. Have fun!

1. Find a safe and open area.
2. Set up your transmitter to support SAFE
technology (BNF only).
3. Charge flight battery.
4. Install flight battery in aircraft.
5. Perform Control Direction Test.
300 feet
(91 m)
Stand
Fly in this area
(upwind of pilot)
here
USB Charger Ultra Micro Sport Cub S 2
SPMA3178
Transmitter
150 mAh 3.7V
(RTF Only)
SPMRMLP6
(RTF Only)
Li-Po Battery AA Alkaline Batteries
EFLB1501S25
(4) (RTF Only)

EN
Sport Cub S 2
4
®
Switch
Transmitter
Low Battery Alarm
When the battery voltage drops too
low, an alarm sounds and the LED
Mode 2 shown
Power LED
Power
flashes. The batteries must be replaced
immediately. If this happens while flying,
land your aircraft as soon and as safely
as possible.
Throttle
Trim Up
Throttle /
Rudder
Bind
Rudder
Trim left
Elevator
Elevator Trim
Down
Ailerons /
Elevators
Dual
Rate
Button
Aileron
Trim Right
Bind /
Panic
Recovery
Trigger
Flight
Mode
Switch
Rudder
Trim Right
Throttle
Trim Down
Trim Up
Aileron
Trim Left
Battery Door
Transmitter Batteries Installation
Remove the battery cover. Install the four
included batteries (noting proper polarity)
and reinstall the battery cover.
Button

Sport Cub S 2
EN
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LED Indicator
The transmitter LED gives a
visual representation for various
data. The following table gives an
explanation of the possible LED
indications.
* To take advantage of the telem-
etry features, the transmitter
must be bound to a receiver
that is telemetry capable. See
your aircraft manual for more
information.
Status
Transmitter LED/Buzzer Indication
Transmitter voltage
Transmitter LED color indicates transmitter battery
voltage for 4 seconds after powering on.
Green: over 5.6V
Yellow: between 4.8V and 5.6V
Red: < 4.8V, transmitter beeps (change the
batteries)
Aircraft voltage*
(the aircraft must
be bound and
include a telemetry
capable receiver)
Transmitter LED color indicates aircraft on-board
battery voltage. When using MLP6 with aircraft
that does not transmit telemetry, LED will be solid
blue.
Green: over 3.7V per cell
Yellow: between 3.3V and 3.7V per cell
Red: below 3.3V per cell
Control rate
High rate: LED solid
Low rate: LED flashes slowly
Binding
LED flashes blue rapidly
No signal
LED glows solid blue

EN
Sport Cub S 2
6
®
Transmitter Setup
IMPORTANT: The installed receiver has been pro-
grammed for operation specifically inthis aircraft.
To operate the SAFE system in this aircraft, set up
your optional DSM2/DSMX transmitter using the
chart below.
• SAFE Flight mode is selected using Channel 5
signal (high, middle, low)
• Panic Recovery mode is selected with Channel
6 signal (high, low)
IMPORTANT: A transmitter with a 2-position
position 0 or position 2 flight modes. If possible
assign Channel 5 inyour transmitter to a
3-position switch to operate all 3 flight modes
(refer to your transmitter manual).
Refer to your transmitter’s manual for more information about transmitter setup.
Computerized Transmitter Setup (DX6i, DX6, DX7S, DX8, DX9, DX10t and DX18)
Start all transmitter programming with a blank model (do a model reset), then name the model.
Set Dual
Rates to:
HIGH 100%
LOW 70%
DX6i
1. Go to the SETUP LIST MENU
2. Set MODELTYPE: ACRO
3. Set REVERSE: Gear Channel
4. Go to ADJUST LIST MENU
5. Set TRAVEL ADJ: Gear/Fmode (0)🠉100%; Gear/Fmode (1)🠉40%
6. Set FLAPS: Norm 🠉100; LAND 🠉100
7. Set MIX 1: ACT; Gear 🠉Gear ACT, RATE D 0%; U + 100%, SW MIX, TRIM INH
Resulting
in:
The Gear and Mix switches operate the 3 SAFE modes
Gear 0; Mix 0 = Beginner Mode
Gear 1; Mix 0 = Intermediate Mode
Gear 1; Mix 1 = Experienced Mode
The Flap switch operates Panic Recovery.
Position 0, Panic Recovery off, Position 1 Panic Recovery on
DX7S
DX8
1. Go to the SYSTEM SETUP
2. Set MODEL TYPE: AIRPLANE
3. Set SWITCH SELECT: Change all to INH then TRAINER: AUX1, FLAP: GEAR
4. Go to the FUNCTION LIST
5. Set SERVO SETUP: Reverse AUX1
Resulting
in:
Flap/Gyro Switch operates the 3 SAFE modes (0 Beginner/1 Intermediate/
2 Experienced) The Trainer/Bind button operates Panic Recovery
DX6
DX9
DX10t
DX18
1. Go to the SYSTEM SETUP
2. Set MODEL TYPE: AIRPLANE
3. Go to CHANNEL ASSIGN: click NEXT to go to Channel Input Config: Set GEAR: D
(DX10t: GEAR: A) Set AUX1: i (DX10t: AUX1: R-tip)
4. Go to the FUNCTION LIST
5. Set SERVO SETUP: Reverse AUX1
Resulting
in:
Switch D (DX10t: A) operates the 3 SAFE modes (0 beginner/1 intermediate/
2 Experienced) The Bind/I button (DX10t: R-tip) operates Panic Recovery
Channel 5 switch will only allow the use of
Non Computerized Transmitter Setup
(DX4e and DX5e)
Transmitter
SAFE
Mode
Switch
Panic
Recovery
Switch
SAFE
Flight
Modes
Supported
Throttle, Aileron, Elevator and Rudder in Normal Position
DX4e
(2pos switch)
ACT/AUX
switch
Trainer Button
2 Pos
Flight Mode
DX4e
(3pos switch)
CH 5
switch
Trainer Button
3 Pos
Flight Mode
DX5e
(2pos switch)
CH 5
switch
Trainer Switch
2 Pos
Flight Mode
DX5e
(3pos switch)
CH 5
switch
Trainer Switch
3 Pos
Flight Mode

Sport Cub S 2
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Pitch
Roll
SAFE
®
Technology Flight Modes
Beginner Mode (with self leveling)
Pitch (nose up and down) and Roll (wing tips
up and down) angles are limited to help you
keep the aircraft airborne. Release both sticks
for self-leveling.
Beginner Mode
(Switch Position 0)
Intermediate Mode
The pilot is only prevented from entering
extreme flight conditions.
Experienced Mode
Unlimited Flight Envelope
Panic Recovery Mode
If you feel you have lost control in any mode,
hold the Panic Recovery trigger. The SAFE
technology will return the aircraft to a stable
attitude (wings level with a slight climb).
Always fly at a safe altitude, as Panic Recovery
may cause the aircraft to lose some altitude
when leveling the wings. Release the Panic
Recovery trigger to turn off Panic mode and
return to the current SAFE fight mode.
Intermediate Mode
(Switch Position 1)
Experienced Mode
(Switch Position 2)
Pitch
Pitch
Roll
Roll
NOTICE: If the aircraft is upside down when the Panic
Recovery trigger is pressed, sufficient altitude is required
for the aircraft to return to straight and level flight.
1
2
0

EN
Sport Cub S 2
8
®
Charging Warnings
The included USB charger has been designed to
safely charge the included Li-Po battery.
• By handling, charging or using the included Li-Po
battery, you assume all risks associated with
lithium batteries.
• If at any time the battery begins to balloon or
swell, discontinue use immediately. If charging
or discharging, discontinue and disconnect.
Continuing to use, charge or discharge a battery
that is ballooning or swelling can result in fire.
• Always store the battery at room temperature in a
dry area for best results.
• Always transport or temporarily store the battery
in a temperature range of 40–120° F. Do not store
the battery or model in a car or direct sunlight. If
stored in a hot car, the battery can be damaged or
even catch fire.
• Always charge batteries away from flammable
materials.
• Always inspect the battery before charging.
Charging the Flight Battery
• Always disconnect the battery after charging, and
let the charger cool between charges.
• Always constantly monitor the temperature of the
battery pack while charging.
• ONLY USE A CHARGER SPECIFICALLY DESIGNED
TO CHARGE LI-PO BATTERIES. Failure to charge
the battery with a compatible charger may cause
a fire resulting in personal injury and/or property
damage.
• Never discharge Li-Po cells to below 3V under
load.
• Never cover warning labels with hook and loop
strips.
• Never leave charging batteries unattended.
• Never charge batteries outside recommended
levels.
• Never charge damaged batteries.
• Never attempt to dismantle or alter the charger.
• Never allow minors to charge battery packs.
• Never charge batteries in extremely hot or cold
places (recommended between 40–120° F or 5–
49° C) or place in direct sunlight.
1. Insert the charger into a USB port.
2. Properly connect the battery to the charger.
Charging a fully discharged (not over-discharged)
150 mAh battery takes approximately 45 minutes.
The LED goes out when the charge is complete.
Comple te
DC In p u t: 5. 0 V 350m A
DCOutput:4.2V 300mA E FLC1008
S O LI D R E D LE D
–Charging
L E D OF F
–Charge
USB Li-Po
Charger
CAUTION: Once charging is complete,
immediately remove the battery. Never
leave a battery connected to the charger.
CAUTION: All instructions and warnings
must be followed exactly. Mishandling of
Li-Po batteries can result in a fire, personal injury
and/or property damage.
45
MIN.
S O LI D R E D LE D
–Charging
USB Li-Po
LE D OF F
Charger
–Charge
C o m pl et e
DC In p u t: 5. 0V 35 0 m A
DCOutput:4.2V 300mA EFLC1008
SOLID RED LED
–Charging
U SB Li -Po LEDOFF
Charger –Charge
Complete
DC I n pu t : 5 .0V 35 0 mA
DC Ou t pu t : 4. 2V 3 0 0mA
E F L C 1 0 0 8
CHARGING (Solid Red) .........................
MAX CHARGE (Off) .............................

Sport Cub S 2
EN
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BNF | RTF
Binding
For a list of compatible DSM2/DSMX transmitters,
please visit www.bindnfly.com.
CAUTION: When using a Futaba
®
transmitter with a Spektrum DSM
module, you must reverse the throttle channel
and rebind. Refer to your Spektrum module
manual for binding and failsafe instructions.
Refer to your Futaba transmitter manual for
instructions on reversing the throttle channel.
Installing the Flight Battery
Your Sport Cub RTF transmitter comes pre-bound to the aircraft, so
binding should not be necessary.
Keep the aircraft and transmitter away from large metal objects, wire-
1
less sources or other transmitters while installing the battery.
2
Binding Procedure
1. Refer to your transmitter’s unique instructions
forbindingto a receiver.
2. Make sure the flight battery is disconnected
from the aircraft.
3. Ensure the transmitter is powered OFF.
4. Connect the flight battery to the aircraft and
turn the aircraft upright. The receiver LED will
begin to flash (typically after 5 seconds).
5. Make sure the transmitter controls are at
neutral and the throttle is in the low position.
6. Put your transmitter into bind mode.
7. After 5 to 10 seconds, the receiver status LED
will become solid, indicating that the receiver
is bound to the transmitter. If the LED does not
turn solid, refer to the Troubleshooting Guide at
the end ofthe manual.
8. Disconnect the flight battery and power the
transmitter off.
For subsequent flights, power ON the transmitter
for 5 seconds before connecting the flight battery.
CAUTION: Always disconnect the Li-Po flight battery from the
aircraft receiver when not flying toavoid over-discharging the
battery. Batteries discharged to a voltage lower than the lowest ap-
proved voltage may become damaged, resulting in loss of perfor-
mance and potential fire when batteries are charged.
CAUTION: Always keep hands away from the propeller. When
armed, the motor will turn the propeller in response to any
throttle movement.
Place aircraft on its
landing gear.
Keep immobile and
out of the wind for
5 seconds.
5
Sec.
For best flight
performance,
install the
battery all the
way back as
shown.

EN
Sport Cub S 2
10
®
Control Direction Test
1. Place the aircraft into Experienced mode (Mode
switch position 2).
2. Face the aircraft away from you.
3. Restrain the aircraft so it does not escape your
control while you are testing your transmitter
controls.
4. Move the sticks on the transmitter toensure the
aircraft responds as shown.
5. If the aircraft responds as shown, move the SAFE
®
mode switch to Beginner mode (Position 0) to
prepare to fly.
Refer to the Binding instructions and Troubleshooting
Guide in this manual for more information. If you need
more assistance, contact the appropriate Horizon
Hobby Product Support department.
Experienced Mode
(Switch Position 2)
Mode 2 shown
1
2
0
Up Elevator (climb)
Down Elevator (descend)
Rudder Left
Rudder Right
Aileron Left
Aileron Right

Sport Cub S 2
EN
1
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BNF | RTF
SAFE
®
Control Direction Test
Perform the Control Direction Test to
to your transmitter. Once you are
sure the aircraft responds correctly,
move the aircraft as shown to ensure
the SAFE system moves the control
surfaces in their proper direction. If
the control surfaces do not respond
as shown, do not fly the aircraft.
Contact Horizon Hobby Product
Support.
The SAFE system will not activate
until the throttle stick or trim is
increased for the first time after the
flight battery is connected. Once the
SAFE is active, the control surfaces
may move rapidly on the aircraft. This
is normal. SAFE will remain active
until the battery is disconnected.
ensure the aircraft responds correctly
Aircraft
SAFE Reaction
Movement
Elevator
Aileron
Rudder

EN
Sport Cub S 2
12
®
Takeoff
Hand Launch
Use the Beginner mode for takeoff in first flights.
Get help to hand launch your aircraft so you
can concentrate on flying. If you must hand
launch the aircraft alone, hold the Aircraft in your
dominant hand and the transmitter in your other
hand.
Wind 0–5 mph
(0–8km/h)
Climbs at 100%
throttle.
100%
Ground Launch
• Take off from a hard and level runway.
• Use the rudder control to keep the aircraft
rolling straight.
• Turn the aircraft only after it is high off the
ground.
Gently pull back on
the elevator stick
to lift off of the
ground.
Wind 0–5 mph
(0–8km/h)
100%

Sport Cub S 2
EN
1
3
BNF | RTF
Flying
In Beginner mode, when properly trimmed, your
aircraft will climb at full throttle without use of
the elevator stick.
• Set a flight timer for 6 minutes.
• If the motor pulses, land the aircraft
immediately and recharge the flight battery.
• Flying with the nose pointed toward you is
one of the hardest things to do when learning
to fly. To practice piloting the aircraft, try
flying in large circles high off the ground.
Adjusting Trim in Flight
Familiarize yourself with your transmitter’s
controls and the aircraft’s response before
flying by performing the recommended Control
Direction Test. Press the trim buttons on your
transmitter to adjust how the aircraft flies.
If the aircraft’s nose drifts while the sticks are
at neutral (centered) and the throttle is at 50%,
press the trim buttons:
• Upper button to stop up drift
• Lower button to stop down drift
• Left button to stop right drift
• Right button to stop left drift
• Left button to stop right roll
• Right button to stop left roll
If you press a trim button until no beep sounds
and the aircraft does not fly straight and level,
land and manually adjust the trim as described
below.
Manually Adjusting Trim
Press the trim buttons toreturn to center (3
D
beeps will sound), then use a pair of pliers to
carefully bend the metal U-Bend:
Only adjust elevator to neutral position
immediately after powering on and before SAFE
has been activated by advancing the throttle.
• Narrow for negative adjustment
(Down elevator/aileron or rudder left)
• Widen for positive adjustment
(Up elevator/aileron or rudder right)
Throttle Stick
Direction of Drift
Button to Correct

14
®
After Flying
1. Lower the throttle stick completely and do
not move the steering stick. Wait at least 5
seconds.
2. Disconnect and remove the battery from the
aircraft. Keep hands away from the propeller.
3. Power off the transmitter.
4. Fully charge the aircraft battery.
5. Remove the battery after charging is complete.
Repairs
Repair this aircraft using foam-compatible
CA(cyanoacrylate adhesive) glue or clear tape.
Only use foam-compatible CA glue as other types
of glue can damage the foam. When parts are
not repairable, see the Replacement Parts List for
ordering byitem number.
For a listing of all replacement and optional parts,
refer to the list at the back of this manual.
Settings for Control Horns
The illustration shows factory settings for linkages
on the control horns. After flying, if you want to
modify control throw, carefully adjust the linkage
positions for desired control response.
SOLI D RE D LED
–Charging
Li-Po LED O F F
ger Comple te
–Charge
5. 0 V 35 0m A
4.2V 300mA EFLC1008
USB
Char
DC Input :
DC Out pu t:
NOTICE: Use of foam-compatible CA acceler-
ant on your aircraft can damage paint. DO NOT
handle the aircraft until the accelerant fully dries.
EN
Landing
Sport Cub S 2
Wind 0–5 mph
Fly to your runway, keeping the aircraft pointed
(0–8km/h)
into the wind and the wings level. Bring the
aircraft down by lowering the throttle to 25%.
Near the ground, fully lower the throttle and pull
back on the steering stick.
CAUTION: Never catch a flying aircraft
in your hands. Doing so could cause
personal injury and damage to the aircraft.
45
MIN.
Rudder Elevator Aileron
NOTICE: When you are finished flying, never
leave the aircraft in direct sunlight or in a hot,
enclosed area such as a car. Doing so can
damage the foam.
NOTICE: Always disconnect the battery from the
aircraft before powering off the transmitter or
injury and damage may result.

15
BNF | RTF
Sport Cub S 2
EN
A
B
E
D
C
Motor Service
Disassembly
1. Disconnect the battery from the ESC/receiver.
2. Carefully cut the tape and decals on the side of
the fuselage and behind the canopy to remove
the top of the fuselage.
IMPORTANT: Removing tape or decals can remove
paint from the fuselage.
3. Hold the prop shaft using needle-nose pliers or
hemostats.
4. Turn the propeller counterclockwise (facing the
front of the model) to remove. Turn the propeller
clockwise to install.
5. Carefully remove the damaged spinner and glue
from the propeller.
6. Hold the nut ( A ) on the end of the prop shaft
using needle-nose pliers or hemostats.
7. Turn the gear on the shaft clockwise (facing the
front of the model) to remove the nut.
8. Gently pull the shaft ( B ) from the gearbox
( C ) and make sure the washer ( D ) and two
bushings ( E ) are not lost.
9. Disconnect the motor from the ESC/receiver.
10. Gently push the motor out of the gearbox
and remove the motor through the top of the
fuselage behind the ESC/receiver.
Assembly
Assemble the aircraft using the instructions above
in reverse order.
• Correctly align the prop shaft gear with the
pinion gear on the motor.
• Connect the motor to the ESC/receiver so
that the powered motor turns the propeller
counterclockwise (facing the front of the model).
• Make sure the propeller size numbers (130 x 70)
face away from the motor (see illustration).
• Attach the spinner to the propeller using foam-
compatible CA (Cyanoacrylate adhesive).
• Assemble the fuselage using clear tape.
CAUTION: DO NOT handle propeller parts
while the flight battery is connected.
Personal injury could result.
NOTICE: DO NOT remove the gearbox from the
aircraft. Damage to the aircraft will result.

EN
Sport Cub S 2
16
®
Optional Floats
To fly this aircraft off water, install the optional
E-flite
®
Float Set (EFLUA1190, sold separately).
A rear float mount is included with the aircraft. Install
it inthe openslot onthe bottom of the fuselage using
foam-compatible CA. Refer to the float manual for
installation instructions.
Taking Off on Water
To take off on water, steer with the rudder and slowly
increase the throttle.
Keep the wings level on takeoff. Hold a small amount
(1/4–1/3) of up elevator and the aircraft will lift off
once flying speed is reached. Avoid rapidly increasing
the throttle, as torque from the motor may cause the
aircraft to roll to the left when on water.
Landing on Water
To land on water, fly the aircraft to a couple of feet off
the surface of the water. Reduce throttle and add up
elevator toflare the aircraft.
When taxiing, you must use some throttle to create
propeller blast over the rudder to steer, as there is no
water rudder.
Avoid taxiing cross wind if there is a breeze, as this
can cause the aircraft to flip over if the wind gets
under the upwind wing. Taxi 45 degrees into the
direction of the wind (not perpendicular tothe wind)
and use aileron to hold the upwind wing down.
The aircraft will try to face into the wind when
taxiing. The wind naturally turns the aircraft to face
into the wind.
Float Set Not Included
Part # EFLUA1190, sold separately

Sport Cub S 2
EN
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BNF | RTF
Re-Binding the RTF Transmitter
Your Sport Cub RTF transmitter comes pre-bound to the aircraft. If you need to re-bind your aircraft,
follow this binding table.
Binding Procedure
1. Make sure the flight battery is disconnected from the aircraft.
4
2. Ensure the transmitter is powered OFF.
3. Connect the flight battery to the aircraft and turn the aircraft upright.
The receiver LED will begin to flash (typically after 5 seconds).
4. Make sure the transmitter controls are at neutral and the throttle is in the
low position.
5
5. Put the transmitter into bind mode by pushing the left control stick
vertically into the case (until it clicks) while powering ON the transmitter.
Release the transmitter stick.
6. After 5 to 10 seconds, the receiver status LED will become solid, indicat-
ing that the receiver is bound to the transmitter. If the LED does not turn
solid, refer to the Troubleshooting Guide at the end of the manual.
7. Disconnect the flight battery and power the transmitter off.
Troubleshooting Guide (SAFE)
Problem
Possible Cause
Solution
Control surfaces not at
neutral position when
transmitter controls are
at neutral
Control surfaces may not have been
mechanically centered from factory
Center control surfaces mechanically
by adjusting the U-bends on control
linkages
Aircraft was moved after the flight
battery was connected and before
sensors initialized
Keep the Aircraft upright and immobile
for 5 seconds after connecting the
battery
Aircraft flies inconsistently
from flight toflight
Trims are moved too far from neutral
position
Neutralize trims and mechanically adjust
linkages to center control surfaces
Controls oscillate in flight,
(Aircraft rapidly jumps or
moves)
Propeller is unbalanced, causing
excessive vibration
Remove propeller and rebalance or
replace it if damaged
Nut on prop shaft is too loose,
causing excessive vibration
Tighten the prop shaft nut 1/2 turn
Aircraft does not connect
to transmitter after battery
is connected
Aircraft is not upright and immobile
after battery is connected
Keep the Aircraft upright and immobile
for 5 seconds after connecting the
battery
Troubleshooting Guide
Problem
Possible Cause
Solution
Aircraft will
not respond
to throttle but
responds to
other controls
Throttle stick and/or throttle trim is
too high
Reset controls with throttle stick and throttle
trim atlowest setting
Throttle channel is reversed
Reverse throttle channel on transmitter
Motor is disconnected from receiver
Open fuselage and ensure the plug for the
motor is properly installed
Extra propeller
noise or extra
vibration
Damaged propeller, prop shaft or
motor
Replace damaged parts
Nut on prop shaft is too loose
Tighten the prop shaft nut 1/2 turn

EN
Sport Cub S 2
18
®
Problem
Possible Cause
Solution
Reduced flight
time or aircraft
underpowered
Flight battery charge is low
Completely recharge flight battery
Propeller is installed backwards
Install propeller with numbers facing forward
Flight battery is damaged
Replace flight battery and follow flight battery
instructions
Flight conditions may be too cold
Make sure battery iswarm before use
Battery capacity is too low for flight
conditions
Replace battery or use a larger capacity
battery
LED on receiver
flashes rapidly
and aircraft
will not bind
to transmitter
(during binding)
Transmitter is too near aircraft during
binding process
Power off transmitter, move transmitter a
larger distance from aircraft, disconnect and
reconnect flight battery to aircraft and follow
binding instructions
Bind switch or button was not held
while transmitter was powered on
Power off transmitter and repeat bind process
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Move aircraft and transmitter to another
location and attempt binding again
LED on receiver
flashes rapidly
and aircraft will
not respond to
transmitter (after
binding)
Less than a 5-second wait between
first powering on transmitter and
connecting flight battery to aircraft
Leaving transmitter on, disconnect and
reconnect flight battery to aircraft
Aircraft is bound to a different model
memory (ModelMatch
TM
radios only)
Select correct model memory ontransmitter
and disconnect and reconnect flight battery
to aircraft
Flight battery/transmitter battery
charge is too low
Replace/recharge batteries
Transmitter may have been bound to
a different model (or with a different
DSM Protocol)
Select the right transmitter or bind tothe new
one
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Move aircraft and transmitter to another
location and attempt connecting again
Control surface
does not move
Control surface, control horn, linkage
or servo damage
Replace or repair damaged parts and adjust
controls
Wire damaged or connections loose
Perform a wire and connection check;
connect or replace as needed
Flight battery charge is low
Fully recharge flight battery
Control linkage does not move freely
Make sure control linkage moves freely
Controls
reversed
Transmitter settings reversed
Perform the Control Direction Test and adjust
controls on transmitter appropriately
Motor loses
power
Damage to motor or power
components
Do a check of motor and power components
for damage (replace as needed)
Prop shaft nut is too tight
Loosen prop shaft nut until propeller shaft
turns freely
Motor power
pulses then loss
ofpower
Battery power is down to the point of
receiver/ESC Low Voltage Cutoff (LVC)
Recharge flight battery or replace battery that
is no longer performing
Servo locks or
freezes at full
travel
Travel adjust value is set above 100%
overdriving the servo
Set Travel adjust to 100% or less and/or
set sub trims to Zero and adjust linkages
mechanically

Sport Cub S 2
EN
19
BNF | RTF
Replacement Parts
Part #
Description
SPMA3178
Sport Cub S Receiver/ESC
EFLB1501S25
150mAh 1S 3.7V 25C Li-Po battery
EFLC1008
1S USB Li-Po Charger, 300mA
HBZ4406
Landing Gear Set: Sport Cub
HBZ4420
Wing: Sport Cub
HBZ4413
Decal Sheet: Sport Cub
HBZ44520
Fuse w/electronics: Sport Cub
HBZ4467
Bare Fuselage: Sport Cub
HBZ4431
Tail Set: Sport Cub
HBZ4401
Prop and Spinner: Sport Cub
HBZ4429
Motor: Sport Cub
HBZ4430
Complete Gear Box: Sport Cub
HBZ4421
Pushrod/Control Horns: Sport Cub
HBZ4404
Prop Shaft: Sport Cub
SPMSA2030LO
2.3-Gram Linear Long Throw Offset Servo
SPMRMLP6
MLP6DSM SAFE Transmitter Mode 2
SPMRMLP61
MLP6DSM SAFE Transmitter Mode 1
Limited Warranty
What this Warranty Covers — Horizon Hobby, LLC
(Horizon) warrants to the original purchaser that the
product purchased (the “Product”) will be free from
defects in materials and workmanship at the date of
purchase
What is Not Covered — This warranty is not transfer-
able and does not cover (i) cosmetic damage, (ii)
damage due to acts of God, accident, misuse, abuse,
negligence, commercial use, or due to improper use,
installation, operation or maintenance, (iii) modification
of or to any part of the Product, (iv) attempted service
by anyone other than a Horizon Hobby authorized
service center, (v) Product not purchased from an
authorized Horizon dealer, (vi) Product not compliant
with applicable technical regulations, or (vii) use that
violates any applicable laws, rules, or regulations.
OTHER THAN THE EXPRESS WARRANTY ABOVE, HORI-
ZON MAKES NO OTHER WARRANTY OR REPRESENTA-
TION, AND HEREBY DISCLAIMS ANY AND ALL IMPLIED
WARRANTIES, INCLUDING,WITHOUT LIMITATION,
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE PURCHASER ACKNOWLEDGES THAT
THEY ALONE HAVE DETERMINED THAT THE PRODUCT
WILL SUITABLY MEET THE REQUIREMENTS OF THE
PURCHASER’S INTENDED USE.
Purchaser’s Remedy — Horizon’s sole obligation
and purchaser’s sole and exclusive remedy shall be
that Horizon will, at its option, either (i) service, or (ii)
replace, any Product determined by Horizon to be
defective. Horizon reserves the right to inspect any
and all Product(s) involved in a warranty claim. Service
or replacement decisions are at the sole discretion of
Horizon. Proof of purchase is required for all warranty
Optional Parts
Part #
Description
EFLUA1190
Float Set: UMX Carbon Cub SS
EFLB1501S45
150mAh 1S 3.7V 45C LiPo Battery
SPMXC1040
S44 4 Port AC/DC 1S LiPo Charger
SPMXC1060
S63 6 Port USB 1S LiPo Charger
SPMR1000
DXe Transmitter
SPMR8000
DX8 Transmitter
SPMR6750
DX6 Transmitter
claims. SERVICE OR REPLACEMENT AS PROVIDED
UNDER THIS WARRANTY IS THE PURCHASER’S SOLE
AND EXCLUSIVE REMEDY.
Limitation of Liability — HORIZON SHALL NOT
BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
PRODUCTION OR COMMERCIAL LOSS IN ANY WAY,
REGARDLESS OF WHETHER SUCH CLAIM IS BASED IN
CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT
LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN
IF HORIZON HAS BEEN ADVISED OF THE POSSIBIL-
ITY OF SUCH DAMAGES. Further, in no event shall the
liability of Horizon exceed the individual price of the
Product on which liability is asserted. As Horizon has
no control over use, setup, final assembly, modification
or misuse, no liability shall be assumed nor accepted
for any resulting damage or injury. By the act of use,
setup or assembly, the user accepts all resulting li-
ability. If you as the purchaser or user are not prepared
to accept the liability associated with the use of the
Product, purchaser is advised to return the Product
immediately in new and unused condition to the place
of purchase.
Law — These terms are governed by Illinois law
(without regard to conflict of law principals). This
warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.
Horizon reserves the right to change or modify this
warranty at any time without notice.
WARRANTY SERVICES
Questions, Assistance, and Services — Your local
hobby store and/or place of purchase cannot provide
warranty support or service. Once assembly, setup or
use of the Product has been started, you must contact

EN
Sport Cub S 2
20
®
your local distributor or Horizon directly. This will enable
Horizon to better answer your questions and service
you in the event that you may need any assistance.
For questions or assistance, please visit our website at
www.horizonhobby.com, submit a Product Support In-
quiry, or call the toll free telephone number referenced
in the Warranty and Service Contact Information section
to speak with a Product Support representative.
Inspection or Services — If this Product needs
to be inspected or serviced and is compliant in the
country you live and use the Product in, please use the
Horizon Online Service Request submission process
found on our website or call Horizon to obtain a Return
Merchandise Authorization (RMA) number. Pack the
Product securely using a shipping carton. Please
note that original boxes may be included, but are not
designed to withstand the rigors of shipping without
additional protection. Ship via a carrier that provides
tracking and insurance for lost or damaged parcels,
as Horizon is not responsible for merchandise until it
arrives and is accepted at our facility. An Online Service
Request is available at http://www.horizonhobby.com/
content/service-center_render-service-center. If you
do not have internet access, please contact Horizon
Product Support to obtain a RMA number along with
instructions for submitting your product for service.
When calling Horizon, you will be asked to provide
your complete name, street address, email address
and phone number where you can be reached during
business hours. When sending product into Horizon,
please include your RMA number, a list of the included
items, and a brief summary of the problem. A copy of
your original sales receipt must be included for war-
ranty consideration. Be sure your name, address, and
RMA number are clearly written on the outside of the
shipping carton.
Warranty Requirements — For Warranty consid-
eration, you must include your original sales receipt
verifying the proof-of-purchase date. Provided war-
ranty conditions have been met, your Product will be
serviced or replaced free of charge. Service or replace-
ment decisions are at the sole discretion of Horizon.
Non-Warranty Service — Should your service not
be covered by warranty, service will be completed
and payment will be required without notification or
estimate of the expense unless the expense exceeds
50% of the retail purchase cost. By submitting the item
for service you are agreeing to payment of the service
without notification. Service estimates are available
upon request. You must include this request with your
item submitted for service. Non-warranty service
estimateswill be billed a minimum of ½ hour of labor.
In addition you will be billed for return freight. Horizon
accepts money orders and cashier’s checks, as well
as Visa, MasterCard, American Express, and Discover
cards. By submitting any item to Horizon for service,
you are agreeing to Horizon’s Terms and Conditions
found on our website: http://www.horizonhobby.com/
content/service-center_render-service-center.
10/15
Warranty and Service Information
Country of
Purchase
Horizon Hobby
Contact Information
Address
United States
of America
Horizon Service Center
(Repairs and Repair Requests)
servicecenter.horizonhobby.com/
RequestForm/
2904 Research Rd
Champaign, Illinois
61822 USA
Horizon Product Support
(Product Technical Assistance)
[e-mail]
877-504-0233
Sales
[e-mail]
800-338-4639
EU
Horizon Technischer Service
[e-mail]
Hanskampring 9
D 22885 Barsbüttel
Germany
Sales: Horizon Hobby GmbH
[phone]
NOTICE: Do not ship LiPo batteries to Horizon. If
you have any issue with a LiPo battery, please
contact the appropriate Horizon Product Sup-
port office.
ATTENTION: Horizon service is limited to Prod-
uct compliant in the country of use and owner-
ship. If received, a non-compliant Product will
not be serviced. Further, the sender will be re-
sponsible for arranging return shipment of the
un-serviced Product, through a carrier of the
sender’s choice and at the sender’s expense.
Horizon will hold non-compliant Product for a
period of 60 days from notification, after which
it will be discarded.