PARKZONE J-3 Cub BL User manual

J-3 Cub BL
Instruction Manual
ParkZone®products are distributed exclusively by
Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, IL 61822
©2007 Horizon Hobby, Inc.
www.parkzone.com
PKZ4515
605482 01247 5
Charge-and-Fly™ Park Flyer
Wingspan: 37.25 in (946mm)
Overall Length: 26.75 in (680mm)
Weight: 15 oz (425 g)
Motor: PKZ370 Outrunner brushless motor, 1500Kv
FM Radio System: ZX10 3 proportional channels
10601

32
J-3 Cub Instruction Manual
Congratulations on your purchase of the ParkZone® J-3
Cub BL. Your J-3 Cub BL has come with everything
needed to get you in the air—all in one box! You will
only need to attach the wing and landing gear, as well as
charge the battery prior to flight.
We at ParkZone are committed to giving you the most
enjoyable flight experience possible. In order
to have a safe and successful flight, we ask that
you do not fly until you have read these instructions
thoroughly.
The ParkZone J-3 Cub BL comes with a fully
proportional 3-channel FM radio system, providing full
control of throttle, elevator and rudder. If you are not
experienced at flying one of HobbyZone's 3-channel
aircraft, or any other 3-channel radio controlled aircraft,
we recommend that you do not fly this aircraft. If you still
choose to fly, you will need to seek the help of an
experienced radio control pilot during your first several
flights.
Crash damage is not covered under the warranty.
Your ParkZone J-3 Cub BL is equipped with the exclusive
ZX10 radio system which utilizes 10-bit, 1024-step
processing for high-fidelity control. It uses a 6-channel
FM receiver with industry-standard 3-wire servos, along
with X-Port™ capability for maximum expandability and
reusability.
The ZX10 system also features dual rates, allowing you
to fly how you feel most comfortable. Low rate limits the
travel of the control surfaces and offers smooth and
relaxing flight. High rate allows for full control at all times
for those craving the maximum performance
of their aircraft.
ELEV
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Step 1
Step 2
Transmitter
1. Insert 8 new “AA” batteries (supplied) into
the transmitter, observing proper polarity.
2. Turn the switch on to ensure the batteries
have been installed correctly. Once this is
confirmed, turn the radio off.
Installation of Landing Gear
1. Locate the landing gear and the included
screws from within packaging.
2. Using a Phillips screwdriver, attach the
landing gear to the fuselage as shown.
Step 3
Attaching the Wing
1. Locate wing, wing struts and rubberbands.
2. Locate wing strut screws.
3. Place wing on top of fuselage so that it is
centered.
4. Attach wing struts with the mounting screws
as shown. There should be the same amount of
slack in each strut once this is completed.
5. Once you are satisfied the wing is properly
centered and the struts are properly attached,
complete the attachment of the wing with
the included rubber bands. Stretch two of
the rubber bands from the front to the rear
attach points. Stretch the next two diagonally
across the middle. Confirm the wing is securely
attached.
6. Make sure that prior to each flight the wing
is properly centered onto the fuselage. If the
wing is not centered properly, it is impossible
to have correct flight.
Step 4
2
3 x 14mm
(2) 2.5 x 12mm
A’
A’=A” Parallel
A”
Align to
the center.
Fix wing securely to fuselage.
Loss of wing will result in lack of
control and crash.
Use 4 rubber bands
to secure wing
as shown.
AB
Charging the Aircraft Battery
This charger uses unique circuitry that ensures an
accurate charge every time and protects your Li-Po
batteries from the dangers of over-charging. This
charger continually monitors the battery and
automatically stops charging when the battery is
fully charged. The balance charger will help avoid
damaging Li-Po cells.
DC Li-Po Balancing Charger Features:
• Charges 2-cell lithium polymer battery packs
• LED charge status indicator
• LED cell balance indicator
• Cigarette lighter input cord
800mAh 7.4V 2S Li-Po .8 amps 60 minutes
BATTERY CAPACITY
MAX. CHARGE RATE CHARGE TIME
Note: Charge times are
estimates only for a fully
discharged battery pack.
Actual charge times may
vary.

Motor Test
1. Make sure the throttle slider is in the “off”
position.
2. Turn on the transmitter.
3. Remove the battery door from bottom of the
fuselage. (See image B in Step 2 on page 2.)
4. Plug the flight battery into the red lead inside
the fuselage.
5. Secure the battery inside the fuselage cavity
and replace the battery door.
6. Your J-3 Cub BL has a built-in throttle-arming
feature which needs to“see” the throttle slider in
the Off position before it will spin the propeller.
(CAUTION: Make sure that you, as well as loose
clothing and hair, are away from propeller at all
times!) Advance the throttle forward and the
propeller should spin at a high speed. The throttle-
arming feature will need to be activated each time
the battery is plugged into the airplane.
7. When finished with the motor test, continue to
Tail Control Test on the next page.
Note: It is important to always turn on the transmit-
ter prior to plugging in the flight battery. Plugging in
the flight battery first may cause undesired operation
due to interference, potentially resulting in damage
to the aircraft or injury.
ELEV
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54
Step 5
Step 6
Tail Control Test
Warning: Keep everything clear of the propeller
before starting the control test in the event that you
accidentally turn on the motor.
1. Be certain that the throttle slider is in the “Off”
position. Make certain both trim levers
are centered.
2. Move the stick from side to side. The rudder
should move per your transmitter input.
3. Move the stick full forward. When this is done,
the elevator control surface should move down
(as shown).
4. Pull the stick back and the elevator control
surface should move upward (as shown).
5. If your airplane is not responding correctly
to the transmitter input, do not fly! Some
correction is needed. Call the Horizon Product
Support Group at 1-877-504-0233.
6. When the test is complete, be sure to
disconnect the flight battery first, then turn off
the transmitter. This should be done each time
you turn off the airplane.
Note: It is very important to make sure that the con-
trol surfaces (rudder and elevator) are at 0 degrees
when the transmitter control stick and trim levers are
centered.
You must charge the included Li-Po battery pack with
a Li-Po specific charger only (such as the included
charger). Never leave the battery and charger
unattended during the charge process. Failure to
follow the instructions properly could result in a fire.
When charging, make certain the battery is on a
heat-resistant surface.
Charging the Aircraft Battery:
1. The 12V DC 2S Li-Po balancing charger
provides a charge current of .8 amps.
The typical charge time for the included 7.4V
800mAh Li-Po is approximately 40 minutes
to 1 hour.
2. Locate the safety charge lead on the battery
pack. Connect the battery pack to the charger.
(Charge through balance lead on battery pack.)
3. Connect the charger to the 12V power outlet in
your automobile. Please note that some 12V
outlets require your vehicle to be running for
the outlet to be operational. It is
recommended to consult your vehicle's owner's
manual if you are unsure. The LED will
continually blink while the battery charges. It
is not recommended to charge batteries while
the vehicle is in motion.
4. Charging is finished when the LED indicator
glows steadily.
Note: Damage to the charger and battery will occur if
you exceed the maximum charge rate
recommended.
ELEV
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ELEV
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ELEV
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If rudder does not move as per control stick,
do not fly.
Right
Up
Down
Left
approx.
3/8 in (10mm)
approx.
3/8 in (10mm)
approx.
1/4 in
(6mm)
approx.
1/4 in
(6mm)
RUDDER ELEVATOR
Adult Supervision Required
WARNING: Keep everything clear of the propeller
and hold the plane securely. A moving propeller can
cause severe injury.
ELEV
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continued
Step 4
Rudder
Trim
Elevator
Trim
ON
OFF

76
Step 7
Making Adjustments to the Control Surfaces
1. Any changes necessary to bring both the
rudder and elevator to neutral (zero degrees)
when the transmitter stick is centered should
be possible using the trim levers.
2. If you find this is not the case, do not fly
until this has been corrected.
3. If corrections are needed, you may have to adjust
the length of the pushrod by removing the clevis
from the control surface horn and turning the
plastic clevis as necessary.
If you have any questions regarding this, please
contact the Horizon Product Support Group at
1-877-504-0233.
Step 10
Range Test
You will need two people to perform the range
test: one to hold the plane and the other to give the
transmitter input.
Warning: The person holding the plane should hold it
in a way so the propeller does not come into contact
with anything loose on their clothing or body.
1. One person holds the transmitter, while the
other person walks 100 paces away with the
airplane.
2. Be sure the throttle slider is in the“Off”position.
3. Extend the transmitter antenna completely and
turn the transmitter on.
4. Plug the airplane battery into the fuselage.
5. As soon as the throttle slider is advanced, the
propeller should spin quickly.
6. As the first person moves the transmitter
controls at the same time, the other person
watches to be sure the airplane’s motor and tail
controls operate smoothly.
Step 11
Seek Assistance from an Experienced
Radio Control Pilot
VERY IMPORTANT: The 3-channel control system is
designed for the experienced radio control pilot and
is not intended for the first-time flier. It is best to have
HobbyZone® Zone 2 experience. First-time pilots of
the ParkZone® J-3 Cub BL should seek the assistance
of an experienced RC flier until the additional third
channel, pitch control, has been competently mas-
tered. Crash damage is not covered under
the warranty.
Important: Initial flights should always be done with
the airplane in low rate.
Step 12
Hand Launching the J-3 Cub BL
1. Make certain that the aircraft battery is fully
charged.
2. Turn on the transmitter.
3. Plug in the aircraft battery.
4. Arm the motor, and test the motor
and controls.
5. While holding the transmitter in one hand,
push the throttle slider to full on (up) with
thumb.
6. Take a couple of steps back and launch directly
into the wind. Keep the wings level. Use medi-
um force; do not throw it up or down. Point it
level (parallel) with the ground when releasing.
7. Keep steering into the wind and hold at full throt-
tle in a slight climb until you have reached an alti-
tude of at least 50 feet.
8. When you have reached this altitude, it is safe to
steer in the desired direction.
Step 8
Choose a Large, Open Flying Site
• A large, open grassy field is required to fly your
J-3 Cub BL . The J-3 Cub BL flies about 15–20
mph, so it covers ground fast. The bigger the
field, the better.
• It is essential to have a minimum of 300 feet of
clear space in all directions from the pilot.
Ignoring this direction, could result in a
fly-away plane.
• Make certain that you do not fly near trees,
buildings, or other areas that can restrict your
view or interfere with your flying.
• Always keep the plane upwind from you to
avoid flyaways. This is essential.
Step 9
Choose a Calm Day
You want to fly! However, you need to make sure
that you fly in the conditions that will allow you to
have the best success. This is when there
is little to no wind (less than 7 mph).
To check wind conditions:
1. Tie the included red ribbon to the
transmitter antenna.
2. Hold the transmitter antenna so that it is
parallel to the ground and note how much
the ribbon moves in the wind. If the rib-
bon hangs down, conditions are right to fly.
However, if the angle between the antenna
and the ribbon is less than 20 degrees, it
is too windy to fly.
20º
100 paces
WIND
Fly in this area
(upwind of pilot).
Stand here.
600 feet
WIND

98
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Step 13
Runway Takeoff
1. Prior to attempting a runway takeoff, you
should have had several successful flights
of hand-launching the J-3 Cub BL.
2. Make certain the aircraft battery is fully
charged.
3. Turn on the transmitter.
4. Plug in the aircraft battery.
5. Stand behind the J-3 Cub BL and take note of
the wind so that you can take off directly into
it. Make certain you are on smooth asphalt or
concrete.
6. Apply full throttle and adjust the stick so
that you keep your J-3 Cub BL headed directly into
the wind.
7. If the battery is fully charged, you should
be able to lift off the ground in approximately
30–40 feet. As you notice the back of the plane
beginning to lift a bit off the ground, apply some
“up” elevator by pulling back on the stick. Do not
give too much “up”elevator, or you can cause the
airplane to enter into a stall.
Step 15
Throttle Adjustment
1. Climb to an altitude of 100 feet or more with
full throttle.
2. To achieve and maintain a level“cruising” alti-
tude, reduce the power by moving the throttle
slider down to approximately 50% of full-on.
The throttle slider is proportional, so you can
add or reduce throttle in small increments as
needed to maintain the altitude that you desire.
3. To reduce altitude, reduce throttle.
4. To increase altitude, increase throttle.
Step 14
Flying
1. After launching, your J-3 Cub BL will climb at
full throttle. Keep the throttle full on until you
have reached an altitude of about 50 feet.
At this same time, make sure that you are
continuing to keep the airplane directed into
the wind.
2. Make right and left adjustments as necessary to
keep the plane headed directly into the wind.
After you have reached 50 feet of
altitude, you can begin to make directional
changes that you desire.
3. Remember—control range is 2,500 feet. Do not
allow the plane to get too far away from you.When
the plane is further in the air it is harder to see and
the winds are stronger as well.
4. Always keep the plane upwind from you. This
way, the airplane will not be carried away from
you by the wind.
5. Flying in too much wind is by far the number
one reason for those who are inexperienced to
crash or have flyaways.
6. Avoid holding the stick full right or left for more
than two seconds, as this will cause the plane to
enter a spiral and could threaten your J-3 Cub BL.
7. Do not try to climb too fast by pulling all the
way back on the stick (up elevator), or your
plane may enter into a stall. Instead, climb by
giving small amounts of elevator.
8. Damage/bends to the wings or tail can greatly
affect flight control. Replace the damaged parts
immediately.
continued
Step 14
Sharp Turns
In order to make a sharper turn, move the stick in
the desired direction and add some up elevator (pull
back on stick). The plane will make a sharper banking
turn.
Note: With the throttle slider set at low or off
(gliding), the plane will not turn as fast as when you
are flying at or near full throttle.
Rudder Trim
If the model wants to constantly turn one
direction, use the trim lever to correct (see drawing).
Your J-3 Cub BL should fly straight with the control
stick at neutral.
Elevator Trim
If your J-3 Cub BL wants to go up or down, use
the trim lever located at the left of the stick to
correct (see drawing). The model should fly straight
with the control stick at neutral and should have a
steady, shallow climb at full throttle.
Sharp Turn
Elevator
Trim Lever
Rudder
Trim Lever
NOTE: With the throttle stick set at low or off
(gliding), the plane will not turn as fast as when the
throttle is set on high.
ELEV
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Throttle
Lever
Full
Throttle
Reduced
Throttle
Approx. 50% Throttle
Full
Throttle
Off
Full
On

1110
Reduce power at 10 feet.
Step 16
Using Elevator
Your J-3 Cub BL is equipped with a third channel
for elevator (pitch control). Pulling back on the stick
provides up elevator. This allows for shorter takeoffs,
better flares for landing, better climb rates, and more
effective turns. However, pulling too far back on the
elevator to climb too quickly will cause the airplane
to enter a stall (make the nose of the plane come
down).
To avoid crashing from a stall, always maintain
enough altitude to recover.
Just after a stall has occurred, the nose of the
airplane will fall and the plane will look like it is
diving. To pull out of a stall, simply pull back slowly
on the stick (partial up elevator) once your J-3 Cub BL
has built up airspeed. Remember, pulling back too
quickly or for too long will once again cause the
airplane to enter a stall. Effectively avoiding and
recovering from stalls requires experience. Always
seek the help of an experienced radio control pilot if
you are not familiar with pitch control. Failure to do
so, could result in a crash and significant damage to
your airplane.
Step 17
Landing Your J-3 Cub BL
When you begin to notice that your J-3 Cub BL no
longer climbs well under full power (normally after
approximately 15 minutes), the battery is getting
low and it is time to land. Bring in your J-3 Cub BL
directly into the wind and toward the desired land-
ing spot. Gradually reduce throttle (as well as giving
a small amount of down elevator if you choose) to
reach an altitude of approximately 10 feet. At this
point, reduce even more throttle and your J-3 Cub BL
should glide in softly for a landing.
Note: Your J-3 Cub BL should be landed on a smooth
surface (such as asphalt or concrete) so that the land-
ing gear can work effectively. You can land in short
grass, but it is less ideal.
Expert Tip: As you get better and more experienced
at flying, try adding a bit of “up” elevator just prior to
landing to “flare” the plane. With some practice, your
landings should become smooth and on target.
WARNING: Do not attempt to catch the airplane or
injury may occur. Remember, there is a spinning pro-
peller on the front of the plane that can cause injury!
Also, remember to cut power to the motor right
before you land to prevent damage to the propeller.
Step 18
Aerobatic Flight
Your J-3 Cub BL comes out of the box with the
controls set for softer responses and at the outer
holes of the control surfaces. However, once you get
used to the flight characteristics and want to
perform more aerobatic maneuvers, you can change
the amount of throw that is permitted by moving to
the inner holes of the control horns.
After making any adjustments, always turn on
the transmitter and center the transmitter trim levers,
making sure the control surfaces are adjusted evenly.
Note: By making these changes, the controls will be
much more responsive. But this makes the
airplane much less forgiving and easier to stall.
Remember, crash damage is not covered under the
warranty.
Step 19
Repairing Minor Damage
If you happen to crash and part of the tail or
wing breaks, it can be repaired by using packing tape
to cover the missing pieces. However, if damage is
severe, or if the wings and/or tail are bent, replace
the damaged parts prior to flying again. See this
manual for a complete list of replacement parts for
your J-3 Cub BL .
Success Tips
1. Don’t fly in winds over 7 mph! First-time pilots
should get help from an experienced radio control
pilot during first flights.
2. Choose your flying field carefully—grass and soft
ground with 600-foot diameter of open space is
optimal for flying and will lengthen the life of the
J-3 Cub BL. Make sure there are no obstacles that
will get in your way when flying, such as trees or
buildings. Make sure you do not fly where there are
pedestrians who could be hurt by the airplane.
3. Remember that holding the stick full over for too
long can cause the airplane to spiral dive and crash.
At the very first sign of the J-3 Cub BL beginning to
spiral down, immediately release the stick and give
the opposite turn control to the spiral, then pull
back on the elevator gently to level flight and level
the wings.
4. Don’t attempt to fly or do maneuvers beyond your
flying abilities without seeking the assistance of an
experienced pilot.
5. If you’re gliding with the motor off, allow the J-3
Cub BL more area for turns.
6. Position yourself at your flying field to keep the
sun at your back and out of your eyes. Wear sun-
glasses on bright days.
7. Keep the J-3 Cub BL upwind, especially on windier
days, to prevent it from “flying away.”The wind is
normally stronger at higher altitudes than it is on
the ground.
8. Keep your plane in front of you so you don’t have to
turn in circles as you fly. Try to avoid flying directly
overhead.

1312
Warnings and Safety
1. Read and follow this manual completely, observing
all instructions and safety directions. Otherwise,
serious injury and damage can occur.
Think safety first.
2. Keep propeller away from body parts, even when it
isn’t spinning, as it could be turned on by accident.
Beware of hair becoming entangled in the
propeller, especially while launching the J-3 Cub BL.
3. Do not fly when it’s too windy or you may lose
control and crash, causing injury or damage. Never
fly near people, vehicles, train tracks, buildings,
power lines, water, hard surfaces or trees. Never
allow any one to attempt to catch the airplane
while it’s in flight or serious injury can result.
4. Adult supervision is recommended for ages 14
and under.
5. Battery charging: Only use a battery charger
intended for use with the flight battery. Never leave
charger unattended while charging. This will help
prevent overcharging. While charging, place the
battery on a heat resistant surface. Do not lay it on
carpet or upholstery while charging.
6. Never cut into the battery charger or airplane wires
or serious injury can occur. Causing the
battery to “short out” (crossing negative and
positive bare wires) can cause fire, serious injury
and damage.
7. Hold the plane securely, and keep all body parts
away from the propeller when the flight battery
is plugged in. When you finish flying the J-3 Cub BL,
always unplug the battery before you turn off
the transmitter.
8. Never fly on the same frequency as another RC
vehicle in your area. The frequency of the
J-3 Cub BL is shown on stickers on the back of the
transmitter.
Unit does not operate 1. Transmitter “AA”batteries are deplet-
ed or installed incorrectly,
indicated by a dim or unlit LED on
transmitter or the low battery alarm.
2. No electrical connection.
3. Flight battery not charged.
4. Crash has damaged the radio inside.
1. Check polarity installation or
replace with fresh “AA” batteries.
2. Push connectors together until
they “click.”
3. Charge battery fully.
4. Replace the fuselage or receiver.
Aircraft keeps turning in
one direction
1. Rudder or rudder trim are not adjusted
correctly.
2. Wing is not centered over the fuselage.
1. Adjust rudder and/or rudder trim.
2. Center wing prior to each flight.
Aircraft is difficult
to control
1. Wing or tail is damaged. 1. Replace damaged part.
Aircraft will not climb 1. Battery is not fully charged.
2. Elevator trim may be incorrect.
1. Charge battery fully shortly before
flying.
2. Adjust elevator trim.
Aircraft keeps
pitching up steeply
1. Wind is too gusty or strong. 1. Postpone flying until the wind
calms down.
PROBLEM
POSSIBLE CAUSE SOLUTION
Troubleshooting
Before first use, please refer to Chart A for BEC usage
and input voltage/cell count guidelines. You must
follow these guidelines for safe operation. If you are
using four servos with higher current draw, or more
than four servos for a quad flap option (for example),
you will need to disable the BEC. If you wish to disable
the BEC, you must remove the red receiver wire lead
and connector from the receiver lead housing, and
then insulate it properly to prevent shorting.
When operating with the BEC disabled, E-flite
recommends the use of a separate, high power,
external, BEC (like the Ultimate BEC), or receiver
pack and switch using the following items to ensure
trouble-free operation:
1. Expert 720mAh Ni-MH 4.8V receiver battery
(EXRB100), or similar
2. Expert Standard Switch (EXRA050), or similar
PLEASE READ THESE INSTRUCTIONS
IN THEIR ENTIRETY BEFORE USE
Before you connect your ESC and begin flying, take
a moment to look it over. The input power side has a
black (negative) and red (positive) wire along with a
female JST Connector. The motor side has three, 2mm
female gold bullet connectors.
The black and red wires with the female JST connector
will connect to your power battery. The red wire
connects to the red wire on your battery pack, the
black wire to the black wire on your battery pack. If
the wires are reversed, the ESC may be damaged. YOU
MUST ENSURE THAT YOU CONNECT THE BATTERY
POLARITY PROPERLY TO PREVENT DAMAGE TO
THE ESC. Reversing polarity will void your warranty, so
always double-check this connection. You may need to
solder a male JST Connector (EFLA242) to the battery
so it matches this speed control. The throttle lead
connects to the throttle channel on your radio receiver.
Specifications:
• Continuous Current: 10A
• Max Burst Current: 12A (15 sec)
• Length: 30mm (1.2 in)
• Width: 17.5mm (.7 in)
•Height: 10mm (.4 in)
• Weight: 10 g (.35 oz)
• Cells: 2-3S Li-Po or 6-10 Ni-MH/Ni-Cd
• Battery Input Leads: 20 AWG with JST Connector
• Motor Output Leads: 20 AWG with 2mm Female Gold
Bullet Connectors
** Sub-Micro servos tested 4 at a time include E-flite S-60, and
S-75, JR 241, and ParkZone®3W servo.Some other brands of
servos have significantly higher current draw. Digital sub-micro
servos, micro, and mini-servos have higher current draw, use the
'standard servos' column. Always be sure to position the ESC for
maximum airflow since cooling can significantly aid in the
performance of the BEC.
Features:
• Up to 10 amps continuous current with proper
air flow
• Programmable motor braking
• Safe power-arm mode prevents accidental starts
• Programmable low voltage cutoff with settings
for 2-cell Li-Po (6V), 3-cell Li-Po (9V) or 70% of
battery starting voltage
• Programmable throttle input range
(1.1ms-1.9ms or Auto Select)
• Soft start
• Auto motor shut down if signal is lost or there is
interference
• Programmable timing—2 user-selectable ranges
for use with a large variety of brushless motors
• Pre-wired connectors—JST on battery input and
2mm female gold bullets on motor output leads
Programming the E-flite 10A Pro Brushless ESC
The E-flite® 10A Pro Brushless ESC controller has been designed for use in radio control aircraft and to sup-
port continuous currents of up to 10 amps when using 2-3 cell Li-Po battery packs and up to four sub-micro
servos. Standard features include advance BEC and safe power arming along with programmable features
such as low voltage cutoff, braking, timing, and throttle input range.
Servo Ratings with BEC Enabled:
Cell High Torque Standard Sub-Micro
Servos Servos Servos
6 - 8 NiCd/NiMH 3 4 4**
9 - 10 NiCd/NiMH 2 3 4**
2 Li-Po 3 4 4**
3 Li-Po 2 3 4**
Chart A

1514
WARNING: For your safety, when checking the
startup function of the ESC or making programming
changes, please remove the propeller to prevent
any potential injury. You should always treat the
motor and propeller as live and dangerous,
remembering that it could start at any time, and
keep any body parts, clothing and tools clear of the
propeller arc. NEVER LEAVE THE BATTERY
CONNECTED WHEN NOT FLYING THE AIRCRAFT
AND ALWAYS REMOVE THE BATTERY FROM THE
MODEL BEFORE CHARGING AND WHEN
FINISHED FLYING.
When flying in hot weather, we recommend checking
on the condition of the ESC, battery, and motor after
each flight, and you may want to consider letting the
electronic components cool to near ambient
temperature between flights.
We also recommend throttle management when
running near maximum levels of current draw. It is
not recommended that you fly an entire flight at full
throttle. If this is done, it is possible to cause
permanent damage to your motor, battery, and ESC.
Using Your 10-Amp Pro Brushless Controller:
This controller is very simple to use, and for safety, will
not arm the motor until the throttle stick has been
held in the Idle/OFF position for more than 1 second.
The controller will indicate the soft cutoff voltage
setting every time you plug the battery in by first
emitting a low, long tone, to show startup. You will
then hear 2 (for 2-cell Li-Po) or 3 (for 3-cell Li-Po)
medium length, mid tones to indicate the cell count
(or 7 beeps if 70% Smart Cut is selected), helping you
to confirm the setting before every flight.
Connecting the ESC to the Motor:
The three wires from your motor connect to the three
female gold bullet connectors on the ESC. The order
of connection to the motor is not important; you can
plug any motor wire into any connector. If, when you
test the system, the motor runs backwards you can
simply unplug and switch any two of the motor wire
plugs connected to the ESC.
Mounting the ESC:
Choose a location that has good airflow and
offers good protection.
The plastic case area next to the small BEC heat sink is
designed to accept Velcro® or 2-sided tape. Do not
cover the heat sinks as this will greatly reduce their
effectiveness.
Mount the ESC with a combination of Velcro®,
2-sided foam tape, and/or tie wraps.
Starting Your Power System:
1. Turn on your transmitter and ensure the position
of the throttle stick is set to Idle/Off.
2. Plug in the flight pack to the controller and
listen for the tones to indicate voltage cutoff.
3. After the controller has indicated the cell
count, you will here a series of 3 medium
length rising tones to indicate the controller is
armed, and ready to fly.
4. When you move the throttle stick upward,
the motor will run. If you continue to move the
throttle stick upward to Full throttle (high
position), the motor will run faster. If you lower
the throttle stick below the start-up position,
the motor will stop running.
5. Check servo motion as part of your preflight
check. It is very important you make sure
linkages are free-moving with no binding.
Entering the Programming Mode:
1. With the battery disconnected from the
controller, and the transmitter turned on, first
move the throttle stick to full throttle (>1.7ms)
position. Leave it in this position and then
connect the battery to the controller.
2. Wait for 5 seconds, and the ESC will give two sets
of fast ringing tones to indicate you have
successfully entered the programming mode.
3. Once you hear these tones, move the stick to
center (between 1.4 and 1.6ms), and the
controller will beep 1 time; this indicates
menu item 1.
4. The controller will now wait 5 seconds for you
to make your selection; your programming
options are either full throttle (>1.7ms),
or idle (<1.3ms).
5. When you have made a valid selection the
control will beep once with a lower tone, and
you can move the stick back to center for the
next menu item (2 beeps, 3 beeps and so on). If
you do not make a selection within 5 seconds,
the controller will move to the next menu item.
6. Please note that if you do not need to
program every menu item, you can simply exit
the programming mode after you have made
the required selections. You can do this by
moving the throttle stick straight to Idle, after
making your selection, or leaving it in the Idle
position if you made a no selection (for
approximately 8 seconds), until you hear one
set of 3 medium length rising tones that
indicate the controller has armed the motor, or
by simply unplugging the battery.
Remember, when in the programming mode:
Full Throttle = Stick Up
Idle = Stick Down
The default settings (from the package) for your
E-flite® 10-Amp Pro ESC are as follows:
• 3S (9V) auto cutoff for Li-Po
• Brake Off
• 4-pole and greater timing (outrunner or
6-pole motors)
• Throttle input range set to Auto Select Mode
(1.2ms–1.8ms)
Programming Menu 1 – Voltage Cutoff:
Use this option to set the voltage at which the
controller will shut down the motor to prevent
damage to your battery, when it reaches the cutoff
voltage. You will know that your battery pack has
reached auto cutoff when you hear the motor
“pulse” repeatedly.
1. 3S Li-Po voltage cutoff – Full Throttle
2. 2S Li-Po or Ni-Cd/Ni-MH voltage cutoff – Idle
3. 70% Smart Cut soft cutoff (See below for
Smart Cut information)
NOTE: To access the 70% Smart Cut option, leave the stick at full throt-
tle for 7 seconds while in menu item 1, until 7 beeps are heard, then
continue through the program normally. This option will
activate the soft cutoff at 70% of startup voltage. For example, if your
pack measures 10.0 volts at startup, then the soft cut will occur at 7.0
volts. The Smart Cut option will check the startup voltage every time
you plug the battery into the controller, so beware of using
partially charged packs, as the system cannot protect your Li-Po
batteries if you are using Smart Cut and connect a partially
charged pack.
You will know your battery pack has reached soft auto
cutoff when you hear the motor “pulse” repeatedly.
We recommend you land your model as soon as you
hear the motor pulse (indicating the pack voltage has
dropped to the cutoff voltage level) to prevent
over-discharge of the Li-Po battery pack and to
prevent sudden power loss.
Programming Menu 2 – Braking:
This option gives you the choice to have the ESC stop
the propeller during flight (Brake on) or allow it to
windmill (Brake off). Use the brake-on option
for gliders.
1. Brake Off – Full Throttle (>1.7ms)
2. Brake On – Idle (<1.3ms)
Programming Menu 3 – Timing:
Please refer to your motor instructions and
specifications for an indication of the number of poles.
1. 4-pole and greater motors timing
mode – Full Throttle
2. 2-pole motors timing mode – Idle
Programming Menu 4 – Throttle Input Range:
This option is to allow for proper operation of the ESC
with many different radios on the market. Most radios,
and all the computer radios we have tested, work well
with the auto-set option, but some radios have a wider
output range, and may give a more linear response
with the 1.1 to 1.9ms range. If you feel there is too
much “dead” area in the stick movement near Full
Throttle, try adjusting the end points in your radio, or
change to the wider input range.
Be aware that if these settings are not correct, it may
be impossible to arm the controller. If this happens,
return the input range setting to the default auto
learning setting.
The auto setting option learns the minimum
position of your throttle (between 1.1 and 1.3ms) and
stores this value at each startup, and then adds a value
of 0.6ms for the full throttle setting.
1. Throttle Range 1.1ms to 1.9ms – Full Throttle
2. Auto Select – Idle

2 216
Error Codes:
The controller will beep continuously if the input
voltage is below the cut voltage (beep...beep...beep)
when the battery is connected. Check the voltage
of the battery pack to see if it is correct, or the
programmed cutoff setting if the input voltage is
set incorrectly for the voltage of the pack
being used.
If you have trouble arming the controller (and the
throttle trim has been set to minimum), enter the
programming mode and try the auto setting in
Programming Menu 4 to see if it helps correct your
problem. If it is a computer radio, you may
alternatively increase your high and low throttle
ATV (endpoint) percentages.
Some systems, including many Futaba* systems,
may require the throttle channel to be “reversed” for
proper operation.
* Futaba is a registered trademark of Futaba Denshi Kogyo Kabushiki Kaisha
Corporation of Japan.
Warranty Period:
Exclusive Warranty- Horizon Hobby, Inc., (Horizon)
warranties that the Products purchased (the "Product") will be free from defects in materials and workmanship at the
date of purchase by the Purchaser.
Limited Warranty
(a) This warranty is limited to the original Purchaser ("Purchaser") and is not transferable. REPAIR OR
REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This
warranty covers only those Products purchased from an authorized Horizon dealer. Third party transactions are
not covered by this warranty. Proof of purchase is required for warranty claims. Further, Horizon reserves the
right to change or modify this warranty without notice and disclaims all other warranties, express or implied.
(b) Limitations- HORIZON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCT. THE
PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY
MEET THE REQUIREMENTS OF THE PURCHASER’S
INTENDED USE.
(c) Purchaser Remedy- Horizon's sole obligation
hereunder shall be that Horizon will, at its option, (i) repair or (ii) replace, any Product determined by Horizon to
be defective. In the event of a defect, these are the Purchaser's exclusive remedies. Horizon reserves the right to
inspect any and all equipment involved in a warranty claim. Repair or replacement decisions are at the sole
discretion of Horizon. This warranty does not cover cosmetic damage or damage due to acts of God, accident,
misuse, abuse, negligence, commercial use, or modification of or to any part of the Product. This warranty does
not cover damage due to improper installation, operation, maintenance, or attempted repair by anyone other
than Horizon. Return of any goods by Purchaser must be approved in writing by Horizon before shipment.
Warranty
17
Damage Limits:
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS
OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT, WHETHER SUCH
CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. 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 liability.
If you as the Purchaser or user are not prepared to accept the liability associated with the use of this Product,
you are advised to return this 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).
Safety Precautions:
This is a sophisticated hobby Product and not a toy. 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. The Product 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 injury.
Questions, Assistance, and Repairs:
Your local hobby store and/or place of purchase
cannot provide warranty support or repair. Once assembly, setup or use of the Product has been started, you
must contact 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 direct your email to
[email protected], or call 877.504.0233 toll free to speak to a service technician.
Inspection or Repairs
If this Product needs to be inspected or repaired, please call for a Return Merchandise Authorization (RMA).
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. A Service Repair Request is available at www.horizonhobby.com on the “Support”
tab. If you do not have internet access, please include a letter with your complete name, street address, email
address and phone number where you can be reached during business days, your RMA number, a list of the
included items, method of payment for any non-warranty expenses and a brief summary of the problem. Your
original sales receipt must also be included for warranty consideration. Be sure your name, address, and RMA
number are clearly written on the outside of the shipping carton.
Warranty Inspection and Repairs
To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase date.
Provided warranty conditions have been met, your Product will be repaired or replaced free of charge. Repair or
replacement decisions are at the sole discretion of Horizon Hobby.
Non-Warranty Repairs
Should your repair not be covered by warranty the repair 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 repair you are agreeing to payment of the repair without notification. Repair estimates
are available upon request. You must include this request with your repair. Non-warranty repair estimates will

2 2
18
be billed a minimum of ½ hour of labor. In addition you will be billed for return freight. Please advise us of your
preferred method of payment. Horizon accepts money orders and cashiers checks, as well as Visa, MasterCard,
American Express, and Discover cards. If you choose to pay by credit card, please include your credit card
number and expiration date. Any repair left unpaid or unclaimed after 90 days will be considered abandoned
and will be disposed of accordingly. Please note: non-warranty repair is only available on electronics and model
engines.
Electronics and engines requiring inspection or repair should be shipped to the following address:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other Products requiring warranty inspection or repair should be shipped to the following address:
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Please call 877-504-0233 with any questions or concerns regarding this product or warranty.
19
Follow-up Procedures
If you are directed by our Product Support staff to return the airplane, please follow these instructions.
1. Unplug the battery from the airplane.
2. Pack the complete ParkZone® J-3 Cub
BL (all components in the original box)
and put into a sturdy shipping carton
for protection.
3. Include your complete name and
address information inside the
carton, as well as clearly writing it on
the outer label/return address area.
Include detailed information
explaining the nature of the
problem(s) encountered.
4. Please date your correspondence
and be sure your complete name,
address and daytime phone
number appear on this enclosure.
Please include your original dated
sales receipt.
Mail to the address below.
Horizon Service Center
Attn: ParkZone Dept.
4105 Fieldstone Rd.
Champaign, IL 61822
ITEM # DESCRIPTION RETAIL
PKZ4500 J-3 Cub BL RTF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199.99
PKZ1102 Decal Sheet: J-3 BL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.99
PKZ1106 Landing Gear w/Tires: J-3 BL . . . . . . . . . . . . . . . . . . . . 5.99
PKZ1108 Wing Hold Down Rods w/Caps (2): J-3 BL. . . . . . . . 1.49
PKZ1110 Yellow Rubber Bands (4): J-3 BL .................. .99
PKZ1112 Battery Door w/Latch: J-3, J-3BL. . . . . . . . . . . . . . . . . 1.79
PKZ4514 Firewall w/Screws: J-3, J-3 BL.................... 1.79
PKZ4515 Instruction Manual: J-3 BL. . . . . . . . . . . . . . . . . . . . . . . .99
PKZ4516 370 Brushless Outrunner Motor, 1500Kv. . . . . . . . .35.99
PKZ1120 Standard Wing: J-3, J-3BL ...................... 19.99
PKZ1122 Wing Struts w/Screws: J-3, J-3BL . . . . . . . . . . . . . . . . 1.99
PKZ1124 Complete Tail w/Accessories: J-3, J-3BL . . . . . . . . . 9.99
PKZ1126 Cowl: J-3, J-3 BL ................................ 1.99
PKZ1060 Mini Servo w/Arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.99
PKZ1771 Tx: CH 1, 26.995: J-3 BL, Spitfire . . . . . . . . . . . . . . . . 32.99
PKZ1772 Tx: CH 2, 27.045: J-3 BL, Spitfire................. 32.99
PKZ1773 Tx: CH 3, 27.095: J-3 BL, Spitfire. . . . . . . . . . . . . . . . . 32.99
PKZ1774 Tx: CH 4, 27.145: J-3 BL, Spitfire................. 32.99
PKZ1775 Tx: CH 5, 27.195: J-3 BL, Spitfire. . . . . . . . . . . . . . . . . 32.99
PKZ1776 Tx: CH 6, 27.255: J-3 BL, Spitfire. . . . . . . . . . . . . . . . . 32.99
PKZ1751 Rx: CH 1, 26.995: J-3 BL, Spitfire ................ 37.99
PKZ1752 Rx: CH 2, 27.045: J-3 BL, Spitfire . . . . . . . . . . . . . . . . 37.99
PKZ1753 Rx: CH 3, 27.095: J-3 BL, Spitfire . . . . . . . . . . . . . . . . 37.99
PKZ1754 Rx: CH 4, 27.145: J-3 BL, Spitfire ................ 37.99
PKZ1755 Rx: CH 5, 27.195: J-3 BL, Spitfire . . . . . . . . . . . . . . . . 37.99
PKZ1756 Rx: CH 6, 27.255: J-3 BL, Spitfire ................ 37.99
PKZ4567 Bare Fuselage: J-3 BL. . . . . . . . . . . . . . . . . . . . . . . . . . . 14.99
PKZ1014 Hi-Pitch Prop (8.25x5.5): J-3 BL . . . . . . . . . . . . . . . . . . 3.99
PKZ1032 7.4V 2S 800mAh Li-Po ......................... 25.99
PKZ1041 2S DC Li-Po Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.99
PKZ1013 PropAdapter....................................5.99
Replacement Parts
Make sure that you keep your J-3 Cub BL in the air. Replacement parts are available at your local hobby store or
from Horizon Hobby (www.horizonhobby.com). Please try your local retailer first. By supporting your local hobby
store, they will have replacement parts in stock when you need them.