HORIZON Air Tractor Instruction Manual

**Air Tractor 1.5m**

NOTICE: All instructions, warranties, and other collateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, visit www.horizonhobby.com or www.towerhobbies.com and click on the support or resources tab for this product.

Meaning of Special Language:
The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product:
WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superficial injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.
NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND little or no possibility of injury.

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury.
This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not use incompatible components or alter this product in any way outside of the instructions provided by Horizon Hobby, LLC. This manual contains instructions for safety, operation, and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.

AGE RECOMMENDATION:
Not for children under 14 years. This is not a toy.

WARNING AGAINST COUNTERFEIT PRODUCTS: If you ever need to replace your Spektrum receiver found in a Horizon Hobby product, always purchase from Horizon Hobby, LLC or a Horizon Hobby authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, LLC disclaims all support and warranty with regards to, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.

Safety Precautions and Warnings

As the user of this product, you are solely responsible for operating in a manner that does not endanger yourself and others or result in damage to the product or the property of others.

• Always keep a safe distance in all directions around your model to avoid collisions or injury. This model is controlled by a radio signal subject to interference from many sources outside your control. Interference can cause momentary loss of control.
• Always operate your model in open spaces away from full-size vehicles, traffic, and people.
• Always carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable battery packs, etc.).
• Always keep all chemicals, small parts, and anything electrical out of the reach of children.
• Always avoid water exposure to all equipment not specifically designed and protected for this purpose. Moisture causes damage to electronics.
• Never place any portion of the model in your mouth as it could cause serious injury or even death.
•  Never operate your model with low transmitter batteries.
• Always keep aircraft in sight and under control.
• Always use fully charged batteries.
• Always keep the transmitter powered on while the aircraft is powered.
• Always remove batteries before disassembly.
• Always keep moving parts clean.
•  Always keep parts dry.
•  Always let parts cool after use before touching.
• Always remove batteries after use.
•  Always ensure the failsafe is properly set before flying.
• Never operate aircraft with damaged wiring.
•  Never touch moving parts.

Quick Start Information

| Set up your transmitter using the transmitter setup chart
---|---

Transmitter Setup

| | Hi Rate|

Low Rate

Dual Rates| Ail|

20mm
20mm

| 14mm
14mm

Ele

| 10mm
10mm| 7mm

7mm

Rud| 32mm
32mm|

22mm
22mm

Flaps

| Full
=20mm|

Half
=10mm

Center of Gravity (CG)

| 65mm +/-5mm back from leading edge of wing at the fuselage
Flight Timer Setting|

4 minutes

Specifications

| | |
---|---|---|---
| Motor: BL10 800Kv Brushless outrunner (EFLM17552)| Installed| Installed
| ESC: 50AMP Brushless ESC (EFLA1050)| Installed| Installed
| Servos: 13 gram metal geared servos(2x SPMSA332) (4xSPMSA330R)| Installed| Installed
| Receiver: Spektrum™  AR637TA 6-Channel Sport Receiver (SPMAR637TA)| Installed| Required to
Complete
| Recommended Battery: 11.1V(3S)– 14.8V(4S) 2200–3200mAh 30C Li-Po (SPMX22003S30–SPMX32004S100) with EC3 or IC3 connector| Required to
Complete| Required to
Complete
| Recommended Battery Charger: 3–4 cell Li-Po battery balancing charger| Required to
Complete| Required to
Complete
| Recommended Transmitter: Full-Range 6 channel 2.4GHz with Spektrum DSMX® technology with adjustable Dual Rates.| Required to
Complete| Required to
Complete

As of this printing, you may be required to register with the FAA if you own this product. For up-to-date information on how to register with the FAA, please visit  https://registermyuas.faa.gov/. For additional assistance on regulations and guidance on UAS usage, visit knowbeforeyoufly.org/.

Box Contents

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register your product at https://www.horizonhobby.com/content/e-flite-rc

SAFE® Select Technology (BNF Basic)

The BNF Basic version of this airplane includes SAFE Select technology which can offer an extra level of protection in flight. Use the following instructions to make the SAFE  Select system active and assign it to a switch. When enabled, SAFE Select prevents the airplane from banking or pitching past predetermined limits, and automatic self-leveling keeps the airplane flying in a straight and level attitude when the aileron, elevator, and rudder sticks are at neutral. SAFE Select is enabled or disabled during the binding process. When the airplane is bound with SAFE Select enabled, a switch can be assigned to toggle between SAFE Select mode and AS3X mode. AS3X ®  technology remains active with no banking limits or self-leveling any time SAFE Select is disabled or OFF.

SAFE Select can be configured three ways;
• SAFE Select Off: Always in AS3X mode
• SAFE Select On with no switch assigned: Always in SAFE Select mode
• SAFE Select On with a switch assigned: Switch toggles between SAFE Select mode and AS3X mode

Preflight

1. Remove and inspect contents.

2. Read this instruction manual thoroughly.
3. Charge the flight battery.
4. Setup Transmitter using transmitter setup chart.
5. Fully assemble the airplane.
6. Install the flight battery in the aircraft (once it has been fully charged).
7. Check the Center of Gravity (CG).
8. Bind the aircraft to your transmitter.
9. Make sure linkages move freely.
10. Test the flap operation.
11. Perform the Control Direction Test with the transmitter.
12. Perform the AS3X Control Direction Test with the aircraft.
13. Adjust flight controls and transmitter.
14. Perform a radio system Range Test.
15. Find a safe open area to fly.
16. Plan flight for flying field conditions.

Model Assembly

Landing Gear Installation

1. Install the landing gear with the two included 3mm x 8mm screws.
2. Install the tail wheel assembly with the two 3 x 8mm screws.
3. Connect the springs between the rudder and tail wheel assembly.

Model Assembly Continued

Horizontal Stabilizer Installation

1. Slide the tail joiner tube into the fuselage.

2. Slide the horizontal tail halves onto the joiner tube.

3.  The retainers will click when the tail parts lock into position.
   

4. Insert the elevator pushrod into the outside hole on the elevator control horn.

5. Slide the pushrod keeper onto the end of the pushrod.

6.  Rotate the pushrod keeper onto the pushrod and snap it into position on the pushrod.

7. Locate the horizontal stabilizer brace mounting points on the bottom of the horizontal stabilizer and the sides of the fuselage

8. Secure the braces in position with the six 2mm x 8mm self-tapping screws.
   Disassemble in reverse order.

Wing Installation

1. Slide the wing tube into the fuselage.
2. Slide the wings onto the wing tube.
3.  Secure the wing halves into position from the bottom using the four included 3mm x 8mm machine screws.
   Disassemble in reverse order.

Propeller Installation

1.  Install the prop adapter, propeller, prop washer and nut.
2. Tighten the nut until the prop adapter grasps the propeller shaft securely.
3. Secure the spinner with a 3 x 8mm screw.
   Disassemble in reverse order.
   WARNING: Do not install the propeller until all system setups are complete. Failure to heed this warning could result in severe personal injury.

Receiver Installation (PNP)

The recommended receiver for this aircraft is the Spektrum AR637T. If you choose to install a different receiver, ensure that it is at least a 6-channel full range receiver. Refer to the manual of your chosen receiver for correct installation and operation instructions.

AR637T Installation
1. Slide the canopy latch (A) back and lift the back of the canopy to remove the canopy from the fuselage.
2. Attach the appropriate control surfaces to their respective ports on the receiver using the table at the right.
3. Using double-sided servo tape,(not included) mount the receiver to the flat area behind the battery compartment, as shown. The receiver should be mounted in the orientation shown, parallel to the length of the fuselage, with the label facing up and the servo ports facing the front of the aircraft. The orientation of the receiver is critical for all AS3X® and SAFE® technology setups.
CAUTION: Incorrect installation of the receiver could cause a crash.

Transmitter Setup (BNF)

IMPORTANT: After you set up your model, always rebind the transmitter and receiver to set the desired failsafe positions with the throttle stick and trim in the lowest position.  “The FLAP Channel (CH 6) controls the flaps. SAFE select may be on a dedicated switch or combined with the flap operation. When using one switch for both functions, the switch will enable SAFE for half and full flap positions and AS3X only when the flaps are up. See the SAFE Select Switch Designation section of this manual to assign the switch for SAFE select.
TIP: If you choose to use the FLAP Channel (CH 6) to operate both the flap and SAFE select, there is an extra step required during setup. The values need to be temporarily set to +100 and -100 and the speed set to 0 in the flap system menu. Complete the SAFE Select switch assignment process with these settings, and then change the flap system values back to the values listed in the setup table.

Dual Rates
Attempt your first flights in a Low Rate. For landings, use a high rate elevator.
NOTICE: To ensure AS3X technology functions properly do not lower rate values below 50%. If less control deflection is desired, manually adjust the position of the pushrods on the servo arm NOTICE: If oscillation occurs at high speed, refer to the Troubleshooting Guide for more information.
Expo
After the first flights, you may adjust expo in your transmitter.

Some of the terminology and function locations used in the iX12 and iX20 programming may be slightly different than other Spektrum AirWare™ radios. The names given in parenthesis correspond to the iX12 and iX20 programming terminology. Consult your transmitter manual for specific information about programming your transmitter.

• Flap programming values may vary slightly. For your initial flights use the recommended flap travel settings provided in the Flaps section and adjust the flap travel to your preference on subsequent flights.

Computerized Transmitter Setup

Start all transmitter programming with a blank ACRO model (perform a model reset), then name the model.
Set Dual Rates to| HIGH 100%            LOW 70%
Set Servo Travel to| 100%
Set Throttle Cut to| -100%
Set Aileron Expo to| High Rate 15%    Low Rate 5%
Set Elevator Expo to| High Rate 10%   Low Rate 5%
Set Rudder Expo to| High Rate 10%  Low Rate 5%
DXe| Refer to spektrumrc.com for the appropriate download setup.
DX6i| 1.  Go to the SETUP UST MENU
2.  Set MODEL TYPE: ACRO
3.  Go to ADJUST UST MENU
4.  Set TRAVEL: FLAPS 1’100      4-100
5.  Set FLAPS:             Norm +      0 Flap        Bev 0
LAND t-100 Flap                                                Elev 10
DX7S
DX8| 1.  Go to the SYSTEM SETUP
2.  Set MODEL TYPE: AIRPLANE
3.  Set WING TYPE: 1 AIL 1 FLAP
4.  Go to the FUNCTION UST
5.  Set FLAP SYSTEM: Choose Flap NORM: 100% FLAP
MID: 0% FLAP                          6% Elevator
LAND: -100% FLAP                10% Elevator
SPEED 2.0S: SWITCH = FLAP
DX6e
DX6 (Gen2)
DX7 (Gen2) DX8e
DX8 (Gen2)DX9
DX10t
DX18
DX20
iX12
iX20| 1.   Go to the SYSTEM SETUP (Model Utilities)’
2.   Set MODEL TYPE:AIRPLANE
3.   Set AIRCRAFT TYPE (Model Setup, Aircraft
Typey: WING: 1 AIL 1 FLAP
4.   Set CHANNEL ASSIGN (Model Setup, Channel AssIgn)t: (Default switch assignments with a new model setup) Flap (CH6): SWITCH D
5.   Go to the FUNCTION UST (Model Adjust)+
6.   Set FLAP SYSTEM:
SELECT SWITCH D: POS 0: 100% RAP
POS 1: 0% FLAP’                       6% Elevator
POS 2: -100% FLAP                10% Elevator
SPEED 2.0

Battery Installation and ESC Arming

Battery Selection
A 3S or 4S 2200–3200mAh LiPo battery is required. The Spektrum 3200mAh 14.8V 4S 50C LiPo battery (SPMX32004S50) is recommended. Refer to the Optional Parts List for other recommended batteries. If using a battery other than those listed, the battery should be within the range of capacity, dimensions, and weight of the Spektrum Li-Po battery packs to fit in the fuselage. Be sure the model balances at the recommended CG before flying.

1. Lower the throttle and throttle trim to the lowest settings. Power on the transmitter then waits 5 seconds.

2. Remove the battery hatch.

3. For added security, apply the loop side (soft side) of the optional hook and loop tape to the bottom of your battery, and the hook side to the battery tray.

4. Install the fully charged battery to the front of the battery compartment as shown below under Center of Gravity. Secure using the hook and loop straps.

5.  Connect the battery to the ESC. If you have not completed the bind sequence, do so at this time as outlined in this manual.”
   CAUTION: Always keep hands away from the propeller. When armed, the motor will turn the prop in response to any throttle movement.

6. Keep the aircraft immobile and away from wind or the system will not initialize.
   • The motor will emit a series of rising tones when the battery is connected, and then 3 or 4 even tones indicating the number of cells connected.
   • An LED will light on the receiver when it is initialized.

7. Reinstall the battery hatch.

ESC Tones: If the ESC sounds a continuous double beep after the flight battery is connected, recharge or replace the battery.

Continuous
slow single
tones| Abnormal throttle
signal| Transmitter and receiver not bound
Throttle lead damaged or not plugged
into receiver
Throttle lead plugged into receiver
backward

Continuous
rapid single
tones| Abnormal throttle
signal| Throttle stick not at low position
Throttle travel reduced below 100%
Throttle reversed
Continuous
double tones| Battery voltage is beyond
acceptable range| Throttle trim raised
Verify battery is a 3 or 4-cell LiPo

Center of Gravity

The Center of Gravity (CG) location is 65mm +/- 5mm back from the leading edge of the wing. Install the recommended battery to the front of the battery compartment for  the correct CG, as shown below.
CAUTION: Install the battery but do not connect it to the ESC while checking the CG. Personal injury may result.

Binding

General Binding Tips

• The included receiver has been specifically programmed for operation of this aircraft. Refer to the receiver manual for correct setup if the receiver is replaced.
• Keep away from large metal objects while binding.
• Do not point the transmitter’s antenna directly at the receiver while binding.
• The orange LED on the receiver will flash rapidly when the receiver enters bind mode.
• Once bound, the receiver will retain its bind settings for that transmitter until you re-bind.
• If the receiver loses transmitter communication, the failsafe will activate. Failsafe moves the throttle channel to the low throttle. Pitch and roll channels move to actively level the aircraft in flight.
• If problems occur, refer to the troubleshooting guide, or if needed, contact the appropriate Horizon Product Support office.

SAFE® Select Technology, Optional Flight Envelope Protection
The BNF Basic version of this airplane includes SAFE Select technology, enabling you to choose the level of flight protection. The SAFE model includes angle limits
and automatic self-leveling. AS3X mode provides the pilot with a direct response to the control sticks. SAFE Select is enabled or disabled during the binding process.
With SAFE Select disabled the aircraft is always in AS3X mode. With SAFE Select enabled the aircraft will be in SAFE Select mode all the time, or you can assign a switch to toggle between SAFE Select and AS3X modes. Thanks to SAFE Select technology, this aircraft can be configured for full-time SAFE mode, full-time AS3X mode, or mode selection can be assigned to a switch.
IMPORTANT: Before binding, read the transmitter setup section in this manual and complete the transmitter setup table to ensure your transmitter is properly programmed for this aircraft.
IMPORTANT: Move the transmitter flight controls (rudder, elevators, and ailerons) and the throttle trim to neutral. Move the throttle to low before and during binding. This process defines the failsafe settings. You can use either the bind button on the receiver case or the conventional bind plug to complete the binding and SAFE Select process.

Using Bind Button
SAFE Select Enabled

SAFE Select Enabled: The control surfaces cycle back and forth twice with a slight pause at a neutral position every time the receiver is powered on.

SAFE Select Disabled

Using Bind Plug
SAFE Select Enabled
SAFE Select Enabled: The control surfaces cycle back and forth twice with a slight pause at a neutral position every time the receiver is powered on.

SAFE Select Disabled

SAFE Select Disabled: The control surfaces cycle back and forth once every time the receiver is powered on.

SAFE Select Switch Designation

Once SAFE Select is enabled, you can choose to fly in SAFE mode full-time or assign a switch. Any switch on any channel between 5 and 9 can be used on your transmitter.
If the aircraft is bound with SAFE Select disabled, the aircraft will be in AS3X mode exclusively.
CAUTION: Keep all body parts well clear of the propeller and keep the aircraft securely restrained in case of accidental throttle activation. ”
IMPORTANT: To be able to assign a switch, first verify:
• The aircraft was bound with SAFE Select enabled.
• Your choice for the SAFE Select switch is assigned to a channel between 5 and 9 (Gear, Aux1-4), and travel is set at 100% in each direction.
• The aileron, elevator, rudder and throttle direction are set to normal, not reverse.
• The aileron, elevator, rudder and throttle are set to 100% travel. If dual rates are in use, the switches need to be in the 100% position.
See your transmitter manual for more information about assigning a switch to a channel.

Assigning a Switch
1. Power on the transmitter.
2. Power on the aircraft.
3. Hold both transmitter sticks to the inside bottom corners, and toggle the desired switch 5 times quickly (1 toggle = full up and down).
4. The control surfaces of the aircraft will move, indicating the switch has been selected.
Repeat the process to assign a different switch or to deactivate the current switch.
SAFE Select Switch Assignment Stick Positions
This example of the channel monitor shows the stick positions for assigning a switch, the switch selection on Aux2, and +/- 100% travel on the switch.

Dual Rates and Control Throws

Program your transmitter to set the rates and control throws based on your experience level. These values have been tested and are a good starting point to achieve a successful first flight. After flying, you may choose to adjust the values for the desired control response.

| Low Rate| High Rate
---|---|---
Aileron| 14mm| 20mm
Elevator| 7mm| 10mm
Rudder| 22mm| 22mm
Flap Travel| Half q = 10mm
Full q = 20mm

Measure the elevator travel on the elevator trim tabs

Control Surface Direction

Switch on the transmitter and connect the battery. Use the transmitter to operate the aileron, elevator, and rudder controls. View the aircraft from the rear when checking the control directions.
Ailerons
1. Move the aileron stick to the left. The right aileron should move down and the left aileron up, which will cause the aircraft to bank left.
2. Move the aileron stick to the right. The right aileron should move up and the left aileron down, which will cause the aircraft to bank right.
Elevators
3. Pull the elevator stick back. The elevators should move up, which will cause the aircraft to pitch up.
4. Push the elevator stick forward. The elevators should move down, which will cause the aircraft to pitch down.

Rudder
5. Move the rudder stick to the left. The rudder should move to the left, which will cause the aircraft to yaw left.
6. Move the rudder stick to the right. The rudder should move to the right, which will cause the aircraft to yaw right.

Control Horn and Servo Arm Settings

The table to the right shows the factory settings for the control horns and servo arms. Fly the aircraft at factory settings before making changes.
NOTICE:
If control throws are changed from the factory settings, the AR637T gain values may need to be adjusted. Refer to the Spektrum AR637T manual for adjustment of gain values.

AS3X Control Response Test (BNF)

This test ensures that the AS3X® control system is functioning properly. Assemble the aircraft and bind your transmitter to the receiver before performing this test.
1. Raise the throttle to any setting above 25%, then lower the throttle to activate AS3X technology. Activate throttle cut to prevent motor operation during this test.
CAUTION: Keep all body parts, hair, and loose clothing away from the propeller, as these items could become entangled.
2. Move the entire aircraft as shown and ensure the control surfaces move in the direction indicated in the graphic. If the control surfaces do not respond as shown, do not fly the aircraft. Refer to the receiver manual for more information. Once the AS3X system is active, control surfaces may move rapidly. This is normal. AS3X remains active until the battery is disconnected.

In-Flight Trimming (BNF)

During your first flight, trim the aircraft for level flight at 1/2 throttle with flaps up. Make small trim adjustments with your transmitter’s trim switches to straighten the aircraft’s flight path.
After adjusting the trim, do not touch the control sticks for 3 seconds. This allows the receiver to learn the correct settings to optimize AS3X performance. Failure to do so could affect flight performance.

Flying Tips and Repairs

Consult local laws and ordinances before choosing a flying location.
Getting Started
Before you fly, range checks the radio system. Refer to your specific transmitter instruction manual for range test information. When you first connect the battery to the airplane  AS3X will not be active. After advancing the throttle the first time, the AS3X system will be active and it is normal to see the control surfaces react to aircraft movement. For your first flights set your transmitter timer or a stopwatch to 3.5 minutes. Adjust your timer for longer or shorter flights once you have flown the model.
Takeoff
Face the aircraft into the wind for takeoff. Set your transmitter to low rates and drop the flaps to the takeoff position if you desire. Flaps are not required, but lowering them makes takeoffs shorter.
Gradually increase the throttle to full, and steer on the ground with the rudder as necessary to keep the aircraft rolling straight. Leave the elevator at neutral and allow the aircraft to accelerate up to speed on the ground, then pull up gently on the elevator to rotate for takeoff. When airborne, climb to a comfortable altitude and return the flaps to the level position.
Flying
For your first flights, climb to a moderate altitude and get comfortable with the aircraft while the battery is fresh. Get a feel for the aircraft’s low- speed performance with the flaps up and down at a safe altitude (approximately 100 feet or more), before being required to make your first landing attempt. Land the aircraft when the timer expires.
If at any time the motor power reduces, land the aircraft immediately to recharge the flight battery.
Landing
Plan to land the aircraft into the wind when possible. Fly downwind and turn into the wind to begin the approach. Lower the throttle and lower the flaps to the landing position (full down position.) Flaps will make the landing approach steeper and slower, and allow for a smoother landing. If there is a significant crosswind, only lower the flaps to the takeoff position (middle position) which will help maintain speed and better directional control during the approach. During the approach and descent, keep the wings level and the aircraft pointed into the wind. Keep the nose down and stay into the throttle to maintain speed and control during descent until the aircraft is ready to flare. As the airplane descends into the ground effect, fully lower the throttle, pull the nose up more to bleed off airspeed (flare), and the aircraft will settle on its wheels.  If landing on grass, hold full up elevator after touchdown and when taxiing to prevent the aircraft from nosing over. Once on the ground, avoid sharp turns until the plane has slowed enough to prevent scraping the wingtips.

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: After any impact, always ensure the receiver is secure in the fuselage. If you replace the receiver, install the new receiver in the same orientation as the original receiver or damage may result.
NOTICE : Crash damage is not covered under warranty.
NOTICE: When you are finished flying, never leave the aircraft in direct sunlight or in a hot, enclosed area such as a car. Doing so can damage the aircraft.
Low Voltage Cutoff (LVC)
When a Li-Po battery is discharged below 3V per cell, it will not hold a charge. The ESC protects the flight battery from over-discharging using Low Voltage Cutoff (LVC).  Before the battery charge decreases too much, LVC removes power supplied to the motor. Power to the motor reduces, showing that some battery power is reserved for flight control and safe landing. Disconnect and remove the Li-Po battery from the aircraft after use to prevent trickle discharge. Charge your Li-Po battery to about half capacity before storage. During storage, make sure the battery charge does not fall below 3V per cell. LVC does not prevent the battery from over-discharge during storage.
NOTICE: Repeated flying to LVC will damage the battery. Tip: Monitor your aircraft battery’s voltage before and after flying by using a Li-Po Cell Voltage Checker (SPMXBC100, sold separately).
Oscillation
For most flight maneuvers the aircraft should fly smoothly and normally, but it is possible in some flight conditions you may see oscillation (the aircraft rocks back and forth on one axis due to overcontrol). If oscillation occurs, refer to the Troubleshooting Guide for more information.
Repairs
Thanks to the EPO foam material in this aircraft, repairs to the foam can be made using virtually any adhesive (hot glue, regular CA, epoxy, etc). 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 end of this manual.
NOTICE: Use of CA accelerant on your aircraft can damage the paint. DO NOT handle the aircraft until the accelerant fully dries.

SAFE Select Flying Tips

When flying in SAFE Select mode the aircraft will return to level flight any time the aileron and elevator controls are at neutral. Applying aileron or elevator control will cause the airplane to the bank, climb, or dive. The amount the stick is moved will determine the attitude the airplane flies. Holding full control will push the aircraft to the pre-determined bank and roll limits, but it will not go past those angles. When flying with SAFE Select, it is normal to hold the control stick deflected with moderate to full aileron input when flying through a turn. To fly smoothly with SAFE Select, avoid making frequent control changes and don’t attempt to correct for minor deviations. Holding deliberate control inputs will command the aircraft to fly at a specific angle, and the model will make all corrections to maintain that flight attitude.

When flying with SAFE Select, a throttle will make the aircraft climb or descend. Full throttle will cause the aircraft to pitch up and climb slightly. Mid throttle will keep the airplane flying level. Low throttle will cause the airplane to descend slightly nose-down. Return the elevator and aileron controls to neutral before switching from SAFE Select mode to AS3X mode. If you do not neutralize controls when switching into AS3X mode, the control inputs used for SAFE Select mode will be excessive for AS3X mode and the aircraft will react immediately.

Differences between SAFE Select and AS3X modes
This section is generally accurate but does not take into account flight speed, battery charge status, and other limiting factors.

| | SAFE Select| AS3X
---|---|---|---
Control Input| Control stick
is neutralized| Aircraft will self-level| Aircraft will continue to fly at its present attitude
Holding a
small amount
of control| Aircraft will bank or pitch to a moderate angle and maintain the attitude| Aircraft will continue to pitch or roll slowly
Holding full
control| Aircraft will bank or pitch to the predetermined limits and maintain the attitude| Aircraft will continue to roll or pitch rapidly
Throttle| Full throttle: Climb
Mid throttle: Level flight
Low throttle: Descend nose-down| Throttle will not affect flight response.

Post Flight

1. Disconnect the flight battery from the ESC (Required for Safety and battery life).

2. Power OFF the transmitter.
3. Remove the flight battery from the aircraft.
4. Recharge the flight battery.
5. Repair or replace all damaged parts.
6. Store the flight battery apart from the aircraft and monitor the battery charge.
7. Make note of the flight conditions and flight plan results, planning for future flights.

Motor Service

CAUTION: Always disconnect the flight battery before performing motor service.
Disassembly
1. Remove the 3mm screw holding the spinner to the prop shaft, remove the spinner.
2. Remove the nut securing the propeller, remove the propeller and prop adapter.
3. Remove the two self-tapping screws holding the cowl onto the fuselage, remove the cowl.
4. Remove the four self-tapping screws holding the motor plate to the motor mount.
5. Remove the four 3mm machine screws holding securing the motor to the motor plate.

Assembly
Assemble in reverse order.
• Correctly align and connect the motor wire colors with the ESC wires.
• Install the propeller with the numbers facing out from the motor.
• Tighten the prop nut and spinner screw to secure the propeller into place.

Troubleshooting Guide AS3X

tighten fasteners as needed
Loose receiver| Align and secure receiver in fuselage
Loose aircraft controls| Tighten or otherwise secure parts (servo, arm, linkage, horn and control surface)
Worn parts| Replace worn parts (especially prop, nose cone, or servo)
Irregular servo movement| Replace servo and/or servo extension(s)
Inconsistent flight
performance| Trim is not at neutral| If you adjust trim more than 8 clicks, adjust the pushrod to remove trim
Sub-Trim is not at neutral| No Sub-Trim is allowed. Adjust the servo linkage
Aircraft was not kept immobile for 5
seconds after battery connection| With the throttle stick in lowest position. Disconnect battery, then reconnect battery and keep the aircraft still for 5 seconds
Incorrect response to the
AS3X Control Direction Test| Incorrect direction settings in the
receiver, which can cause a crash| DO NOT fly. Correct the direction settings (refer to the receiver manual),
then fly

Troubleshooting Guide

and throttle trim at the lowest setting
Throttle servo travel is lower than 100%| Make sure throttle servo travel is 100% or greater
The throttle channel is reversed| (With battery disconnected from aircraft) Reverse throttle channel on the transmitter
Motor disconnected from ESC| Make sure the motor is connected to the ESC
Excessive propeller noise or Excessive vibration| The damaged propeller, nose cone, collet, or motor| Replace damaged parts
Propeller is out of balance| Balance or replace the propeller
Propeller nut is too loose| Tighten the propeller nut
Reduced flight
time or aircraft
underpowered| Flight battery charge is low| Completely recharge flight battery
Flight battery damaged| Replace flight battery and follow flight battery instructions
Flight conditions may be too cold| Make sure the battery is not cold before use (Do not apply heat to the battery)
Battery capacity too low for flight conditions| Replace battery or use a larger capacity battery
Aircraft will not Bind (during binding) to the transmitter| Transmitter too near aircraft during the binding process| Move powered transmitter a few feet from aircraft, disconnect and reconnect flight battery to aircraft
Aircraft or transmitter is too close to a 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 plugin 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 the binding process| Power off transmitter and repeat bind process. Hold transmitter bind button or switch until the receiver is bound
Aircraft will not connect (after binding) to the transmitter| Transmitter too near aircraft during the connecting process| Move powered transmitter a few feet from aircraft, disconnect and reconnect flight battery aircraft
Aircraft or transmitter is too close to a 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 (ModelMatchW radios only)| Select correct model memory on the transmitter
Flight battery/Transmitter battery charge is too low| Replace/recharge batteries
The transmitter may have been bound to a different aircraft using a different DSM protocol| Bind aircraft to the transmitter
Control the surface does not move| The control surface, control horn, linkage, or servo damage| Replace or repair damaged parts and adjust controls
Wire damaged or connections lose| Do a check of wires and connections, connect or replace as needed
The transmitter is not bound correctly or the Incorrect airplanes were selected| Re-bind or select correct airplanes in the transmitter
Flight battery charge is low| Fully recharge flight battery
BEC (Battery Elimination Circuit) of the ESC is damaged| Replace ESC
Controls reversed| Transmitter settings are reversed| Perform the Control Direction Test and adjust the controls on the transmitter appropriately
Motor power pulses then motor loses power| ESC uses default soft Low Voltage Cutoff (LVC)| Recharge flight battery or replace the battery that is no longer performing
Weather conditions might be too cold| Postpone flight until weather is warmer
The battery is old, worn out, or damaged| Replace battery
Battery C rating might be too small| Use recommended battery

Float Installation (Optional)

Float Assembly
1. Install the 2 cross members (A) to the left and right floats as shown.
2. Install the front and rear float struts to the floats and secure the assembly together using the included 4 float plates (B) and 3mm x 25mm machine screws (C). The front strut has slightly more of an angle than the rear strut (Figure 1).
3. Install the front support members (D) as shown using the included self- tapping screws (E).

Float Assembly Installation

1. Align and mount the float set assembly to the bottom of the fuselage.
2. Secure the back section of the floats to the fuselage using the included bracket (F) and two 3mm x 10mm self-tapping screws (G).
3. Secure the front section of the floats using the two included 3mm x 12mm self-tapping screws (H) to secure the front support members to the bottom of the fuselage.
4. Attach the included wire from each float rudder (I) to the pull-pull horn (J) using the two included pins (K).
   Disassemble in reverse order.
   
   

Flying Off Water

Flying off water poses a higher risk because piloting errors or water conditions can cause the aircraft to become stranded. Only fly from the water when a level of comfort has been achieved flying the aircraft from the ground.
Pre-Flight
Ensure the optional floats are secure on the fuselage and the water rudders are correctly connected and operating with the main rudder before putting the aircraft in the water. Select an area to fly that does not have water currents, saltwater, or debris. Look around the flight area and be aware of trees, docks, buoys, or other obstacles. Always fly with a
spotter and avoid swimmers, boaters, people fishing, and people on the beach.
Taxiing
When taxiing, use low throttle settings and the rudders to steer. Hold up the elevator to help keep the rudders in the water and the noise of the floats above the surface. Steer into the wind when turning, and crab into the wind if crosswind taxiing is required. When turning or crabbing into the wind, apply an aileron against the wind to keep the upwind side of the wing down and prevent the aircraft from being flipped over. Do not apply down elevator when the airplane is taxiing or during the takeoff run.
On Step
When speed increases with the throttle, the floats will rise out of the water and begin to plane on the surface of the water, riding “on the step.” The floats will come on step at a  speed below flight speed, this is a transitional phase when the aircraft is not up to flight speed yet. This is considered a high-speed taxi. Do not attempt to take off as soon as the aircraft comes on the step. Use low to medium throttle and hold up the elevator to manage speed on the water during a high-speed taxi.

Takeoff
To lift off from the water, set the flaps to the takeoff position, hold up the elevator and accelerate the aircraft to bring it on the step. Relax the up elevator as the airplane comes on the step and accelerates to flight speed with full throttle. When the aircraft is traveling at a sufficient speed, pull back slightly on the elevator to rotate for liftoff.
Landing
To land on the water, set the flaps to the landing position, and fly into the wind. Reduce the throttle to a low setting but keep some power during the approach. As the aircraft settles into the ground effect, reduce the throttle fully and hold up the elevator to flare. Hold up the elevator through the touchdown and as the airplane decelerates on the water.
WARNING: Never attempt to retrieve a downed aircraft by swimming unless you are sufficiently trained and/or there is another person available to respond in the case of an emergency.
CAUTION: Have a plan for retrieval in the event the airplane becomes stranded. Never retrieve a downed model in the water alone.
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.
TIP: Use a fishing pole with the heavy line as a retrieval tool. Attach a tennis ball to the line, and throw the ball past a stranded aircraft to retrieve it.

Ski Installation (Optional)

Ski Installation

1. Remove the wheels and axles from the landing gear.
   

2. Place the springs on the axle retainers and thread the axles included with the skis into the axle retainers.
   

3. Mount the skis onto the axles and secure them in place with the 3mm nut.
   

4. Mount the brackets for the limit cords to the landing gear with the included 3x8mm screw.
   

5. Remove the tail wheel and install the tail ski as shown.

6. Loosen one of the mounting screws for the tail wheel bracket and tie the limit cord for the tail ski from the nose of the ski to the screw.

Tighten the bracket screw.

Replacement Parts

Optional Parts

Recommended Receivers (PNP)

AMA National Model Aircraft Safety Code

Effective January 1, 2018
A model aircraft is a non-human-carrying device capable of sustained flight within the visual line of sight of the pilot or spotter(s). It may not exceed the 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 related AMA guidelines,  any additional rules specific to the flying site, as well as all applicable laws and regulations.
As an AMA member I agree:

• I will not fly a model aircraft in a careless or reckless manner.
• I will not interfere with and will yield the right of way to all human-carrying aircraft using AMA’s See and Avoid Guidance and a spotter when appropriate.
• I will not operate any model aircraft while I am under the influence of alcohol or any drug that could adversely affect my ability to safely control the model.
• I will avoid flying directly over unprotected people, moving vehicles, and occupied structures.
• I will fly Free Flight (FF) and Control Line (CL) models in compliance with AMA’s safety programming.
• I will maintain visual contact of an RC model aircraft without enhancement other than corrective lenses prescribed to me. When using an advanced flight system, such as an autopilot, or flying First-Person View (FPV), I will comply with AMA’s Advanced Flight System programming.
• I will only fly models weighing more than 55 pounds, including fuel if certified through AMA’s Large Model Airplane Program.
• I will only fly a turbine-powered model aircraft in compliance with AMA’s Gas Turbine Program.
• I will not fly a powered model outdoors closer than 25 feet to any individual, except for myself or my helper(s) located at the flight line, unless I am taking off and landing, or as otherwise provided in AMA’s Competition Regulation.
• I will use an established safety line to separate all model aircraft operations from spectators and bystanders.

For a complete copy of AMA’s Safety Handbook please visit:100 [PDF]

Limited Warranty

What this Warranty Covers
Horizon Hobby, LLC, (Horizon) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship at the date of purchase.
What is Not Covered
This warranty is not 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, or (vii) use that violates any applicable laws, rules, or 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 ON 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, the 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 principles). 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, 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  https://www.horizonhobby.com/content/service-center-render- service-center. If you do not have internet access, please contact Horizon Product Support to obtain an 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 products 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 issues 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 ½ hour of labor. In addition, you will be billed for return freight. Horizon accepts money orders and cashier’s checks, as well as Visa, MasterCard, American Express, and Discover cards. By submitting any item to  Horizon for service, you are agreeing to Horizon’s Terms and Conditions found on our website http://www.horizonhobby.com/content /_service-center_render-service-center.
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 non-compliant Products for a period of 60 days from notification, after which it will be discarded.

Contact Information

United States

of America

| Horizon Service Center (Repairs and Repair Requests)| servicecenter.horizonhobby.com/RequestForm/| 2904 Research Rd Champaign, Illinois, 61822 USA
Horizon Product Support (Product Technical Assistance)| productsupport@horizonhobby.com
877-504-0233
Sales| websales@horizonhobby.com
800-338-4639
European Union| Horizon Technischer Service| service@hodzonhobby.eu| Hanskampring 9
D 22885 Barsbuttel, Germany
Sales: Horizon Hobby GmbH| +49 (0) 4121 2655 100

FCC Information

FCC ID: BRWTIARLGTNG1
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.

Supplier’s Declaration of Conformity
Air Tractor 1.5m BNF Basic with AS3X and SAFE Select
EFL16450/EFL16475
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.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off  and on, the  user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
  Horizon Hobby, LLC
  2904 Research Rd.,
  Champaign, IL 61822
  Email: compliance@horizonhobby.com
  Web: HorizonHobby.com

IC Information

CAN ICES-3 (B)/NMB-3(B)
IC: 6157A-TIARLGTNG1
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.

Compliance Information for the European Union

EU Compliance Statement:
EFL16450 Air Tractor 1.5m BNF BASIC; Horizon Hobby, LLC hereby declares that this product is in compliance with the essential requirements and other relevant provisions of the RED and EMC Directives.
EFL16475 Air Tractor 1.5m PNP; Horizon Hobby, LLC hereby declares that this product is in compliance with the essential requirements and
other relevant provisions of the EMC Directive.
A copy of the EU Declaration of Conformity is available online at: http://www.horizonhobby.com/content/support-render-compliance.
Operating Frequency
Band: 2404 – 2476 MHz
Max EIRP: 3dBm

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 make sure 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.

© 2020 Horizon Hobby, LLC.
E-flite, AS3X, DSM, DSM2, DSMX, Spektrum Airware, Bind-N-Fly, BNF, the Bind-N-Fly logo, Plug-N-Play, SAFE, the SAFE logo, ModelMatch,
and the Horizon Hobby logos are trademarks or registered trademarks of Horizon Hobby, LLC.
The Spektrum trademark is used with the permission of Bachmann Industries, Inc.
All other trademarks, service marks, and logos are the property of their respective owners.
US 9,056,667. US 8,672,726. US 9,753,457. US 10,078,329. US 9,930,567. US 10,419,970.
https://www.horizonhobby.com/content/e-flite-rc
EFL16450, EFL16475

References

• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• Home - Know Before You Fly
• Horizon Hobby Service Center
• Spektrum RC Transmitters and RC Electronics | Spektrum
• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• RC Airplanes and Helicopters, RC Cars and Trucks, RC Boats, RC Radios | Horizon Hobby
• RC Cars, RC Trucks, RC Airplanes, Model Trains, and Slot Cars at Tower Hobbies
• E-Flite | Horizon Hobby RC Airplanes and RC Airplane Accessories

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