EN

Flight Trimming

Flying Field Choice

Elevator trim:

Only trim the aircraft at half throttle. When trimmed correctly, your aircraft 

will fly level at half throttle.

t When the aircraft’s nose drifts up or down while the elevator stick is at 

neutral (centered) position, push the elevator trim button by one or two 

“click” increments OPPOSITE the direction of drift. 

t Adjust trim so the aircraft flies straight and level when the elevator stick is 

neutral.

Rudder trim:

t When the aircraft drifts left or right while the rudder stick is at the neutral 

position (centered), push the rudder trim button by one “beep” increments 

OPPOSITE the direction of drift. 

t Adjust trim so the aircraft flies straight when the control stick is neutral.

Aileron trim:

t When the aircraft’s wing drops from level on one side while the aileron stick 

is at the neutral (centered) position, push the aileron trim button by one or 

two “click” increments OPPOSITE the direction of roll. 

t Adjust trim so the aircraft flies straight and level when the aileron stick is 

neutral.

You can return any trim setting to neutral by pushing the trim button 

until the beep signal sounds the middle position. Rising or descending 

tones sound when a switch is being pushed. 

TIP

Always choose a wide-open space for flying your aircraft. It is ideal for you to 

fly at an RC club flying field. 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, schoolyards, or soccer fields. Consult local 

laws and ordinances before choosing a location to fly your aircraft.

The site should:

t Have a minimum of 600 feet (183m) of clear space in all directions.

t Stay clear of pedestrians.

t Stay free of trees, buildings, cars, power lines or anything that could 

entangle your aircraft or interfere with your line of sight.

Remember, you aircraft at full throttle can cover ground quickly.

Plan on flying in an area that gives you more space than you think you need, 

especially with first flights.

Wind

600 feet

(183 m)

Stand here

Fly in this area

(upwind of pilot)

Make yourself familiar with your transmitter’s controls and the aircraft’s 

response before flying by performing the recommended Control Direction 

Test. The flight trim buttons are used to fine tune your aircraft for straight and 

level flight. When trimmed correctly, your aircraft flies a straight path with 

wings level, steadily climbs at full throttle, maintains a constant altitude at half 

throttle, and gently descends at low throttle. SAFE technology must learn your 

aircraft trim values to ensure consistent flight behavior. The trim values are 

learned when the receiver initially powers up. If you need to adjust the trim 

values in flight, set the aircraft to half throttle, make the necessary adjustments 

using the flight trim buttons, then keep the throttle position constant and the 

aileron, elevator, and rudder controls at the neutral position for 3 seconds. If 

you need more than 4 clicks on a trim button to make the aircraft fly straight 

and level at half throttle, you should mechanically adjust the control surfaces 

as shown in the control surface centering section.

IMPORTANT: For best results, trimming should always be done while flying 

directly into the wind using the Intermediate or Experienced Flight Modes.

Drifting down

Up Trim

Straight and Level

No Trim

Drifting Up

Down Trim

Straight and Level

No Trim

Drifting Left

Right Trim

Drifting Right

Left Trim

Straight and Level

No Trim

Drifting Left

Right Trim

Drifting Right

Left Trim

16
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Before each flying session, and especially with a new model, you should 

perform a range check. The DX5e incorporates a range testing system. Placing 

the transmitter in RANGE CHECK mode reduces the output power, allowing a 

range check.

1. Power on the transmitter for 5 seconds or more with the throttle stick and 

trim low. Power on the ESC Switch and keep the aircraft immobile for at 

least 5 seconds.

2. Face the model with the transmitter in your normal flying position. Push 

and hold the trainer switch while toggling the HI/LO Rate switch four 

times. The LEDs will flash and the alarm will sound. The system is in range 

check mode.

IMPORTANT: You must hold the trainer switch during the entire range check 

process. Releasing the switch will exit the range check mode.

3. With the system powered on and the model restrained on the ground*, 

stand 28 meters (90 feet) away from the model.

4. Move the transmitter rudder, elevator, aileron and throttle controls to ensure 

they operate smoothly at 28 meters (90 feet).

5. If control issues exist, do not attempt to fly. Refer to the contact table at the 

end of the this manual to contact Horizon Hobby product support. Also, see 

the Spektrum website for more information.

* In some aircraft, when the model is placed on the ground, the antenna(s) can 

be within inches of the ground. Close proximity of the antenna(s) to the ground 

can reduce the effectiveness of the range check. If you experience 

issues during the range check, restrain the model on a non-conductive stand 

or table up to 2ft (60cm) above the ground, then range check the system again.

28 meters (90 feet)

CAUTION: While holding the aircraft during the Range Test, always keep 

body parts and loose items away from the propeller. Failure to do so could 

cause personal injury.

Range Check

Flying Tips

Mode 2 Mode 1

1 3

2 4

t Start in beginner mode. As you learn and become more confident, change 

modes to advance.

t Resist the desire to fly at full throttle. Flying slowly at first allows for greater 

response time should anything go wrong.

t Always keep your aircraft in plain sight and up wind from you.

t Gain experience by first flying in large circles high off the ground. Once you 

feel comfortable, gradually progress to more advanced maneuvers.

t Do not attempt your first turn at low altitude. Higher altitudes allow for 

greater possibility of correction.

t Control stick movements are quite sensitive. Avoid pushing the control sticks 

to their endpoints until you become more familiar with your aircraft.

t To recover from a nose dive, decrease throttle and release the aileron 

stick. Pull the elevator stick back a small amount to pull up the nose of the 

aircraft.

t If you feel you have lost control pull and hold the Panic Switch.

9 Preflight Checklist

1. Charge flight battery.

2. Install flight battery in aircraft (once it has been fully charged).

3. Make sure linkages move freely.

4. Perform Control Direction Test with transmitter.

5. Make sure control surfaces are centered.

6. Find a safe and open area. 

7. Perform a radio system Range Check.

8. Plan flight for flying field conditions.

Keep immobile and 

out of the wind for 

5 seconds

17
EN

Ground Launch

Take off from the ground in Beginner mode is recommended for first flights, 

however, if the ground is not hard and level, get help to hand launch your 

aircraft.

1. Place the aircraft on its landing gear in a large, open area with smooth 

asphalt or concrete. The aircraft’s nose should point into the wind (in no 

greater than 5–7 mph (8–11km/hr) wind).

2. Stand behind your aircraft so you can see the rudder, ailerons and elevator.

3. Slowly move the throttle stick to FULL (100%) while gently pulling back 

on the elevator stick. Use the rudder to keep the aircraft’s nose pointed 

into the wind while it leaves the ground.

4. With a full battery in calm wind, your aircraft should rise off the ground in 

approximately 20 feet (7 meters).

Hand Launch

When learning to fly, get help to hand-launch your aircraft so you can 

concentrate on flying. If you must hand-launch the aircraft alone, hold 

the model in your dominant hand and the transmitter in your other hand. 

An optional neck strap (SPMP610, sold separately) can help you hold the 

transmitter.

1. Grip the aircraft under the fuselage, behind the rear landing gear. 

2. Carefully increase transmitter throttle control to FULL (100%).

3. Throw the aircraft slightly nose up and directly into the wind while 

keeping the wings parallel to the ground.

Takeoff

A good flying day is calm, with winds that are less than 5–7 mph 

(8–11km/h). Flying in faster winds than this could make flying difficult and 

result in a crash.

Wind near the ground can be less than the wind at the elevation where 

your aircraft flies. 

Flying Conditions

Wind

Wind

Hand launch in Beginner mode with Panic mode active. The technology 

will keep the aircraft level and in a climb. Obtain a safe and steady climb, 

then release the Panic Switch and climb to a safe altitude.

TIP

If the model is launched incorrectly, or is landing at a less than perfect 

attitude, pull and hold the Panic Switch. The SAFE technology can correct 

and help prevent a crash.

TIP

Take off in Beginner mode, increase throttle and keep the aircraft straight 

with the rudder control. The aircraft will rise from a level runway in a 

short distance. Obtain a steady climb to a safe altitude. Use Panic Switch if 

needed.

TIP

18
EN

The aircraft can fly for approximately 10 minutes on 

one battery charge. This flight time is based on the 

recommended flying style shown in this manual.

If the motor begins to pulse, the battery is getting low and 

you must land immediately.

1. Decrease the throttle and bring the aircraft’s nose into 

the wind. Do not be afraid to fully reduce the throttle 

and let the aircraft glide unpowered. 

2. While gliding into the wind, little or no elevator, aileron 

and rudder should be required. If you think the aircraft 

will land short of your target area, gently add a small 

amount of throttle. 

3. Once the aircraft is 1 meter (3–4 feet) above ground, 

slowly pull back the elevator stick. At this speed, this 

should result in a “flare”, causing the nose to rise without 

increasing altitude. The aircraft will lose speed so that 

the main gear lands first before the nose gear touches 

down. 

4. Allow the aircraft to come to a stop. 

CAUTION: Never catch a flying aircraft in your 

hands. Doing so could cause personal injury and damage 

to the aircraft.

NOTICE: If a crash is imminent, reduce the throttle and trim 

fully. Failure to do so could result in extra damage to the 

airframe, as well as damage to the ESC and motor.

NOTICE: Crash damage is not covered under warranty.

Landing

Wind

Wind

Pilot

Landing Pattern

1

1

2

2

3

3

4

4

Always 

decrease throttle at

propeller strike.

Flying

Let the aircraft climb at full throttle, into the wind, until the 

aircraft gets about 300 feet (91meters) above the ground, 

then decrease the throttle to half (50%). 

Try to make only small and gentle movements of the 

control sticks so you can see how the aircraft responds. 

Your aircraft is designed to climb and turn well. 

Flying with the nose pointed toward you is one of the 

hardest things to do when learning to fly. 

To practice piloting the aircraft with the nose pointed 

toward you, try flying in large circles high off the ground.

In Beginner mode, when properly trimmed, your 

aircraft will climb at full throttle without use of elevator.

TIP

50% throttle

Full throttle Reduced throttle

Landing in Beginner mode will give the student pilot a 

better chance for success.

TIP

19
EN

Post Flight

NOTICE: When you are finished flying, never keep the aircraft in the sun. Do not 

store the aircraft in a hot, enclosed area such as a car. Doing so can damage the 

foam.

9 Post Flight Checklist

1. Turn off ESC switch

2. Power off transmitter

3. Remove flight battery from aircraft

4. Recharge flight battery

5. Repair or replace all damaged parts

6. Store flight battery apart from aircraft and monitor the battery 

charge

7. Make note of flight conditions and flight plan results, planning for 

future flights

Service and Repairs

NOTICE: After any impact or replacement, always ensure the receiver is secure 

in the fuselage. If you replace the receiver, install the new receiver in the 

same orientation and manner as the original receiver or damage may result.

Thanks to the Z-FoamTM material in the wing and fuselage of this aircraft, 

repairs to the foam can be made using virtually any adhesive (hot glue, regular 

CA (cyanoacrylate adhesive), epoxy, etc). However, use only foam-compatible 

CA, foam-compatible accelerant or epoxy on the vertical and horizontal tail 

material. 

When parts are not repairable, see the Replacement Parts List for ordering by 

item number. For a listing of all replacement and optional parts, refer to the list 

at the back of this manual.

20
EN

Service of Power Components

Propeller Maintenance

CAUTION: Always keep hands away from the propeller when a battery is 

connected to the aircraft. When armed, the motor will turn the propeller 

in response to any throttle movement. Always disconnect the battery from the 

aircraft before handling the propeller.

t Follow steps 1 and 2 above to remove the propeller.

t Reassemble in reverse order. 

t Ensure the propeller size numbers face toward the front of the aircraft. Ensure 

the nut holds the propeller tightly without damaging the propeller.

NOTICE: If the propeller is not balanced, the aircraft may oscillate, causing the 

stabilization system to not operate correctly and/or decrease the life of the 

servos.

Horizon Hobby does not warrant replacement if the servos are used under 

extreme vibration or the stabilization system is used with an unbalanced 

propeller.

For more information, view John Redman’s propeller balancing video at 

www.horizonhobby.com.

Disassembly

1. Remove the spinner (A) from the spinner backplate (B), using a small 

amount of force.

2. Remove the hex nut (C), washer (D) and propeller (E) from the collet (F). 

A tool may be required to remove the hex nut. 

3. Carefully remove 3 screws (G) and the cowling (H) from the fuselage. 

4. Remove the collet from the motor (I).

5. Remove 4 screws (J) from the motor mount (K) and the fuselage.

6. Disconnect the motor connectors from the ESC connectors. 

7. Remove 4 screws (L) and 4 washers (M) from the motor mount and motor.

Assembly

Assemble in reverse order.

t Correctly align and connect the motor wire colors with the ESC wires.

t The propeller size numbers (11 x 8) must face out from the motor for correct 

propeller operation.

t A tool is required to tighten the hex nut on the collet.

t Ensure the spinner is fully connected to the spinner backplate for safe 

operation.

A

B

C D

E 

F 

I 

J 

K 

L 

M 

G 

G 

H 

We recommend removal of the propeller before any radio system setup 

or transport of your aircraft.

TIP

Wiring not shown.

21
EN

Receiver Setup

RECEIVER SETUP

No receiver setup is required for the included DX5e transmitter (or a similar 

transmitter with a 3-position Channel 5 switch).

Receiver setup is required for use of a transmitter with only a 2-position 

Channel 5 switch. Two switches (see illustration) must be moved on the 

receiver to select 2 of the 3 SAFE technology Flight mode options. 

Default for the included DX5e 

transmitter, enabling Channel 5 

3-position switch access to all 3 

SAFE modes.

Enable Channel 5 2-position 

switch access to Beginner and 

Experienced SAFE modes.

Enable Channel 5 2-position 

switch access to Intermediate

and Experienced SAFE modes.

Enable Channel 5 2-position 

switch access to Beginner and 

Intermediate SAFE modes.

IMPORTANT: We recommend flying with floats only once you have become 

able to fly comfortably in Experienced flight mode. 

Only use the floats if you are comfortable flying your aircraft and have 

repeatedly taken off, flown and landed with success. Flying off water poses a 

higher risk to the airplane because the electronics can fail if fully immersed in 

water. 

Always ensure the optional floats (ELFA550, sold separately) are secure on the 

fuselage and that the float rudder linkage is correctly connected and moves 

freely before putting the aircraft in 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.

To land this aircraft on water, fly the aircraft to a couple of feet off the surface 

of the water. Reduce throttle and add up elevator to flare the aircraft.

When taxiing, you must use throttle to move the aircraft forward, but steer with 

the rudder stick. The stick will turn both the aircraft rudder and a small rudder 

attached to the left float.

Avoid taxiing cross wind if there is a breeze, as this can cause the aircraft to 

flip over if wind gets under the upwind wing. Taxi 45 degrees into the direction 

of the wind (not perpendicular to the wind) and use aileron to hold the upwind 

wing down. The aircraft will naturally try to face into the wind when taxiing. 

Always fully dry the aircraft after landing on water.

CAUTION: Never go alone to get a downed model in the water.

CAUTION: If at any time water splashes in the fuselage while flying from 

water, bring the airplane to shore, open the battery hatch and immediately 

remove any water that may have gotten in the fuselage. Leave the battery 

hatch open overnight to let the inside dry out and to prevent moisture damage 

to the electronic components. Failure to do so could cause the electronic 

components to fail, which could result in a crash.

Water Takeoff and Landing Using the Optional Float Set

45o

Up Aileron

Down Aileron

Wind

Taxi 45 degrees into the direction of the wind.

22
EN

Optional Transmitter Setup

Buddy Box Setup

Transmitter Gear/

Ch 5 Aux 1 Flight Mode/ Panic Switch SAFE Flight Modes Supported

Panic Recovery 

Switch

SAFE Flight Mode 

Switch

Throttle, Aileron, Elevator and Rudder are in Normal position. 

DX4e (2pos) N N/A Default 2 pos Trainer ACT / AUX

DX4e (3pos) N N/A Default 3 pos Trainer Ch 5

DX5e (2pos) N N/A Default 2 pos Trainer Ch 5

DX5e (3pos) N N/A Default 3 pos Trainer Ch 5

DX6i R N *(Flap System) Norm  100 Land  100 2 pos Flaps GEAR / F MODE

DX6 N R *(Channel Input Config) Gear is B, Aux1 is switch i 3 pos Bind / i B

DX7 N N *(Flap System) Norm  100, Mid  100, Land  100 

(3 pos Aux1 switch–0 & 1 are normal 2 is panic) 2 pos Flap GEAR

DX7s N R *(Switch Select) Gear to INH, FM to INH, Flap to Gear, Trainer to Aux1 3 pos Trainer Flap

DX8 N R *(Switch Select) Gear to INH, FM to Gear, Flap to INH, Trainer to Aux 1 3 pos Trainer F MODE

DX9 N R *(Channel Input Config) Gear is B, Aux1 is switch i 3 pos Bind / i B

DX10t N R *(Channel Input Config) Gear is A, Aux1 is R stick 3 pos R-Tip A

DX18 N R *(Channel Input Config) Gear is B, Aux1 is switch i 3 pos Bind / i B

N = Normal R = Reverse

Master Transmitter Setup Slave Transmitter Setup

Master Transmitter Master Setup Slave Transmitter Slave Setup

DX4e (2pos) Factory Trainer Settings DX4e (2pos) Factory Trainer Settings

DX4e (3pos) Factory Trainer Settings DX4e (3pos) Factory Trainer Settings

DX5e (2pos) Factory Trainer Settings DX5e (2pos) Factory Trainer Settings

DX5e (3pos) Factory Trainer Settings DX5e (3pos) Factory Trainer Settings

DX6i Factory Trainer Settings DX6i Factory Trainer Settings

DX6 Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX6 Factory Trainer Settings

DX7 Trainer to Normal DX7 Factory Trainer Settings

DX7s Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX7s Factory Trainer Settings

DX8 Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX8 Factory Trainer Settings

DX9 Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX9 Factory Trainer Settings

DX10t Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX10t Factory Trainer Settings

DX18 Activate Programmable Master and insure 

channels Thro - Aux 1 are set to slave DX18 Factory Trainer Settings

If using any DSMX transmitter other than the included DX5e (3 pos gear 

switch) the radio will have to be configured correctly for the SAFE system to 

work properly. 

t SAFE Flight mode is selected using Channel 5 signal (high, middle, low)

t Panic mode is selected with Channel 6 signal (high, low)

Refer to your transmitter’s manual for more information about transmitter 

setup.

Refer to the Receiver Setup section of this manual to select the SAFE Flight 

modes you desire to use on a transmitter with only a 2 position Channel 5 

switch.

IMPORTANT: If using the buddy box option for training on a transmitter 

other than the included DX5e use these settings for a Master and or Slave 

Transmitter. Failure to do so will not allow SAFE technology Flight modes to 

work correctly.

IMPORTANT: If using the buddy box option the transmitter must be configured 

using the Transmitter Setup and Buddy Box setup charts.

23
EN

Please see your local or regional modeling association’s guidelines for proper, safe 

operation of your model aircraft.

Effective January 1, 2014

A. GENERAL

A model aircraft is a non-human-carrying aircraft capable of sustained flight 

in the atmosphere. It may not exceed limitations of this code and is intended 

exclusively for sport, recreation, education and/or competition. All model flights 

must be conducted in accordance with this safety code and any additional 

rules specific to the flying site.

1. Model aircraft will not be flown:

(a) In a careless or reckless manner.

(b) At a location where model aircraft activities are prohibited.

2. Model aircraft pilots will:

(a) Yield the right of way to all man carrying aircraft.

(b) See and avoid all aircraft and a spotter must be used when appropriate. 

(AMA Document #540-D.)

(c) Not fly higher than approximately 400 feet above ground level within 

three (3) miles of an airport, without notifying the airport operator.

(d) Not interfere with operations and traffic patterns at any airport, heliport 

or seaplane base except where there is a mixed use agreement.

(e) Not exceed a takeoff weight, including fuel, of 55 pounds unless in 

compliance with the AMA Large Model Aircraft program. (AMA 

Document 520-A.)

(f) Ensure the aircraft is identified with the name and address or AMA 

number of the owner on the inside or affixed to the outside of the 

model aircraft. (This does not apply to model aircraft flown indoors).

(g) Not operate aircraft with metal-blade propellers or with gaseous boosts 

except for helicopters operated under the provisions of AMA Document 

#555.

(h) Not operate model aircraft while under the influence of alcohol or while 

using any drug which could adversely affect the pilot’s ability to safely 

control the model.

(i) Not operate model aircraft carrying pyrotechnic devices which explode 

or burn, or any device which propels a projectile or drops any object 

that creates a hazard to persons or property.

 Exceptions:

 t 'SFF 'MJHIU GVTFT PS EFWJDFT UIBU CVSO QSPEVDJOH TNPLF BOE BSF

 securely attached to the model aircraft during flight.

 t 3PDLFU NPUPST 	VTJOH TPMJE QSPQFMMBOU
 VQ UP B (TFSJFT TJ[F NBZ

 be used provided they remain attached to the model during flight. 

 Model rockets may be flown in accordance with the National 

 Model Rocketry Safety Code but may not be launched from 

 model aircraft.

 t 0GmDJBMMZ EFTJHOBUFE "." "JS 4IPX 5FBNT 	"45
 BSF BVUIPSJ[FE UP

 use devices and practices as defined within the Team AMA 

 Program Document (AMA Document #718).

(j) Not operate a turbine-powered aircraft, unless in compliance with the 

 AMA turbine regulations. (AMA Document #510-A).

3. Model aircraft will not be flown in AMA sanctioned events, air shows or

model demonstrations unless:

(a) The aircraft, control system and pilot skills have successfully 

demonstrated all maneuvers intended or anticipated prior to the 

specific event.

(b) An inexperienced pilot is assisted by an experienced pilot.

4. When and where required by rule, helmets must be properly worn and 

fastened. They must be OSHA, DOT, ANSI, SNELL or NOCSAE approved or 

comply with comparable standards.

B. RADIO CONTROL

1. All pilots shall avoid flying directly over unprotected people, vessels, 

vehicles or structures and shall avoid endangerment of life and property 

of others.

2. A successful radio equipment ground-range check in accordance with 

manufacturer’s recommendations will be completed before the first flight 

of a new or repaired model aircraft.

3. At all flying sites a safety line(s) must be established in front of which all 

flying takes place (AMA Document #706.)

(a) Only personnel associated with flying the model aircraft are allowed at 

 or in front of the safety line.

(b) At air shows or demonstrations, a straight safety line must be 

 established.

(c) An area away from the safety line must be maintained for spectators.

(d) Intentional flying behind the safety line is prohibited.

4. RC model aircraft must use the radio-control frequencies currently allowed 

by the Federal Communications Commission (FCC). Only individuals 

properly licensed by the FCC are authorized to operate equipment on 

Amateur Band frequencies.

5. RC model aircraft will not operate within three (3) miles of any pre-existing 

flying site without a frequency-management agreement (AMA Documents 

#922 and #923.)

6. With the exception of events flown under official AMA Competition 

Regulations, excluding takeoff and landing, no powered model may be 

flown outdoors closer than 25 feet to any individual, except for the pilot 

and the pilot’s helper(s) located at the flight line.

7. Under no circumstances may a pilot or other person touch a model aircraft 

in flight while it is still under power, except to divert it from striking an 

individual. 

8. RC night flying requires a lighting system providing the pilot with a clear 

view of the model’s attitude and orientation at all times. Hand-held illumination systems are inadequate for night flying operations.

9. The pilot of a RC model aircraft shall:

(a) Maintain control during the entire flight, maintaining visual contact

 without enhancement other than by corrective lenses prescribed for 

 the pilot.

(b) Fly using the assistance of a camera or First-Person View (FPV) only 

 in accordance with the procedures outlined in AMA Document #550.

(C) Fly using the assistance of autopilot or stabilization system only in ac

 cordance with the procedures outlined in AMA Document #560.

AMA National Model Aircraft Safety Code

Federal Aviation Administration

Prior to flying, contact your local or regional modeling organizations for 

guidance and familiarize yourself with the current local rules and FAA 

regulations governing model aviation in your location.

More information about model aviation can be found at www.modelaircraft.org.

The Federal Aviation Administration can be found online at www.faa.gov.

24
EN

Problem Possible Cause Solution

Oscillation

Flying over recommended 

airspeed Reduce air speed

Damaged propeller or 

spinner Replace propeller or spinner

Imbalanced propeller Balance the propeller. For more information, view John Redman’s propeller balancing video at www.

horizonhobby.com

Motor vibration Replace parts or correctly align all parts and tighten fasteners as needed

Loose receiver Total system failure. Align and secure receiver in fuselage

Loose aircraft controls Tighten or otherwise secure parts (servo, arm, linkage, horn and control surface)

Worn parts Adjust gain to compensate for parts wear or replace worn parts (especially propeller, pivot points or 

servo)

Irregular servo rotation Replace servo

Trim is at extreme 

and aircraft does not 

fly straight or level

Trim is not at neutral If you adjust trim more than 4 clicks, adjust the clevis to mechanically remove trim

Channel 5 switch 

positions do not 

operate as described

In your transmitter, Channel 

5 servo is set to REVERSE In your transmitter, set Channel 5 servo to NORMAL

Troubleshooting Guide for SAFE Technology

Troubleshooting Guide

Problem Possible Cause Solution

Aircraft will not re- spond to throttle but 

responds to other 

controls

Throttle not at lowest position or throttle trim too high Reset controls with throttle stick and throttle trim at lowest setting

Throttle servo travel is lower than 100% Make sure throttle servo travel is 100% or greater

Throttle channel is reversed Reverse throttle channel on transmitter

Motor disconnected from ESC Make sure motor is connected to the ESC

Extra propeller noise 

or extra vibration

Damaged propeller and spinner, collet or motor Replace damaged parts

Propeller is out of balance Balance or replace propeller

Prop nut is too loose Tighten the prop nut

Spinner is not tight or fully seated in place Tighten the spinner or remove the spinner and turn it 180 degrees

Reduced flight time 

or aircraft under- powered

Flight battery charge is low Completely recharge flight battery

Propeller installed backwards Install propeller with numbers facing forward

Flight battery damaged Replace flight battery and follow flight battery instructions

Flight conditions may be too cold Make sure battery is warm before use

Battery capacity too low for flight conditions Replace battery or use a larger capacity battery

Aircraft will not Bind 

(during binding) to 

transmitter

Transmitter too near aircraft during binding process Move powered transmitter a few feet from aircraft, disconnect and reconnect 

flight battery to aircraft

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

The bind plug is not installed correctly in the bind port Install bind plug in bind port and bind the aircraft to the transmitter

Flight battery/transmitter battery charge is too low Replace/recharge batteries

Bind switch or button not held long enough during 

bind process

Power off transmitter and repeat bind process. Hold transmitter bind 

button or switch until receiver is bound

ESC is powered off Power on the ESC switch

Continued 

25
EN

Troubleshooting Guide

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 transferable 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, or (vi) Product not 

compliant with applicable technical regulations. 

OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES NO OTHER 

WARRANTY OR REPRESENTATION, 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 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 POSSIBILITY 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 liability. 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 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 Inquiry, 

Limited Warranty

Aircraft will not connect (after binding) 

to transmitter

Transmitter too near aircraft during connecting

process

Move powered transmitter a few feet from aircraft, disconnect and reconnect 

flight battery to aircraft

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

Bind plug left installed in bind port Rebind transmitter to the aircraft and remove the bind plug before cycling power

Aircraft bound to different model memory

(ModelMatchTM radios only) Select correct model memory on transmitter

Flight battery/Transmitter battery charge is too low Replace/recharge batteries

Transmitter may have been bound using different 

DSM protocol Bind aircraft to transmitter

ESC is powered off Power on the ESC switch

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 Do a check of wires and connections, connect or replace as needed

Transmitter is not bound correctly or the incorrect 

model was selected Re-bind or select correct model in transmitter

Flight battery charge is low Fully recharge flight battery

BEC (Battery Elimination Circuit) of the ESC is

damaged Replace ESC

ESC is powered off Power on the ESC switch

Controls reversed Transmitter settings are reversed Perform the Control Direction Test and adjust the controls on transmitter

appropriately

Motor power pulses 

then motor loses 

power

ESC uses default soft Low Voltage Cutoff (LVC) Recharge flight battery or replace battery that is no longer performing

Weather conditions might be too cold Postpone flight until weather is warmer

Battery is old, worn out, or damaged Replace battery

Battery C rating might be too small Use recommended battery

Aircraft control 

surfaces do not 

move after switch is 

turned on

Aircraft was moving during initialization Keep aircraft still during initialization

26
EN

Warranty and Service Contact Information

Country of Purchase Horizon Hobby Contact Information Address

United States of America

Horizon Service Center

(Repairs and Repair Requests) 

servicecenter.horizonhobby.com/Request- Form/

4105 Fieldstone Rd 

Champaign, Illinois, 61822 USA

Horizon Product Support

(Product Technical Assistance)

www.quickbase.com/db/

bghj7ey8c?a=GenNewRecord

888-959-2305

Sales sales@horizonhobby.com

888-959-2305

United Kingdom Service/Parts/Sales:

Horizon Hobby Limited

sales@horizonhobby.co.uk

+44 (0) 1279 641 097

Units 1–4 , Ployters Rd, Staple Tye

Harlow, Essex, CM18 7NS, United Kingdom

Germany Horizon Technischer Service

Sales: Horizon Hobby GmbH

service@horizonhobby.de

+49 (0) 4121 2655 100

Christian-Junge-Straße 1

25337 Elmshorn, Germany

France Service/Parts/Sales:

Horizon Hobby SAS

infofrance@horizonhobby.com

+33 (0) 1 60 18 34 90

11 Rue Georges Charpak

77127 Lieusaint, France

China Service/Parts/Sales: 

Horizon Hobby – China

info@horizonhobby.com.cn Room 506, No. 97 Changshou Rd.

+86 (021) 5180 9868 Shanghai, China 200060

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 warranty 

consideration. Be sure your name, address, and RMA number are clearly 

written on the outside of the shipping carton. 

NOTICE: Do not ship LiPo batteries to Horizon. If you have any issue with 

a LiPo battery, please contact the appropriate Horizon Product Support 

office.

Warranty Requirements 

For Warranty consideration, you must include your original sales receipt 

verifying the proof-of-purchase date. Provided warranty conditions have 

been met, your Product will be serviced or replaced free of charge. Service or 

replacement 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 estimates will be billed a minimum of 1⁄2 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. 

ATTENTION: Horizon service is limited to Product compliant in the 

country of use and ownership. If received, a non-compliant Product will 

not be serviced. Further, the sender will be responsible 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 noncompliant Product for a period of 60 days from notification, after which it 

will be discarded.

27
EN

Declaration of Conformity 

in accordance with ISO/IEC 17050-1)

 

No. HH2013032603U1

Product(s): EFL Apprentice S 15e RTF

Item Number(s): EFL3100C, EFL3100CM1

Equipment class: 1

The object of declaration described above is in conformity with the 

requirements of the specifications listed below, following the provisions of the 

European R&TTE directive 1999/5/EC, EMC Directive 2004/108/EC and LVD 

Directive 2006/95/EC:

EN 300-328 V1.8.1 

EN 301 489-1 V1.9.2: 2012

EN 301 489-17 V2.1.1: 2009

EN 62311: 2008

EN 60950-1:2006+A11:2009+A1:2010+A12: 2011

EN 55022:2010 + AC:2011

EN 55024:2010

Signed for and on behalf of: 

Horizon Hobby, LLC

Champaign, IL USA

November 10, 2014

Declaration of Conformity 

in accordance with ISO/IEC 17050-1)

 

No. HH2014041401

Product(s): EFL Apprentice S 15e BNF

Item Number(s): EFL3180

Equipment class: 1

The object of declaration described above is in conformity with the 

requirements of the specifications listed below, following the provisions of the 

European R&TTE directive 1999/5/EC, EMC Directive 2004/108/EC and LVD 

Directive 2006/95/EC:

EN301 489-1 V1.9.2: 2012

EN301 489-17 V2.1.1: 2009

EN60950-1:2006+A11:2009+A1:2010+A12: 2011

EN55022:2010 + AC:2011

EN55024:2010

Signed for and on behalf of: 

Horizon Hobby, LLC

Champaign, IL USA

April 14, 2014

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.

This product contains a radio transmitter with wireless technology which 

has been tested and found to be compliant with the applicable regulations 

governing a radio transmitter in the 2.400GHz to 2.4835GHz frequency range.

Antenna Separation Distance

When operating your Spektrum transmitter, please 

be sure to maintain a separation distance of at 

least 5 cm between your body (excluding fingers, 

hands, wrists, ankles and feet) and the antenna 

to meet RF exposure safety requirements as 

determined by FCC regulations. The illustration 

shows the approximate 5 cm RF exposure area 

and typical hand placement when operating your 

Spektrum transmitter.

IC Information 

This device complies with Industry Canada 

licence-exempt RSS standard(s). Operation is subject to the following two 

conditions: (1) this device may not cause interference, and (2) this device must 

accept any interference, including interference that may cause undesired 

operation of the device.

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.

Compliance Information for the European Union

FCC Information

Mike Dunne

Executive Vice President Product Divisions

Horizon Hobby, LLC

Mike Dunne

Executive Vice President Product Divisions

Horizon Hobby, LLC

28