ATTACHMENT 11 
ParkZone® products are distributed exclusively by

Horizon Hobby, Inc. 

4105 Fieldstone Road

Champaign, IL 61822

Horizon Hobby UK

Units 1-4 Ployters Rd

Staple Tye

Southern Way

Harlow

Essex CM18 7NS

United Kingdom

Horizon Hobby Deutschland GmbH

Otto Hahn Str. 9a

25337 Elmshorn

Germany

The Spektrum trademark is used with permission of Bachmann Industries, Inc.

© 2008 Horizon Hobby, Inc.

parkzone.com

13253

 RTF

Instruction Manual

Wingspan: 78.74 in (2 meters)

Length: 44.7 in (1137mm)

Weight w/Battery: 30 oz

Radio: Spektrum DX5e w/AR500 full range receiver

Battery: 11.1V 1300mAh Li-Po

Motor: PKZ 480-size, 960Kv brushless outrunner

ESC: E-flite 30A brushless ESC with Switch-Mode BEC

Charge-and-FlyTM Park Flyer
3 4

The experience of flying just got better. The ParkZone®

RadianTM encompasses all the benefits that ParkZone 

pilots have known to love. Experience the true essence 

of flight while quietly gliding on thermals of air—only 

using the motor to regain altitude, making for much 

longer flight times than traditional electric aircraft. 

This eco-friendly alternative provides less noise for 

a relaxing day out at your local park or the great 

outdoors. The Radian is constructed from durable 

Z-FoamTM for the perfect balance of weight and 

durability. Its design boasts a large 2-meter wingspan 

and plug-in wings for easy transportation and storage. 

The Radian comes equipped with a 480 brushless 

motor, SpektrumTM DX5e transmitter and AR500 full 

range receiver for the ultimate soaring experience.

The Radian’s large wingspan and elliptical dihedral 

design improves flight performance and visibility from 

the ground, while the 3-channel control allows for the 

ultimate in precision when controlling throttle, rudder, 

and elevator. With 2.4GHz radio technology, you can fly 

without worry or risk of interference. 

Lightweight Z-Foam construction also ensures durability, 

making repairs simple and quick. Of course, every 

ParkZone plane comes out of the box ready to fly. 

The Radian delivers the great looks and the immediate 

gratification ParkZone plane owners have grown to love, 

while Spektrum’s innovative radio technology provides 

you with the control and reliability required to keep you 

flying at the greatest heights. 

Radian Instruction Manual

FCC Statement 

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This 

device may not cause harmful interference, and (2) this device must accept any interference received, including 

interference that may cause undesired operation. 

Caution! 

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s 

authority to operate the equipment.

Instructions for Disposal of WEEE by Users in the European Union

This product must not be disposed of with other waste. Instead, it is the user’s responsibility to 

dispose of their waste equipment by handing it over to a designated collections point for the recycling 

of waste electrical and electronic equipment. The separate collection and recycling of your waste 

equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled 

in a manner that protects human health and the environment. For more information about where you 

can drop off your waste equipment for recycling, please contact your local city office, your household 

waste disposal service or where you purchased the product.
5 6

One of the most fascinating and interesting segments 

of RC flying is Soaring. Finding a thermal and rising 

without power to unlimited heights is both exhilarating 

and rewarding. Once the Radian is up to altitude, 

one will be able to soar for hours relying only on 

thermal currents and wind to stay aloft. With the current 

trend towards an eco-friendly society, thermal soaring 

is free energy and fits well with the environmentally 

conscious consumer. 

Gliders were actually man’s first step to powered flight. 

The Wright brothers used gliders extensively to gather 

the much needed flight data that allowed them to 

eventually achieve powered flight. In essence, a glider 

is defined by the fact it continually descends. NASA 

space shuttles are in fact gliders by definition. Many of 

the troop carriers in World War II were also classified 

as gliders. Often gliders are confused with sailplanes, 

yet they have completely different functions. A sailplane 

is similar to a glider, however, there is one primary 

difference. A sailplane can actually soar—meaning it 

can rise above its initial launch height. 

In the late 1920s and early ’30s, Germany led the 

world with sailplane designs. This was partly due to 

restrictions placed on them from World War I, when 

they could not produce powered aircraft. Due to this, 

some wonderful innovations in sailplane designs were 

made, and some argue that it was this period that led 

to our current sailplane designs and theories. With 

modern sailplane designs, it is not uncommon for fullsize sailplanes to stay aloft for up to 8 hours and cover 

1000 miles while averaging over 100 mph. Smaller 

model sailplanes can fly for long periods using similar 

flight theories that full-size sailplanes use. If you have 

never experienced thermal soaring with a sailplane 

before, you’re really going to enjoy the Radian’s great 

soaring capabilities and experience the wonderful sport 

of RC thermal soaring.

What Are Thermals?

The first step to thermal flying is to have a basic 

understanding of what thermals are and how they 

work. If you have some concept of how a thermal 

works it will help you know where to search for them. 

A thermal is basically rising air. The temperature of 

the ground is not consistent. Different textures, colors 

and even weather conditions can cause uneven ground 

temperature. The warmer ground temperatures heat 

up and form a warm air bubble. At this stage, the 

bubble will hug the ground until something breaks the 

surface tension to release it, much like a soap bubble 

breaking away from the water’s surface. Once tripped, 

perhaps by a tree line or building, the thermal bubble 

then rises up, continuing to gain energy until it is fully 

developed many thousands of feet above. Thermals are 

typically stronger later in the day because the ground 

has had more time to generate heat. There are still 

thermals in the morning and evening, but they behave 

differently. Morning thermals are very narrow, meaning 

they have a small diameter, and do not typically go 

very high (20–400 feet). However, there are many small 

thermals in the morning, and it is recommended that 

you learn at this time of the day. Morning thermals are 

very defined yet are safe, as they typically don’t go too 

high and are not as violent as fully developed thermals. 

Another benefit is there are many smaller thermals 

close together in the morning and this will allow 

you to hop from one thermal to another with ease. 

Evening thermals are typically large warm air masses, 

meandering through the sky. They are usually very 

smooth with soft edges. The middle of the day (noon to 

4 p.m.) is when the thermals are at their strongest. 

The downside is that with every thermal there is also 

sink. Sink is the surrounding air that is left by the 

thermal leaving the ground. Typically sink is on the 

upwind side of the thermal. Sink is created when the 

warm air has been displaced; colder descending air will 

fill the area when the warm air has receded. Sink is not 

necessarily a bad thing—because where there is sink 

there is also lift close by. The trick is to find lift before 

you have to land.

How to Catch a Thermal

Always have a planned search pattern when looking for 

thermals. Even the most seasoned thermal competition 

pilot will have a search plan before launching. This is 

one of the basics of thermal flying. If you have a plan, 

based on good sound thermal logic, chances are you 

will more than likely find a thermal.

Thermals don’t typically stay in the same location for 

long, so maintaining a consistent pattern is important 

to ensure as much ground as possible is covered 

before landing. Many people just fly straight upwind. 

Working in an “S” pattern will increase the searched 

surface. Keep working the Radian upwind to cover a lot 

more sky for the same loss of height. Also, be on the 

lookout for ground markers. Although thermals cannot 

be seen, things that identify them can. Wind direction 

and velocity are great thermal indicators. Often the 

colder descending air filling in the hole that the thermal 

created when it left the ground will be a good indication 

as to where thermals may be. If the wind has a distinct 

change of direction, there is a good chance of a nearby 

thermal. The same would apply if the wind shifted to 

blow from the right. There would be a good chance the 

thermal would be to the left and slightly behind you. 

If you feel the wind strength increase, yet it continues 

blowing straight into your face, then the thermal is 

directly behind you. Finally, if the wind reduces in 

velocity, or even stops from a steady breeze, then 

the thermal is either ahead of you or right above you. 

Basically the thermal will be in the direction that the 

wind is blowing towards. Always pay attention to the 

general wind direction and look for changes in both 

its direction and velocity as signs for thermals. Other 

ground signs are birds. Many birds are capable of 

soaring, and you will often see them soaring on the 

thermals. Before launching, always check for birds. 

Pay close attention to how they are flying or if they are 

flapping hard—chances are they are also looking for 

lift. If they are soaring without flapping, then there is 

a good chance they are in lift. Birds also like to feed 

on small insects. As thermals initiate from the ground, 

often they will suck up small insects into the air. Birds 

will often feed on these insects and indicate another 

sign that there is lift. If you see birds flying in circles, 

almost in a feeding frenzy, there is a chance that lift 

is in their proximity. Another idea that works well is to 

fly over areas that are darker. Often a freshly plowed 

field, a parking lot, dirt—anything with a dark color will 

generate more heat—could also be a good source of 

generating thermals. One little test you may like to do is 

to paint various colors on a sheet of paper and place it 

in the sun. After 30 minutes or so, go and check which 

colors have created the most heat. Once you know 

what colors make the most heat, look for natural areas 

on the ground that match these colors and use those 

as locations for thermal hunting. 

What to Do When You Find a Thermal

The first thing one needs to be absolutely sure of is that 

a lift has truly been found. Often a sailplane may find 

what is called a stick thermal, meaning you may have 

been carrying some additional speed and the model 

will climb by pitching upward. One of the best signals 

when the model is truly in lift is it will slightly speed up 

and the nose of the aircraft will be down slightly. The 

model will feel more agile and responsive. Once lift is 

found, start circling in a moderate circle (50–75 foot 

radius). Then determine the size of the thermal. If the 

Radian drops on one side of the thermal and is more 

buoyant on the other as it circles, it has reached the 

boundary of the thermal. The parameters of most 

thermals are clearly marked by the downward flowing 

air. The center has fast rising air and the outside has 

downward rolling air (often called the edge of the 

thermal or the thermal wall). In the middle of the day 

when thermals are at their strongest, the thermal wall 

can be very distinct and violent, yet in the morning and 

late evening they are much softer. The objective is to 

make sure one is completely inside the thermal. This 

is called centering or coring the thermal. You will need 

to constantly make adjustments to keep in the center 

of the thermal. Maintain climb all the way around each 

360-degree circle. Often, especially if it is a windy day, 

thermals will drift with the wind. Most will travel directly 

downwind. One thing to remember is your Radian will 

also drift with the wind, especially when circling, so 

once the core of the thermal is established, the Radian 

will naturally drift with the thermal. One mistake people 

make is they don’t allow their model to drift with the 

thermal, hence falling out of the front or side of the 

thermal as it drifts downwind. 

Slope and Alpine Lift

Another form of soaring is slope lift. This lift is caused 

by wind rushing over a hill, cliff or any solid land mass 

that has more than 30 degrees of slope. As the air hits 

the hill or slope, it is redirected in an upward motion, 

thus creating lift. The best example of this is hang 

gliders that are soaring on the cliff faces. They maintain 

flight by soaring on the updrafts created by the sea 

breezes hitting the cliffs and creating what is known as 

slope lift. This sort of soaring is a lot of fun with your 

Radian, as you can always motor back to a safe landing 

if the lift falls away. The important thing to understand 

with slope-type lift is the wind must be almost directly 

blowing up the face of the hill or slope. Any more than 

a 20-degree variation may cause more turbulence than 

actual lift.

Alpine soaring has been popular in Europe and is also 

becoming popular in the US. It is the extreme end of 

thermal soaring. As thermals develop deep on the 

valley floor, they rise up the mountainside reaching their 

climax at the top of the mountain. This is often marked 

by a strong breeze blowing at the top of the mountain, 

which is in fact a fully developed thermal. One of the 

benefits of the Radian is that it has power assistance. 

Even though it does have an electric motor that will 

allow quite a steep climb, the primary purpose of the 

motor is a launch device so if the lift does go away, the 

Radian can motor back to a safe landing point.

We hope you enjoy your Radian and, more importantly, 

experience the art of thermal soaring. As this may 

be your first electric-powered sailplane, we hope this 

document has given you the basic ingredients to 

enhance your enjoyment with this wonderful product. 

We wish you all the best and happy thermal hunting.

Simple Soaring
7 8

Step 1

Install Transmitter Batteries

1. Install the 4 new AA batteries (supplied) into the 

transmitter, observing proper polarity.

2. Turn the switch on and check for the glowing 

green LED to ensure the batteries have been 

installed correctly.

3 Replace the transmitter batteries when the low 

battery alarm sounds and the LED lights begin 

to flash.

SpektrumTM DX5e Radio System

Your ParkZone Radian is equipped with the revolutionary 

Spektrum 2.4GHz DSM2TM radio system. This radio 

system allows you to fly with the confidence of knowing 

you will be safe from interference. 

For more details regarding the Spektrum DX5e radio 

system, please see the dedicated DX5e manual 

included with your Radian.

Transmitter Features: The following statement applies 

to the receiver (in the USA).

This device complies with part 15 of the FCC rules. 

Operation is subject to the following two conditions:

1. This device may not cause harmful interference. 

2. This device must accept any interference received, 

including interference that may cause undesirable 

operation.

Changes or modifications not expressly approved by 

the party responsible for compliance could void the 

user’s authority to operate the equipment.

On/Off Switch

Reversing Switches

Trainer Port

Channel 5 Switch

Throttle and

Rudder Stick Aileron and

Elevator Stick

Rudder Trim

Elevator Trim

Throttle Trim

Aileron Trim

HI/LO Rate Switch

Charge Jack

Trainer Switch

Mix Switch

Antenna

Mode 2

On/Off Switch

Reversing Switches

Trainer Port

Channel 5 Switch

Throttle and

Aileron Stick

Rudder and

Elevator Stick

Elevator Trim

Throttle Trim

Aileron Trim

RudderTrim

HI/LO Rate Switch

Charge Jack

Trainer Switch

Mix Switch

Antenna

Mode 1
9 10

Step 3

Attaching the Wing

In order to attach the wing of your Radian, please follow 

these simple instructions:

1. Locate the wing spar, as well as the left and right 

wing panels.

2. Slide the wing spar into the socket located in either 

the left or right wing panel. Confirm the wing spar 

is fully seated in the socket.

Note: Use caution when inserting the wing spar into 

the sockets of the left and right wing panels. Pushing 

too hard will damage the wing panels.

3. Slide the wing spar and panel through the opening 

in the fuselage. Slide the wing panel into the 

fuselage, making sure it is fully seated.

4. Slide the opposite wing panel onto the wing spar. 

Press the remaining wing panel into the fuselage 

until it is fully seated. The wing panels are keyed 

to “lock” when the wing is installed.

Step 2

Charging the Flight Battery

The Radian comes with a 12V 2-3 cell DC balancing 

charger and 3S 11.1V 1300mAh Li-Po battery. 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.

DC Li-Po Balancing Charger Features

• Charges 2- and 3-cell Lithium Polymer 

battery packs

• Automatically detects incorrect cell count selection

• Simple single push-button operation

• LED charge status indicator

• LED cell balance indicator

• Audible beeper indicates power and charge status

• 12V accessory outlet input cord

Specifications

• Input power: 12V DC, 2A

• Charges 2- to 3-cell Li-Po packs with minimum 

capacity of 300mA

• Variable charge rates from 300mAh to 2 amps

3S 11.1V 1300mAh Li-Po Battery Pack

The ParkZone 3S Li-Po battery pack features a 

balancing lead that allows you to more safely charge 

your battery pack when used with the included 

ParkZone Li-Po balancing charger.

To Complete the Charging Process

1. Attach the input cord of the charger to the 

appropriate power supply (12V accessory outlet), 

or use the HBZ6513 (optional) and attach to 12V 

AC power supply. Once your charger has been 

correctly powered up, there will be an approximate 

3-second delay and then you will hear an audible 

“beep” and the green (ready) LED will flash.

2. Refer to the chart below to select the appropriate 

charge rates:

Note: When charging the included 1300mAh battery, 

set the charge rate dial to 1.3A or lower. Selecting 

a charge rate higher than 1x battery capacity may 

cause a fire.

3. Select the proper number of cells that you will be 

charging, either 2 or 3 cells. In the case of the 

1300mAh battery included with the Radian, you will 

select 3 cells.

4. Locate the safety charge lead on the battery pack. 

The charge lead of a 3-cell Li-Po battery will plug 

into the larger 4-pin port on the bottom right of 

the charger. A 2-cell pack will need to plug into the 

3-pin port on the bottom left of the charger. Once 

the battery is properly plugged into the correct 

port, it will beep 3 times if it is a 3-cell, and twice if 

it is a 2-cell pack. Once this is done, you are ready 

to proceed to charge the battery pack.

5. Push the start button to begin the charging 

process. Once this is done, the charger will make 

an audible beep that matches the cell count, and 

then the red (charge) LED will begin to flash. Do 

not adjust the current once the charger has begun 

to charge.

Note: At times, the green LED may also flash during 

the charging process, indicating that the charger is 

balancing one or more of the cells at the same time 

it is charging the battery pack. When this is occurring, 

the red and green LEDs will both be flashing. It will 

not always be necessary for the cells to be balanced.

6. When the battery pack is fully charged, you will 

hear an audible beep for about 3 seconds, and the 

green LED will be solid. Always unplug the battery 

from the charger immediately upon completion. 

Failure to do so could cause a fire.

300—400mAh 300mAh

500—1000mAh 500mAh

1000—1500mAh 1A

1500—2000mAh 1.5A

2000mAh + 2.0A

BATTERY CAPACITY MAX. CHARGE RATE 
11 12

Note: To make trim adjustments to the elevator or 

rudder:

a. Turn on the transmitter.

b. Plug the fully charged 11.1V 1300mAh battery into 

the ESC.

c. Use elevator or rudder trim of the transmitter by 

moving the trim up or down to achieve the tail to be 

at neutral when the gimbal is also at neutral. If these 

changes are not sufficient, center the transmitter 

elevator or rudder trims. Loosen the spool from the 

control horn and move the control surface back to 

neutral. Re-tighten the spool.

Warning: Always keep hands and all objects 

away from the propeller in case the motor is 

engaged. A moving propeller can cause severe

injury and damage.

Attaching the Horizontal Stabilizer

1.Locate the horizontal stabilizer.

2.Slide the horizontal stabilizer through the slot 

between the fuselage and the rudder. Make 

sure the control horn installed in the elevator will 

properly align with the pushrod exiting the left side 

of the fuselage.

3.When you are certain the tail is centered correctly, 

use the tape provided to properly secure the 

horizontal stabilizer to the fuselage as shown. Use 

the tape on the top and bottom of each side of the 

tail (total of 4 applications).

4.Turn on the transmitter, confirming the throttle stick 

is in the full down/idle position. 

5.Remove the canopy from the fuselage (attached 

with magnets). Plug the blue EC3 connector 

installed on the battery into the EC3 device 

connector installed on the speed control.

6.Install the pushrod through the hole in the keeper. 

Move the elevator to the neutral position and 

tighten the keeper. The pushrod keeper comes 

pre-installed in the outermost hole of the control 

horn. It is recommended to fly the Radian with the 

pushrods installed in the default positions until you 

become more comfortable with the controls.

Step 4 Step 5

Connecting the Rudder Pushrod

1. Loosen the pushrod keeper installed on the rudder 

control horn. The pushrod keeper comes preinstalled one hole in from the outermost of the 

control horn.

2. Insert the rudder pushrod through the hole in the 

keeper. Move the rudder to the neutral position 

and tighten the keeper.

At this time, your Radian RTF is now complete.

Once pre-flight control and range checks have been

completed, the Radian is ready to fly.

Throttle

Elevator

Rudder

Left Stick 

Up/Down

Right Stick

Up/Down

Right Stick

Left/Right

Right Stick 

Up/Down

Left Stick

Up/Down

Right Stick

Left/Right

Mode 2 Mode 1
13 14

Step 7

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 such a way that the propeller does not come into 

contact with any part of their clothing or body.

To place the transmitter in range check mode, turn the 

transmitter on. Face the model with the transmitter in 

your normal flying position. Pull and hold the trainer 

switch while toggling the HI/LO Rate Switch four times. 

The LEDs will flash and the alarm will sound indicating 

the system is in range check mode.

1. One person holds the transmitter while the other 

person walks 30 paces away with the airplane.

2. Be sure the throttle is in the full down/idle position.

3. Plug the blue EC3 connector on the flight battery 

into the blue EC3 device connector installed on the 

speed control.

4. The propeller should spin quickly as soon as the 

throttle stick is advanced.

5. As the first person moves the transmitter controls, 

the other person watches to be sure the airplane’s 

motor and tail controls operate smoothly.

6. Once the range check has been completed, simply 

release the trainer switch and the transmitter will 

exit range check mode.

Step 6

Replacing the Propeller

1.Using a #0 screwdriver, remove the two screws 

installed in the front of the spinner. Remove the 

spinner cone and place it aside so it does 

not get lost.

2.Remove the pins installed in the prop blades. Set 

them aside with the spinner cone so they do not 

become lost.

3.Replace the prop blades and reinstall the pins. 

Make sure the pins are flush when installed, 

otherwise the spinner cone will not install.

4.Reinstall the spinner and confirm it is properly 

seated. Reinstall the screws in the front of the 

spinner.
15 16

Step 9

Step 10

30A ESC Instructions

The E-flite 30A Pro Brushless ESC is a lightweight, 

high-quality, efficient sensorless brushless electronic 

speed control with an integrated Switch-Mode BEC. It 

can operate without the need for a separate receiver 

battery to power your servos and receivers, saving 

you weight and complication. It is capable of up to 30 

amps continuous current when using 3- to 4-series 

Li-Po battery packs. You can drive up to 5 analog or 

4 digital sub-micro-sized servos with the BEC on any 

recommended input voltage. This ESC also features 

safe power arming along with advanced programmable 

features such as low voltage cutoff, braking, timing, 

throttle input range, and more, making this truly a ‘pro 

series’ speed control. 

Flying the Radian

Always choose a wide-open space for flying your 

ParkZone Radian. It is ideal for you to fly at an AMA 

sanctioned flying field. If you are not flying at an AMA 

approved site, always avoid flying near houses, trees, 

wires and buildings. You should also be careful to avoid 

flying in areas where there are many people, such 

as busy parks or school yards. Always follow local 

ordinances. We recommend only flying your Radian in 

light winds.

Prior to each flight

• Always make sure your Radian is properly trimmed.

• Always make sure the receiver, ESC and battery 

are properly secured.

• Always verify the propeller is on securely.

• Always ensure the servo reversing switches on the 

transmitter are set correctly.

• Always verify the dual rates switch is set at where 

you plan on flying. We recommend LOW rates for 

your initial flying. The Radian is very maneuverable 

on high rates and requires a lot of experience to 

handle properly.

Note: Your Radian 30A ESC comes preprogrammed 

with the brake on (for proper propeller folding), and 

the auto-cut set for 3S to match the included battery. 

For detailed programming instructions, please refer to 

the E-flite 30A ESC instruction sheet included with the 

Radian.

Note: ALWAYS assume the motor and the propeller 

are live. ALWAYS keep clear of the propeller at all 

times. The high rpm of the brushless motor can 

cause severe injury.

Center of Gravity Location

The center of gravity on your Radian should be located 

approximately 2-1/2 inches (63mm) behind the leading 

edge of the wing, when measured against the fuselage. 

This CG location has been determined with the 

ParkZone 1300mAh 11.1V Li-Po battery installed.

Note: The power system installed in the Radian is 

designed for climbing use in bursts (50% operating 

time or less). It is not intended to run full throttle for 

long periods of time. Not following this direction may 

result in reduced life of the power system. 

After flying, it is important to recharge the Li-Po 

battery pack included with the Radian. The Li-Po 

battery pack should always be stored at least 70% 

charged to prevent damage to the battery pack.

Step 8

Receiver

Your Radian comes equipped with the Spektrum AR500 

full range 2.4GHz DSM receiver. The following are the 

channels that are programmed in the receiver:

Bind Port:

Ch. 1: Throttle

Ch. 2: Aileron Port #1

Ch. 3: Elevator 

Ch. 4: Rudder

Ch. 5: Gear

Ch. 6: Aileron Port #2

Note: This port sends out a duplicate of the aileron 

signal.

Make certain you plug in the servo leads to the correct 

corresponding channel. Always perform a function 

check prior to flying to ensure this.

Binding

The Spektrum DX5e transmitter and AR500 receiver 

have been bound for you. Should you have a need 

to re-bind the AR500 to the DX5e or another DSM2 

transmitter, please follow the provided instructions.

1. Confirm the flight battery has been unplugged from 

the ESC and the transmitter is powered off. 

2. Insert the bind plug into Batt/Bind port on the 

AR500 receiver. 

3. Connect the blue EC3 connector on the battery 

to the ESC. The orange LED on the AR500 should 

begin to blink. 

4. Pull forward on the trainer switch located on the 

DX5e transmitter while powering on the transmitter. 

The transmitter will emit a series of beeps to 

confirm it has entered Bind mode. Release the 

trainer switch. 

5. The orange LED will turn to solid when the bind 

process has completed. Remove the bind plug 

from the AR500, disconnect the flight battery and 

power the transmitter off. 
17 18

Warranty and Follow-Up Procedures

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.

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 

productsupport@horizonhobby.com, 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 

Replacement Parts

Make sure that you keep your Radian flying. Replacement parts are available at your local hobby shop or from 

Horizon Hobby (www.horizonhobby.com). Please try your local hobby shop first. By supporting them, they will be 

there when you need them.

Item #: Description:

PKZ1017 Propeller Blades: Radian

PKZ1018 Prop Adapter & Spinner Set: Radian

PKZ1033 11.1V 1300mAH LiPo Battery

PKZ1040 2-3 DC LiPo Balancing Charger

PKZ1060 SV80 3-Wire Sub-Micro Servo 

PKZ4703 Decal Sheet: Radian

PKZ4713 Canopy: Radian

PKZ4714 Firewall w/Screws: Radian

PKZ4716 PKZ 480 Outrunner Brushless Motor: Radian

PKZ4720 Main Wing with Spar: Radian

PKZ4722 Pushrods with Clevis: Radian

PKZ4725 Tail Wing Set: Radian

PKZ4767 Bare Fuselage: Radian

SPMAR500 DSM2 5CH Sport Receiver

EFLA1030 30-Amp Pro SB Brushless ESC

Option Parts

Item #: Description:

EFLB12503S 11.1V 1250mAh Li-Po Battery

EFLC505 1-5 Cell Li-Po Charger with Balancer

HBZ6513 Alligator Clip: 12V Adapter

THP1205P AC to 12VDC, 5.0A Power Supply: EFLC505

SPMP300 Spektrum Neck Strap

SPM9525 Spektrum 1500mAh Ni-MH AA (4)

SPM9526 Spektrum 150mA Wall Charger 

Register your product and receive ParkZone updates at www.parkzone.com
19 20

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 ad-

dress, 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 the 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 be billed a minimum of 1⁄2 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.

United States:

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 Support Team

4105 Fieldstone Road

Champaign, Illinois 61822

Please call 877.504.0233 or e-mail us at 

productsupport@horizonhobby.com with any questions 

or concerns regarding this product or warranty.

United Kingdom:

Electronics and engines requiring inspection or repair 

should be shipped to the following address:

Horizon Hobby UK

Units 1-4 Ployters Rd

Staple Tye

Southern Way

Harlow

Essex CM18 7NS

United Kingdom

Please call +44 1279 641 097 or 

sales@horizonhobby.co.uk with any questions or 

concerns regarding this product or warranty.

Germany:

Electronics and engines requiring inspection or repair 

should be shipped to the following address:

Horizon Technischer Service

Otto Hahn Str. 9a

25337 Elmshorn

Germany

Please call +49 4121 46199 66 or 

service@horizonhobby.de with any questions or 

concerns regarding this product or warranty.