E-flite EFL370001 RC Airplane Apprentice Instruction Manual

: June 9, 2024
: E-flite

Table of Contents

EFL370001 RC Airplane Apprentice
References
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EFL370001 RC Airplane Apprentice

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Instruction Manual Bedienungsanleitung Manuel d’utilisation Manuale di Istruzioni

EFL370001

EFL3750

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 towerhobbies.com and click on the support or resources tab for this product.
MEANING OF SPECIAL LANGUAGE The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product: WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superficial injury. CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury. NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND little or no possibility of injury.
WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury. This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not use with incompatible components or alter this product in any way outside of the instructions provided by Horizon Hobby, LLC. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.
AGE RECOMMENDATION: Not for children under 14 years. This is not a toy.
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, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.

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

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

· Never operate your model with low transmitter batteries.

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

· Always keep aircraft in sight and under control. · Always use fully charged batteries. · Always keep transmitter powered on while aircraft is powered. · Always remove batteries before disassembly. · Always keep moving parts clean. · Always keep parts dry. · Always let parts cool after use before touching. · Always remove batteries after use. · Always ensure failsafe is properly set before flying. · Never operate aircraft with damaged wiring. · Never touch moving parts.

it could cause serious injury or even death.

Apprentice STS 1.5m RTF Basic · BNF Basic

Registration
Register your product today to join our mailing list and keep up to date with product updates, offers and E-flite® news.

Specifications Wingspan Length
Weight

59″ (1500mm)
42.5″ (1080mm)
Without Battery: 50oz (1418g) With 3S 4000mAh Battery: 59.oz (1672g)

Table of Contents
Aircraft Components …………………………………………………………………………………. 4 Aircraft Assembly……………………………………………………………………………………… 5 Spektrum DXS Transmitter…………………………………………………………………………. 7 Flight Battery Installation, SAFE System and Electronic Speed Control (ESC) Arming…………………………………………………………………………………. 8 Center of Gravity (CG) ……………………………………………………………………………….. 9 Control Direction Test………………………………………………………………………………. 10 Before Your First Flight…………………………………………………………………………….. 10 Choose a Flying Field ………………………………………………………………………………. 11 Range Test…………………………………………………………………………………………….. 11 Flight Control …………………………………………………………………………………………. 12 Sensor Assisted Flight Envelope (SAFE) Technology Flight Modes……………………. 13 Preflight Checklist…………………………………………………………………………………… 14 Flying …………………………………………………………………………………………………… 14 Trimming the Aircraft ………………………………………………………………………………. 16 Post Flight……………………………………………………………………………………………… 17 Transmitter and Receiver Binding………………………………………………………………. 17 Flight Training ………………………………………………………………………………………… 18 Optional Landing Assist Sensor (LAS) Upgrade …………………………………………….. 19 Optional SAFE Plus GPS Upgrade ………………………………………………………………. 20 Optional Transmitter Setup……………………………………………………………………….. 29 Service and Repairs………………………………………………………………………………… 30 AS3X® System Trouble Shooting Guide……………………………………………………….. 32 Troubleshooting Guide ……………………………………………………………………………. 32 Replacement Parts………………………………………………………………………………….. 33 Recommended Parts……………………………………………………………………………….. 33 Glossary of Important Terms …………………………………………………………………….. 33 Optional Parts ………………………………………………………………………………………… 33 Hardware………………………………………………………………………………………………. 33 Important Federal Aviation Administration (FAA) Information…………………………… 34 AMA National Model Aircraft Safety Code……………………………………………………. 34 Limited Warranty ……………………………………………………………………………………. 35 Contact Information ………………………………………………………………………………… 35 FCC Information……………………………………………………………………………………… 36 IC Information ………………………………………………………………………………………… 36 Compliance Information for the European Union…………………………………………… 36

Included Equipment Transmitter Transmitter Batteries
Receiver
Flight Controller ESC Motor Propeller
Servos

SpektrumTM DXS 2.4GHz (SPMR1010) 4 AA Alkaline SpektrumTM DSMX SRXL2 Receiver with Connector Installed (SPM4650C) SpektrumTM Flight Controller (SPMA3230) 30-Amp 3S ESC with Telemetry (EFLA1030FB) 840Kv Brushless Outrunner 12-Pole Motor (EFLM7215) 11 x 8 Electric Propeller (EFLP11080E) (2) Aileron, 13g Micro Servo (EFLR7155) (1) Elevator, 13g Micro Servo (EFLR7155) (1) Rudder, 37g Standard Servo (EFLR7150)

Required Equipment Flight Battery Battery Charger

3S 11.1V 3200-4000mAh LiPo Battery with IC3® or EC3TM Connector
3-4S LiPo Battery Compatible

Optional Accessories SPMA3180 RFL1205 SPMWS2000
SPMXPSA300

Landing Assist Sensor (LAS) RealFlight Trainer Edition RC Flight Simulator WS2000 Wireless Simulator USB Dongle Smart G2 Powerstage Bundle with 3S 4000mAh Battery and S120 Charger

Completion Guide
Scan this QR code to see the Completion Guide for information on the recommended Powerstage battery and charger bundle. You can also view the Optional Parts list on the product page on www.HorizonHobby.com for more information on other compatible batteries, chargers and other items.

Required Tools

Completion Guide

· Phillips Screwdrivers (PH#0, PH#1)

EN
Aircraft Components
Typical Control Components

Control Horn

Retaining Sleeve

Pushrod

Clevis

Servo Arm Servo

Electronic Speed Control (ESC) ON/OFF Switch Receiver (Rx)

Aileron

Aileron Servo (EFLR7155)
Rudder and Nose Gear Servo (EFLR7150)

GPS Optional

Horizontal Stabilizer Elevator

Propeller (EFLP11080E)
Motor (EFLM7215) Nose Gear Assembly Canopy/Hatch Flight Battery Flight Controller
Aileron Servo (EFLR7155) Main Landing Gear Elevator Servo (EFLR7155) LAS Optional

Rudder

Vertical Stabilizer

Apprentice STS 1.5m RTF Basic · BNF Basic

Aircraft Assembly
We recommend reading each section of this manual before proceeding with assembly per the steps outlined. We also recommend watching the entire assembly video by scanning this QR code or using this URL: www.horizonhobby.cc/ApprenticeSTSassembly.

Landing Gear Installation
We recommend watching the “Landing Gear Installation” chapter/section of the assembly video by scanning this QR code or using this URL: www.horizonhobby.cc/ApprenticeSTSassembly.

Assembly Video

1. Lay the fuselage upside down on a flat surface.
2. Insert a screwdriver through the hole on the underside of Assembly Video
the cowl to loosen the set screw (A) in the nose gear steering arm.

3. Remove the alignment pin (B) from the nose gear steering arm hole and insert the nose gear (C) (flat spot facing forward) fully in the mount (D).

NOTE: The alignment pin is for transport and not required after the nose gear has been installed.
4. Fully tighten the set screw onto the flat spot of the strut.

5. Push together the main landing gear struts (E) together and insert the upper section into the slot in the fuselage as shown.

Tail Installation

We recommend watching the “Tail Installation”

chapter/section of the assembly video by

scanning this QR code or using this URL:

www.horizonhobby.cc/ApprenticeSTSassembly.

B A
E D
C
B C

Assembly Video
1. Insert the 2 pins (A) of the vertical stabilizer (B) through the holes of the horizontal stabilizer (C), press together firmly.
2. Install the tail assembly on the fuselage under the linkages as shown.
3. Carefully align the 2 pins of the tail assembly with the fuselage holes and press fit the assembly into place.
4. From the bottom of the fuselage, use two 2.5 x 15mm self tapping screws (D) to secure the tail assembly to the fuselage. Pay close attention to where the plastic base of the vertical stabilizer meets the horizontal stabilizer while tightening the screws. Only tighten as far as to seat the tail surfaces firmly.
IMPORTANT: Do not overtighten the screws. Overtightening may cause damage to the screws and attachment points.
5. Connect the respective clevises in the outermost holes in the rudder and elevator control horns.

Elevator Control Horn
Servo Arm

Rudder Control

Horn

Servo Arm

Clevis Retaining Sleeve Pushrod Clevis Retaining Sleeve Pushrod

2.5 x 15mm (2) Self Tapping Screw

EN
Wing Installation
We recommend watching the “Wing Installation” chapter/ section of the assembly video by scanning this QR code or using this URL: www.horizonhobby.cc/ApprenticeSTSassembly.
Assembly Video
The wing of the Apprentice STS is secured to the fuselage using six of the included rubber bands. This method of installation allows the wing to move, or separate from the fuselage in the event of a hard landing or crash, minimizing damage to the airframe. The use of more than six rubber bands is not recommended, as using additional bands may cause the wing to be held too securely to the fuselage.
1. Carefully apply the 2 strips of double-stick tape (A) to the root of the wing as shown. Remove the packing material from the wing tube and the tape from the ailerons. Assemble the wings on the carbon wing tube (B) so there is no gap. No epoxy is required to hold the wings together; however, if desired, epoxy may be used (instead of the tape) to adhere the wings to each other on the wing tube.
2. Ensure the wings are correctly aligned. Remove the backing from the double stick tape on the inside of each joiner. Install the narrow front leading edge joiner (C) and wide rear trailing edge joiner (D) in their respective slots on the wing as shown.
3. Connect the right and left aileron servo linkages to the outer hole of the respective control horns by using the included linkages and clevises.
4. Connect the left aileron servo connector to the servo extension labeled “AIL-L”, and connect the right aileron servo connector to the servo extension labeled “AIL-R”.
IMPORTANT: Ensure the aileron servo wires are not pinched between the wing and fuselage.
5. Install the wing on the fuselage.
CAUTION: DO NOT crush or otherwise damage the wiring when attaching the wing to the fuselage.
6. Install 6 rubber bands (F) on the front and back rods to complete the installation. Center the wing on the fuselage. Going from front to back over the wing, attach 6 rubber bands to secure the wing to the fuselage.
TIP: Install the first two bands diagonally, starting from the front pin to the rear pin on the opposite side of the fuselage. Install the last four bands starting from the front pin straight back to the rear pin on the same side of the fuselage.
7. Disassemble in reverse order.
We recommend removing the wing from the fuselage for transport and storage of your model. Before each flight, ensure the wing is centered, straight and secure on the fuselage.
TIP: Ensure the caps are secure on the ends of the rods. If needed, apply CA (cyanoacrylate adhesive) to secure a cap on the rod.

C
E F

A B
D

L-AIL R-AIL

Apprentice STS 1.5m RTF Basic · BNF Basic

Spektrum DXS Transmitter
Install the Transmitter Batteries
1. Remove the battery cover. 2. Install the included four AA batteries, noting proper polarity. 3. Reinstall the battery cover.
Low Battery Alarm
When the transmitter battery voltage drops below 4.7 volts, an alarm sounds and the voltage LEDs flash. Replace the batteries immediately. If the alarm sounds while flying, land your aircraft as soon as possible.
CAUTION: If using rechargeable batteries, charge only rechargeable batteries. Charging non-rechargeable batteries may cause the batteries to burst, resulting in injury to persons and/or damage to property.

Transmitter Switches and LEDs
Button A = Trainer/Bind/Panic Button: This button is used to control the Trainer, Bind and Panic Recovery Mode functions.
See the Flight Training section for information on using the transmitter as part of a “buddy box” training system.
See the Binding section for information on re-binding your transmitter and aircraft if necessary. The included transmitter comes bound to the receiver/aircraft from the factory, therefore binding is not typically necessary.
See the Sensor Assisted Flight Envelope (SAFE) Technology section for information about panic recovery mode. Switch F = Hi/Lo Rate Switch: This switch supports high and low rate functions on aileron, elevator and rudder channels. We recommend using low rates when first learning to fly or for smooth and more precise maneuvering, and high rates for more aggressive maneuvers and aerobatics. In the upper, or “HI” position, servo travel is 100% on these channels. In the lower, or “LO,” position, servo travel decreases to 70%. Switch B = Flight Mode Switch: This switch is used to select the SAFE flight mode. See the Sensor Assisted Flight Envelope (SAFE) Technology section for information about the various SAFE flight modes. Switch H = Throttle Cut Switch: This switch activates throttle cut. With throttle cut on (switch H,position 1), throttle input from the throttle stick is deactivated. This safety feature ensures any accidental movement of the throttle stick will not activate the motor while the flight battery is connected. With throttle cut off (switch H, position 0), any position of the throttle stick above the lowest setting will activate the aircraft motor.
NOTICE: Always ensure the throttle stick is at the lowest setting before switching the throttle cut function off. Failure to do so will result in the motor activating.
Switch D = Channel 7 Switch: This switch is not used for this aircraft.
RGB LED and Audible Indications:
Flashing with beeps: The transmitter is in bind mode, because the bind button was held down while the transmitter was powered on. See the Binding section for more information.
Pulsates with one low tone beep every 2 seconds: The transmitter battery voltage has dropped below 4.7 volts. Replace the transmitter batteries immediately. If this happens while flying, land the aircraft as soon as possible.

Switch D Switch B RGB LED Flight Battery Voltage Indicator Throttle/ Rudder Stick Power Button Throttle Trim Rudder Trim Neck Strap Mount
Handle
Wireless Trainer Port Programming Port

Battery Holder

Antenna

EN
Switch H Switch F Elevator/ Aileron Stick Elevator Trim Aileron Trim
Button A

Flight Battery Voltage Indicator
The included DXS transmitter is equipped with a flight battery voltage indicator feature that works with compatible Smart technology-equipped receivers, flight controllers and telemetry-capable ESCs. This Smart technology feature gives a visual representation of the approximate flight battery voltage/power remaining via the four LED indicators on the transmitter.
· When the battery is fully charged, all four LEDs glow solid.
· When the throttle is increased, the voltage of the battery drops, causing the LEDs to indicate less voltage and usable capacity of the battery remains, via fewer LEDs glowing solid or flashing.
· When the throttle is decreased, the load on the battery decreases and the voltage of the battery increases, indicated by more LEDs glowing solid or flashing. Over time less of the usable capacity of the battery remains and less power is available, indicated by fewer LEDs glowing solid or flashing.
· When the last LED begins to flash, the flight battery low voltage alarm on the transmitter sounds before the low voltage cutoff function is triggered in the aircraft ESC (see the Flying section for a description of the low voltage cutoff function). The flight battery low voltage alarm sounds for 25 seconds. If the throttle is lowered and the flight battery voltage recovers because enough usable capacity remains in the flight battery, the alarm will stop before 25 seconds. In either case, land the aircraft as soon as practical after the alarm sounds.

To reset the flight battery low voltage warning: 1. After landing, disconnect the flight battery from the aircraft for at least
15 seconds, or until the flight battery voltage indicator LEDs on the DXS transmitter go out. 2. Connect a fully charged battery to the aircraft. The flight battery voltage indicator resets prior to the next flight.
Flight Battery Voltage Indicator

Flight Battery Installation, SAFE System and Electronic Speed Control (ESC) Arming

1. Lay the aircraft upside down on a flat surface and make sure the switch is OFF.

2. Turn the latch (A) and open the battery hatch.

3. Lower the transmitter throttle stick to the lowest position and turn on throttle cut (switch H, position 1). With the throttle cut ON, throttle input from the throttle stick is deactivated. This safety feature ensures any accidental movement of the throttle stick will not activate the motor while the flight battery is connected.

4. Power on the transmitter and wait at least 5 seconds before proceeding.

IMPORTANT: Always power on the transmitter before connecting the aircraft flight battery to the ESC.

5. Connect the flight battery to the ESC, noting proper polarity.

6. Secure the flight battery (B) in the battery compartment using the hook and loop straps (C) so the aircraft is balanced at the correct center of gravity (CG). See the Center of Gravity section for information on measuring the CG.

7. Close the battery hatch and turn the latch to secure the hatch shut.

8. Put the aircraft on its landing gear, then power ON the Switch (D). The aircraft

should be on level ground and must be kept immobile while the SAFE system

initializes. If the aircraft does not initialize after about 30 seconds because of

too much movement, power OFF the ESC Switch and power it on again to re-

initialize the system.

TIP: To keep the flight battery from sliding forward or backward in flight, add a strip of adhesive backed hook and loop material to the battery and the battery strap mounts. Apply the soft loop material to the battery and the coarse hook material to the battery strap mounts.
The aircraft should be upright, on level ground and kept immobile until the aircraft system finishes initialization. If the aircraft is moved and does not complete initialization within approximately 30 seconds, disconnect and reconnect the flight battery to re-initialize the system. After the system initializes, the rudder will move side-to-side, then back to neutral to indicate the SAFE system is ready to operate. IMPORTANT: If you turn ON the switch while the throttle is not at its lowest position, the ESC will not arm and the motor will not operate. Reduce throttle to the lowest setting for the ESC to arm.
IMPORTANT: AS3X technology in Experienced Mode is not active until you advance the throttle past 25%. Once it is active, the control surfaces may move when the aircraft is handled/moved. This is normal. The AS3X technology will remain active until the ESC is disconnected.
8

D Keep immobile and out of the wind for
5 seconds
CAUTION: Always disconnect the Li-Po flight battery from the aircraft receiver when not flying to avoid over-discharging the battery. Batteries discharged to a voltage lower than the lowest approved voltage may become damaged, resulting in loss of performance and potential fire when batteries are charged.
Apprentice STS 1.5m RTF Basic · BNF Basic

EN
Center of Gravity (CG)
We recommend watching the “Center of Gravity” chapter/section of the assembly video by scanning this QR code or using this URL: www.horizonhobby.cc/ApprenticeSTSassembly.

Assembly Video
CAUTION: Never fly the aircraft without ensuring the center of gravity is within the acceptable range. Failure to properly balance the aircraft can result in loss of control and possible damage. Crash damage is not covered under warranty.
After installing the flight battery and before powering on the ESC, verify the center of gravity is correct. Ensure the power switch is in the OFF position. The CG should fall within 70-90mm from the leading edge of the wing, measured at the wing root. However, for the best flight characteristics, the suggested CG location is 80mm behind the leading edge of the wing, measured at the wing root as shown. The flight battery must be secured and battery hatch must be latched closed to balance the aircraft correctly. Hold the aircraft, with both index fingertips at the suggested CG location, on either side of the fuselage. · If the aircraft stays level, the aircraft is balanced on the suggested CG location. · If the nose tips down, move the flight battery rearward until the aircraft
balances level on the suggested CG location. · If the nose tips up, move the flight battery forward until the aircraft balances
level on the suggested CG location.
When flying in beginner mode with the correct CG, the aircraft should climb gradually at full power, and fly level at 50%60% power with no elevator input. · If the aircraft CG is too far forward (nose heavy), up elevator is required to fly
level at 50%60% power. · If the aircraft CG is too far aft (tail heavy), down elevator is required to fly level. Adjust the battery position as needed.

7090mm
inches back from the leading edge of the wing.

Control Direction Test
WARNING: Do not perform this or any other equipment test without turning on throttle cut. Serious injury or property damage could result from the motor starting inadvertently.
If the control surfaces do not respond as shown, DO NOT FLY. Refer to the Troubleshooting Guide for more information. If you need more assistance, contact the appropriate Horizon Hobby Product Support department. 1. Power on the transmitter.
2. Turn on throttle cut (switch H, position 1).
3. Set the flight mode switch to Experienced Mode (switch B, position 2).
IMPORTANT: Do NOT check the controls in the Beginner or Intermediate Modes (switch B, position 0 or 1).
4. Place the model on level ground away from obstacles.
5. Power on the aircraft, and wait for it to fully initialize.
6. Move the sticks on the transmitter as shown in the table and observe the control surfaces on the aircraft. Ensure the aircraft control surfaces respond as shown and return to neutral when the control input is released.
7. Check for any binding in the control surfaces.
8. With the aircraft on a smooth surface, roll the aircraft forward by hand. Push the rudder trim button on the transmitter left or right until the aircraft tracks straight.
TIP: The transmitter emits a faint beep with each click of the trim buttons in either direction. Holding the button in either direction quickly adjusts the trim several steps until the button is released or until the trim reaches the end of its travel. If the trim button does not beep when clicked, the trim is at the far end of its travel. Center trim is indicated by a slightly louder beep.
Centering the Control Surfaces
After checking for correct control surface movement and nose wheel alignment, release the transmitter sticks. Check each of the control surfaces to make sure they are centered. TIP: The nosewheel is centered with the electronic rudder trim. The rudder is then centered manually. For any surface that is not centered: 1. Slide the retaining sleeve off the clevis.
2. Gently pry the clevis open.
3. Slide the clevis pin out of the control horn.
4. Rotate the clevis on the pushrod to lengthen or shorten the length of the pushrod to adjust the center position of the surface.
5. When the correct position is achieved, slide the clevis pin back into the correct control horn hole.
6. Close the clevis, capturing the control horn between the sides.
7. Slide the retaining sleeve over the clevis to keep the clevis from opening.

Rudder

Aileron

Elevator

Throttle/ Rudder Stick
Transmitter Command

Before Your First Flight
Before attempting to fly this aircraft for the first time, we recommend using the RealFlight Trainer Edition RC Flight Simulator (RFL1205, sold separately) and a Spektrum WS2000 Wireless Simulator Dongle (SPMWS2000, sold separately) along with the DXS transmitter included with the RTF Basic version to learn and practice the basics of flying. Featuring six popular Horizon Hobby trainer aircraft, including the Apprentice STS 1.5m, and built-in Virtual Flight Instructor lessons, new pilots can learn to fly successfully by practicing on a PC at home or on a laptop just about anywhere else!
We also encourage you to connect with experienced RC pilots in your area through hobby shops or at designated flying fields. And for those located in the United States, we recommend joining a national organization such as the Academy of Model Aeronautics (AMA). The AMA can provide information on local clubs, instructors and established flying sites in your area in addition to insurance coverage. Visit www.modelaircraft.org for more information.

Elevator/ Aileron Stick Control Surface Response (viewed from the rear)
RealFlight Trainer Edition

Apprentice STS 1.5m RTF Basic · BNF Basic

Choose a Flying Field

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

In order to have the most success and to protect your property and aircraft, it is very important to select a place to fly that is very open. We recommend consulting your local hobby shop for information on local flying fields and clubs. For customers in the United States, visit the Academy of Model Aeronautics at www.modelaircraft.org for more information on flying clubs. Plan on flying in an area that gives you more space than you think you need, especially during the initial flights.

The chosen flying site should: · Have a minimum of 1300 feet (400m) of clear space in all directions. · Be clear of people and pets. · Be free of trees, buildings, cars, power lines or anything that could entangle
your aircraft or interfere with your line of sight.

Range Test
WARNING: While holding the aircraft during the range test, always keep body parts and loose items away from the motor. Failure to do so could cause personal injury.
Before each flying session, and especially with a new model, you should perform a range check. The included Spektrum DXS transmitter incorporates a range check mode to reduce the output power of the transmitter so you don’t have to be as far away from the receiver to check the range. Follow the directions below to enter range check mode for the DXS transmitter:
1. With the throttle stick set to the lowest setting, power on the transmitter for at least 5 seconds.
2. With the help of an assistant to hold the aircraft, connect the aircraft battery to the ESC connector. Keep the aircraft immobile for 5 seconds.
3. Face the model, holding the transmitter in your normal flying position.
4. Press and hold the bind button (button A) and toggle the HI/LO rate switch (switch F) up and down twice. The transmitter RGB LED will flash and the alarm will sound, indicating the system is in range check mode. Do not release the bind button until the range check is complete.
IMPORTANT: You must hold the bind button through the entire range check process. Releasing the button will exit range check mode.
5. With the model firmly restrained on the ground, stand approximately 30 paces away from the model.
TIP: 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.
6. Move the transmitter rudder, elevator, aileron and throttle controls to ensure they operate smoothly at approximately 30 paces. If control issues exist, do not attempt to fly. Refer to the Warranty and Service Contact Information table at the end of the this manual to contact Horizon Hobby product support.
7. When the range check is successfully completed, release the bind button to exit range check mode.
CAUTION: Due to reduced output power of the transmitter, NEVER attempt to fly while the transmitter is in range check mode. Loss of control will occur.

HOLD

Switch F 2X

Flight Control
IMPORTANT: Even though SAFE technology is a very helpful tool, the aircraft still needs to be flown manually. If incorrect input is given at lower altitudes or at slower speeds, the aircraft can crash. Study these control inputs and the aircraft response to each carefully before attempting your first flight. For first flights, set the SAFE® flight mode switch to Beginner Mode (switch B, position 0). For smooth control of your aircraft, always make small corrections. All directions are described as if you were sitting in the aircraft.
Throttle, Faster or Slower
· Push the throttle stick forward to make the aircraft go faster and climb. · Pull the throttle stick back to slow down and descend.
Elevator Up and Down
· Pull the elevator stick back to make the nose of the aircraft go up. · Push the elevator stick forward to make the nose of the aircraft go down.
Aileron Right and Left
· Move the aileron stick left to make the aircraft roll or bank left. · Move the aileron stick right to make the aircraft roll or bank right.
TIP: Always picture yourself in the aircraft when determining which way to bank the aircraft wings. · When the aircraft is flying away from you, banking the aircraft right or left
appears normal. · When flying toward you, the aircraft will appear to bank the opposite direction
to the control input given. This will become more instinctual with experience.
TIP: When flying toward yourself, if one of the wings drops, move the aileron stick toward the low wing to level the aircraft.
Rudder Right and Left
· Push the rudder stick left to yaw the aircraft nose to the left. · Push the rudder stick right to yaw the aircraft nose to the right. The rudder stick is also used to steer the aircraft left and right while taxiing on the ground.
TIP: Similar to aileron control, picture yourself in the aircraft to determine which direction to point the nose whether you are flying away from yourself or toward yourself.

Aileron

Elevator

Throttle/ Rudder Stick
Transmitter Command

Elevator/ Aileron Stick
Aircraft Response

Rudder

Apprentice STS 1.5m RTF Basic · BNF Basic

Sensor Assisted Flight Envelope (SAFE) Technology Flight Modes

At any time during a flight you can switch between Beginner, Intermediate and Experienced flight modes or use panic recovery to get your aircraft to a safe flying attitude. Change between flight modes by changing the flight mode switch position.

Flight Mode Switch (switch B)

Beginner Mode (switch B, position 0)

Flight envelope limits: Pitch (nose up and down) and Roll (wing tips up and down) angles are limited to help you keep the aircraft airborne.

· Self-leveling: when the

pitch and roll controls are

Pitch

Roll

returned to neutral, the aircraft

returns to level flight.

· Stability assisted takeoff and landing. · Throttle based climb and descent.

01 2

Intermediate Mode (switch B, position 1)

Lower flight envelope limits:

Pitch (nose up and down) and Roll

(wing tips up and down) angles are

still limited to help you keep the

aircraft airborne, but you will have

more freedom in pitch and roll.

Pitch

Roll

· NO self-leveling: self-leveling

is only active in Beginner Mode.

TIP: When flying in Intermediate Mode, the Apprentice STS will automatically be

in Beginner Mode when below 100 feet.

Experienced Mode (switch B, position 2)

NO flight envelope limits: There

are no pitch or roll limits, and no

self-leveling, so you have complete

control! You can even fly inverted

(upside down) and perform aerobatic

maneuvers including loops, rolls and

Pitch

Roll

more.

Panic Recovery
This function is intended to provide you with the confidence to continue to improve your flight skills. If you become disoriented or the aircraft is in an unknown or uncomfortable attitude in any flight mode:
1. Press the Bind/Panic button (button A) on the transmitter and release the control sticks. The aircraft will immediately pull out of a dive and roll wings upright and level.
IMPORTANT: The aircraft will recover to a safer attitude even if sticks are held while holding the Panic button. However, release the control sticks for the quickest recovery.
2. Release the Panic button and continue your flight.

CAUTION: The panic recovery function will not avoid obstacles in the aircraft flight path. Sufficient altitude is required for the aircraft to return to straight and level flight if the aircraft is upside down when the panic function is applied.

EN
Preflight Checklist
Find a safe open area to fly. Charge the flight battery. Install a fully charged flight battery in the aircraft. Make sure all linkages move freely. Check the Center of Gravity (CG). Perform the control direction test.

Perform a radio system range test. Plan flight for flying field conditions. Set a flight time for: 4-6 minutes using a 3000mAh 3S battery pack.
Have Fun!

Flying
This aircraft is relatively easy to fly and helps you apply beginner skills to flying; however, we recommend you get help from a qualified flight instructor for your first radio controlled flights. Some model flying clubs provide flight training at their flying fields. Find a nearby flying club through your local hobby shop. In the U.S., visit the Academy of Model Aeronautics at www.modelaircraft.org for more information on clubs and flight instruction.
Takeoff
Set the flight mode switch to Beginner mode (switch B, position 0) for your first flights. Set a flight timer for 5 minutes. Adjust the flight timer for later flights, depending on your flight battery choice. Position the aircraft on the runway, facing into the wind. Slowly advance the throttle to start the takeoff roll into the wind. Small rudder inputs may be required to keep the aircraft headed straight. As the throttle is advanced and sufficient speed is attained the aircraft will begin a slow climb out.
TIP: Rudder / nose wheel control throw is automatically set for taxi mode in beginner mode when on the ground and under 6 meters of altitude. This provides more control to taxi the aircraft and yaw control during landings. Once airborne, rudder control throw is automatically reduced to beginner flight mode.

Scan the QR code for a link to a video with tips to help successfully fly the aircraft.
Slowly advance the throttle stick.

Flying Video
Wind

In Flight
Continue to climb into the wind at full throttle, until the aircraft reaches about 50 feet (15 meters). Gradually turn the aircraft away from you while still maintaining altitude. Begin a turn by banking the aircraft slightly with the aileron stick. Gently pull back on the elevator stick to pull the aircraft around the turn and to maintain altitude. When the aircraft reaches the heading desired, simply apply the opposite aileron to level the wings and ease off the elevator. Climb to about 200 feet (60 meters) and reduce the throttle to around 50%. Adjust the throttle up or down to maintain altitude. Try not to get the aircraft too high or far away, making it difficult to see. As you are flying: · Fly at a high enough altitude to give yourself time to react to what the aircraft
is doing. · Make small and gentle stick movements to see how the aircraft responds. · Practice flying in large circles, high off the ground. Flying with the nose pointed
toward you is one of the hardest skills to master when learning to fly. Flying in circles will give you experience viewing the aircraft from all angles. · If you lose orientation of the aircraft, press and hold the Panic Recovery button and release the sticks. The aircraft will return to level flight. Release the button to continue your flight.
NOTICE: If a crash is imminent, activate throttle cut or quickly lower the throttle and throttle trim. Failure to do so could result in greater damage to the airframe, as well as damage to the ESC and motor.

When properly trimmed, the aircraft’s wing design causes the aircraft to climb at full throttle and descend at reduced throttle without the use of elevator.

Full throttle

50% throttle

Reduced throttle

Apprentice STS 1.5m RTF Basic · BNF Basic

Landing
1. Reduce the throttle to around 50% to slow the airspeed.
2. Fly the aircraft downwind past the end of the runway.
3. Turn the aircraft into the wind and line the aircraft up with the runway center line.
4. Gradually decrease the throttle further to begin descending towards the runway, keeping the wings level during approach. Try to have the aircraft at approximately 10 feet (3 meters) altitude as it passes over the threshold of the runway.
5. As the aircraft passes over the threshold of the runway decrease the throttle.
6. Just as the aircraft is about to touch down, gently pull back on the elevator to raise the nose, or flare, for a gentle landing on the main landing gear. The goal is to be at a low enough speed so the aircraft will not climb when the landing flare is started.
TIP: If the aircraft bounces back into the air, either increase the throttle slightly and ease the aircraft gently back down to the runway, or increase the throttle to full power, climb out and go around to begin the landing process again.
7. Continue using the rudder stick to steer the aircraft straight down the runway, allowing the aircraft to roll to a stop.
NOTICE: If a crash is imminent, activate throttle cut or quickly lower the throttle and throttle trim. Failure to do so could result in greater damage to the airframe, as well as damage to the ESC and motor.
IMPORTANT: When 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.

10ft power is cut Flare

Wind Roll out

Water Takeoff and Landing Using the Optional Float Set

Always fully dry the aircraft after landing on water.

IMPORTANT: We recommend flying with floats only once you are comfortable flying in Experienced 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 (1/41/3) 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.

CAUTION: Never swim or 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.

Wind 45º

Up Aileron Down Aileron

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 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.

Taxi 45 degrees into the direction of the wind.

Low Voltage Cutoff (LVC)
Low Voltage Cutoff is a function built into the electronic speed control to protect the battery from over-discharge. When the flight battery charge is low, LVC limits power supplied to the motor so the flight controls receive sufficient energy to safely land the aircraft. When LVC engages, the aircraft will slow and the motor will begin to pulse. When the motor power decreases, land the aircraft immediately and charge the flight battery.
NOTICE: Repeated flying to the low voltage cutoff will damage the battery.
15

EN
Trimming the Aircraft
Adjusting Trim in Flight
If your aircraft does not fly straight and level at half throttle with the sticks at neutral, fly into the wind and adjust the trim sliders as indicated in the table until the aircraft maintains a reasonably straight and level flight path. · Trimming is best done in calm wind conditions. · The SAFE flight mode switch should be set to Experienced mode (switch B, position 2)
before adjusting the trims. After the aircraft is trimmed in flight, land the aircraft and proceed to the Manually Adjusting Trim section to re-center the servos and set the trim mechanically. The included DXS transmitter features electronic trim buttons. The transmitter emits a faint beep with each click of the trim buttons in either direction. Holding the button in either direction quickly adjusts the trim several steps until the button is released or until the trim reaches the end of its travel. If the trim button does not beep when clicked, the trim is at the far end of its travel. Center trim is indicated by a slightly louder beep.
TIP: Trim the aircraft at sufficient altitude of about 100′ (30 meters). Having an experienced flight instructor trim your aircraft during the first flight is recommended.

Elevator

Aircraft Drift

Aileron

Trim Required Elevator Trim Elevator Trim Aileron Trim Aileron Trim
Rudder Trim

Rudder

Manually Adjusting Trim
After adjusting the aircraft trims in the air, the servos should be re- centered and the pushrods adjusted to reflect the trim changes made in the air. Doing so ensures the servos will retain full throw and not overdrive in either direction. 1. After landing from the trim flight, set the throttle cut to ON (switch H, position 1). 2. Set the flight mode switch to experienced mode (switch B, position 2). Ensure
the aircraft is kept immobile. 3. One at a time, take note of any offset in position of each control surface. 4. Remove the clevis from the control horn of the control surface by sliding the
soft rubber tube back along the pushrod. Gently pry the clevis open and slide the pin out of the control horn. 5. Center the transmitter trim for that control surface. 6. Adjust the clevis in or out by rotating the clevis on the pushrod until the control surface position matches the corrected offset when the clevis pin is inserted in the control horn. 7. Re-insert the clevis pin in the correct hole in the control horn. 8. Snap the clevis closed, capturing the control horn between the clevis sides. 9. Slide the soft rubber tube over the clevis to keep it from opening. 10. Move to the next control surface and repeat steps 3 through 9, until all of the transmitter control surface trims are centered.
16

Rudder Trim
Apprentice STS 1.5m RTF Basic · BNF Basic

Post Flight
Disconnect the flight battery from the ESC. Power OFF the transmitter. Remove the flight battery from the aircraft. Recharge the flight battery. Repair or replace all damaged parts. Store the flight battery apart from the aircraft and monitor the battery charge. Make note of the flight conditions and flight plan results, planning for future flights.

IMPORTANT: When 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.
LiPo battery tips: · 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 for long term storage. · During storage, make sure the battery charge does not fall below 3V per cell. · Always read and follow all safety warnings and guidelines included with your
LiPo batteries.

Transmitter and Receiver Binding
Binding is the process of programming the aircraft receiver with the identification code of the transmitter so the receiver will only connect to that specific transmitter. The included transmitter was bound to the aircraft at the factory. If the aircraft does not respond to transmitter control inputs when the batteries in the aircraft and transmitter are fully charged, the aircraft receiver and transmitter may need to be re-bound. To re-bind the transmitter and receiver:
1. Power OFF the transmitter
2. Set the throttle stick to the low position and all other controls to neutral.* Ensure the aircraft is immobile.
IMPORTANT: The throttle will not arm if the transmitter’s throttle control is not put at the lowest position.
3. Connect the flight battery to the ESC. The flight controller LED will begin to flash red and blue.
4. The aircraft receiver is attached to the inside of the battery compartment, as shown in the illustration. Press and release the bind button on the receiver. The receiver LED will flash rapidly.
5. Press and hold the bind button (button A) on the transmitter while powering ON the transmitter.
6. Watch the LED on the aircraft receiver. The receiver LED will glow solid when the receiver and transmitter are bound. Once properly bound, the receiver and transmitter will retain their bind for future flights.
If you encounter problems, refer to the troubleshooting guide. If necessary, contact the appropriate Horizon Hobby product support office.

Flight Controller

Receiver Bind Button HOLD

HOLD

Failsafe The receiver stores the position of the transmitter throttle control at the time of binding as the failsafe position. If the receiver should ever lose communication with the transmitter, the failsafe function will activate. Failsafe moves the throttle channel to its preset failsafe position (low throttle) that was stored during binding. All other control channels move to put the aircraft in a slowly descending circle until radio link is re-established.

Flight Training
To the new pilot: This aircraft is easy to fly and helps you apply beginner skills to flying; however, we recommend you get help from a qualified flight instructor for your first radio controlled flights. Some model flying clubs provide flight training at their flying fields. Find a nearby flying club through your local hobby shop. In the U.S., visit the Academy of Model Aeronautics at www.modelaircraft.org for more information on clubs and flight instruction.
To the flight instructor: Feel free to experiment with the SAFE technology before instructing your student on this aircraft. The progressive switch positions in the SAFE technology are intended for a new pilot to learn with minimal instructor assistance. We recommend using Flight Mode Switch Position 1 to instruct a new pilot. Switch positions 0 and 2 may stabilize the aircraft more or less than desired for instruction purposes.
DXS Wireless Trainer Feature Your DXS transmitter may be connected wirelessly to another transmitter through the SRXL2 DSMX Remote Receiver (SPM9747, sold separately). The DXS transmitter is ideal as the instructor transmitter as it is compatible with all Spektrum transmitters when using this feature. Servo reversing and trims must be the same on both transmitters. This “buddy box” approach has helped many new pilots get the feel for aircraft control with the close assistance of a flight instructor. Connecting two transmitters enables your flight instructor to hold the master transmitter while you hold the slave transmitter. While you learn to fly, the instructor holds the trainer switch to give you control of the aircraft. If you need help, the flight instructor can release the switch to take control.
IMPORTANT: If a transmitter other than the included DXS is used as the instructor or student transmitter, refer to Buddy Box Setup section below.
Remote Receiver Installation
1. Open the battery door
2. Connect the remote receiver cable to the wireless trainer port.
3. Install the remote receiver in the cavity behind the battery door with double sided tape.

Trainer Button
Instructor*
SRXL2 DSMX Remote Receiver Wireless Trainer Port

Student*

Buddy Box Setup
IMPORTANT: Use these settings for an Instructor or Student transmitter if using the buddy box option for training on any transmitter other than the included DXS. Failure to do so will prevent the SAFE technology flight modes from working correctly.
The transmitter must be configured using the Transmitter Setup and Buddy Box setup charts.

Student Transmitter

DX4e, DX5e (2pos)

DX4e. DX5e (3pos)

DXe

DX6i

DX7

DX6 DX7s DX7(G2) DX8 DX8(G2)

DX9 DX10t DX18 DX20

Student* Transmitter Setup Student Setup
Factory Trainer Settings Factory Trainer Settings Factory Trainer Settings Factory Trainer Settings Factory Trainer Settings
Factory Trainer Settings

Back

Instructor* Transmitter Setup

Instructor Transmitter

Instructor Setup

DX4e, DX5e (2pos)

Factory Trainer Settings

DX4e, DX5e (3pos)

Factory Trainer Settings

DXe

Factory Trainer Settings

DX6i

Factory Trainer Settings

DX7

Trainer to Normal

DX6 DX7s DX7(G2) DX8 DX8(G2)*

DX9 DX10t DX18 DX20

Activate Programmable Master and insure channels Thro – Aux 1 are set to student.

Some transmitters with older versions of Spektrum Airware software may use different terminology to describe the Student and Instructor functions.

Apprentice STS 1.5m RTF Basic · BNF Basic

Optional Landing Assist Sensor (LAS) Upgrade
The Apprentice STS is upgradable with the addition of the optional LAS module (SPMA3180 not included) this allows the advanced SAFE features to be combined with an Landing Assist Sensor (LAS) for smoother gentler landings.
IMPORTANT: For best results when using LAS, land on grass surfaces or a light colored surface, such as light colored concrete. Black surfaces or water normally do not have enough reflection for the sensor to receive accurate readings.
Installation of the LAS module
1. Remove the wing to gain access to the flight controller compartment.
2. Rotate the aircraft to access the bottom of the fuselage.
3. Press the factory installed plug (A) to release it. Then removed it from the LAS pocket. Save the plug for flights without LAS module.
4. Feed the LAS connector through the channel in the base of the LAS pocket.
5. Align the LAS module with the wires facing the back of the aircraft. Place the LAS module into the pocket and press it to secure it into place with a click.
6. Place the aircraft on its landing gear and connect LAS connector to Port 7 on the flight controller. For correct polarity of the plug ensure that the orange (not brown) signal wire (B) is facing towards the front of the aircraft when plugged into the flight controller.
Landing with LAS
Reduce throttle, keep the wings level and slowly reduce the altitude of the aircraft. When the aircraft’s landing approach reaches an altitude of roughly 1m the LAS will level off the aircraft, manage the throttle and then flare the aircraft for touchdown.
IMPORTANT: LAS is functional for all SAFE flight modes except for Experienced Mode. When the flight mode is switched to Experienced mode the LAS is deactivated and the pilot will have zero assistance on landing, a traditional manual landing of the aircraft is necessary.
IMPORTANT: Installation of the LAS module is not auto land. The aircraft must be guided and aligned with the landing strip for landing.
LED indicator
When the LAS module is installed the aircraft’s LED indicator for beginner and intermediate flight modes will be followed with a purple flash to indicate that the LAS System is active.
LAS with GPS
With GPS installed LAS will assist the Auto Land mode during landing of the aircraft. When the aircraft’s landing approach reaches an altitude of approximately 1m the LAS will level off the aircraft, manage the throttle and then flare the aircraft for touchdown.
TIP: If the speed of aircraft is too fast for landing or above 20% throttle setting, LAS is not effective.
TIP: If the aircraft’s landing approach is too low and fast, LAS will not flare.

A B

LAS

Optional SAFE Plus GPS Upgrade

From the Box to the Air Adding the SAFE Plus GPS Module
The Apprentice STS flight controler includes SAFE technology out of the box.
The Apprentice STS flight controller is upgradable with the addition of the optional SPMA3173 GPS module (not included) which enables advanced SAFE Plus features. With SAFE Plus, the aircraft can fly a holding pattern on its own, return home and land by itself, and prevent the model from flying too far from the pilot.
IMPORTANT: Read the information in this manual covering the optional SAFE Plus GPS upgrades, and learn the use of Holding Pattern and Autoland modes before flying with GPS. SAFE Plus features are only available with the SAFE Plus module installed and properly calibrated.
Follow the steps to add SAFE Plus functions to your aircraft.

1. Charge the flight battery. 2. Set up your transmitter (BNF only). 3. Install the GPS module.* 4. Find a safe and open area. 5. Power the model on outdoors and perform the compass calibration. 6. Unplug the battery after the compass calibration is complete. 7. Power the model on and allow it to acquire a GPS lock. The elevator will move up and down until GPS lock is acquired, and then re-center. 8. Set the home position (and flying field location for flying field mode). IMPORTANT: Do not fly at this time. 9. Place the aircraft into Experienced mode (Mode switch position 2) for the control direction test. Place the aircraft on the ground facing away from you. 10. Perform Control Direction Test. 11. Place the aircraft into Beginner mode (Mode switch position 0) and cycle the throttle to activate SAFE. 12. Perform SAFE Control Direction Test. 13. Plan flight for flying field conditions. 14. Set a flight timer for 8-10 minutes. 15. Have fun!

GPS Module Installation
1. Verify the battery is not connected or installed in the aircraft.
2. Open the lid of the GPS pocket (A) and feed the cable from the GPS module (B) through the hole in the base of the GPS pocket.
3. Install the GPS module in the pocket with the label facing up and the arrow pointing forward.
4. Close the pocket door securing the GPS module in to place.
5. Pull the connector across the electronic compartment and connect it to the port labeled GPS on the front side of the flight controller. Prevent the cables from interfering with the servos.
IMPORTANT: Do not kink or cut the GPS cable. Kinks or cuts will degrade performance.*

Front
GPS

GPS

Apprentice STS 1.5m RTF Basic · BNF Basic

Compass Calibration
Compass calibration might be required after installing the GPS module, before flight. The aircraft will automatically enter compass calibration on the first power up after the GPS module is installed, after binding.
IMPORTANT: The aircraft must be outside and needs to acquire a GPS lock in order to begin compass calibration. The aircraft will not enter compass calibration mode until the GPS lock is established.
Perform the compass calibration before the first flight or to correct the heading during auto landing if it varies significantly from the heading set during takeoff.
Before calibration GPS lock must be established for your location:
1. Activate throttle cut.
2. Power ON the transmitter and receiver and set the model on the ground on its wheels. The aircraft’s elevator will slowly move up and down until GPS lock is established. When finished the elevator will move up and down once quickly and center.
3. Power OFF the receiver and then the transmitter.
Once initial GPS lock is established Compass Calibration can be performed.
1. With the transmitter trims centered, power ON the transmitter and the aircraft while holding the transmitter sticks as shown. The aircraft will indicate the GPS is searching for satellites by cycling the elevator up and down. Continue to hold the transmitter sticks as shown.
2. After satellites are acquired, the aircraft will signal it has entered compass calibration mode by the following:
-The ailerons will cycle left and right slowly. -The LED will flash red and blue.
3. Once in calibration mode, the throttle is not active and the transmitter sticks can be released. The transmitter must remain powered ON.
4. Flip the aircraft twice nose over tail as shown.
5. Turn the aircraft 90 degrees and roll the aircraft twice, as shown.
6. Turn off the transmitter.
7. Wait 3 seconds and turn OFF the aircraft.
CAUTION: Keep aircraft away from magnetic sources such as cameras, camera mounts, speakers etc. These may interfere with the GPS system and loss of control may result.
Compass Error (LED Flashing Red and Blue)
If at any time you experience no throttle response after power up and the ailerons are deflected full right and the LED is flashing red and blue, the aircraft is indicating a compass error. This may be due to a lost GPS signal or from powering on the aircraft at a new flying location. Disconnect the flight battery and perform the compass calibration procedure.

2 Full Rotations

EN
2 Full Rotations

EN
Powering ON, GPS Initialization and Establishing Home Location
CAUTION: Keep aircraft away from magnetic sources such as cameras, camera mounts, speakers etc. These may interfere with the GPS system and loss of control may result.
1. Power on the transmitter.
2. Install a fully charged flight battery, following the instructions in the Install the Flight Battery section.
3. Turn the airplane switch to ON. The elevator will move up and down slowly, indicating the the GPS is searching for satellites. When GPS is aquired, the elevator will move quickly and then center.
· If you wish to change the virtual fence mode, input the transmitter stick commands as described in the Virtual Fence Mode and GPS section of the manual. The fence can be changed at any time before the home point is set.
IMPORTANT: The throttle is active but only slowly pulses the motor, allowing you to taxi the aircraft. Either taxi to or place the aircraft in the desired home location, pointing the nose of the aircraft into the wind and the desired takeoff direction.
4. Once the aircraft is on the ground at the desired home location, and pointed into the wind. Press and hold the HP/AL (bind) button.
· If either of the circle Virtual Fence modes are active or if virtual fence is off, all control surfaces will wag and the throttle will now operate, indicating the aircraft is ready for flight.
· If the Airfield Virtual Fence mode is active, only the ailerons will wag left and right. Release the HP/AL (bind) button. After setting the home location you must then indicate where the flying side of the airfield is in relation to the home location. The throttle will be inactive until the flying side direction is set. Set the flying side direction by moving the aileron stick either left or right in the direction of the flying area:
-If the flying side is off the right wing of the aircraft as it sits in the home location, push the aileron stick right to the stop and release (as shown in the example). The right aileron will move up and down indicating right direction has been set.
-If the flying side is off the left wing as the aircraft sits in the home location, push the aileron stick left to the stop and release. The left aileron will move up and down indicating left direction has been set.
Once the home location and flying location is set, all surfaces will wag, indicating the aircraft is ready for flight.
CAUTION: If the aircraft is in Airfield mode, the line that defines the no fly zone will be aligned with the center line of the aircraft, and approximately 10 meters behind you to ensure the fence does not interfere with take-offs or landings. Make sure the aircraft is point directly down the runway in one direction or the other to correctly set the Airfield mode. If the aircraft is not aligned with the runway, the no fly zone will not be set in the correct location.

Airfield Virtual Fence: Set the home location and aircraft heading
Flying Area Home Location
Direction of flight
In this example right aileron would be applied to set the flying field side.

No-Fly Zone

Apprentice STS 1.5m RTF Basic · BNF Basic

Flight Modes
Beginner, Intermediate and Experienced modes still operate the same with SAFE Plus as they did with SAFE. With SAFE Plus, The Holding Pattern (HP) and AutoLand (AL) modes may be used as well.
Holding Pattern and AutoLand Trigger:
Holding Pattern: Press and release the HP/AL (Bind) button. Press and release the HP/AL (Bind) button again to exit.
AutoLand: Press and hold the HP/AL (Bind) button for 3 seconds. Press and release the HP/AL (Bind) button again to abort AutoLand.
Changing the flight mode will exit Holding Pattern or AutoLand and resume manual control in the selected flight mode.
The “I” button is used for these features on BNF models when using the recommended transmitter setup.
IMPORTANT: LAS is functional for all SAFE flight modes except for Expert Mode. When the flight mode is switched to Expert mode the LAS is deactivated and the pilot will have zero assistance on landing, a traditional manual landing of the aircraft is nessesary.

HP/AL button

Flying the Apprentice STS with SAFE Plus
· Sensor Assisted Flight Envelope (SAFE® Plus) technology is designed as flight assistance, not an autopilot. The pilot should fly the aircraft at all times.
· Start in Beginner mode (Flight Mode switch position 0). As you learn and become more confident, change modes to advance your flying skills.
· Fly your aircraft outside in no greater than winds up to 12 mph (16 km/h). · Always launch your aircraft directly into the wind if possible. · When flying in Autoland mode, the aircraft flight path may
be adjusted with the transmitter controls, release the controls to let the GPS system resume command. · The Apprentice STS with SAFE Plus technology added does not have obstacle avoidance technology, be prepared to guide the aircraft if it is headed toward a tree or other object.
IMPORTANT: A very large flying area is required for GPS assisted aircraft. 400 meters by 400 meters minimum. (1200′ x 1200′)

EN
Virtual Fence Mode and GPS
CAUTION: Keep aircraft away from magnetic sources such as cameras, camera mounts, speakers etc. These may interfere with the GPS system and loss of control may result.
Your aircraft uses GPS to establish a home location and a virtual fence to keep the aircraft within a given distance from the home location. While flying, the aircraft will automatically turn around and fly back towards the home location if it approaches the edge of the virtual fence. Once back inside the fence, the aircraft will “wag” its wings, indicating full control has been given back to the pilot.
The Virtual Fence feature is active in all SAFE flight modes, provided the GPS function is active. There are 4 variations of Virtual Fence mode, which are selectable from the transmitter while the aircraft GPS system initializes. Virtual Fence Off: turns off the Virtual Fence function. Circle Virtual Fence, Small (Default): sets the virtual fence in a circle with a radius of approximately 175 meter from the home location. Circle Virtual Fence, Large: sets the virtual fence in a circle with a radius of approximately 225 meters from the home location. Airfield Virtual Fence: sets the virtual fence in a rectangle of approximately 400m long x 200m wide and establishes a “no fly zone” approximately 10m (about 30 feet) inside of the center line.
LED Indication
Virtual Fence Off: Slow yellow flash until home point is set. Once home point and direction is set, a solid LED (without LAS installed). Circle Virtual Fence, Small (Default): 1 Red, 1 yellow flash until home point is set. Once home point and direction set, a solid LED (without LAS installed). Circle Virtual Fence, Large: 2 Red, 1 yellow flash until home point set. Once home point and direction is set, solid LED (without LAS installed). Airfield Virtual Fence 3 Red, 1 yellow flash Set home, slow yellow flash. Set direction, right or left aileron depending on direction of flying field. Home point and direction set, solid LED without LAS. *A purple flash will follow all mode indicators to indicate LAS is installed.
Once a Virtual Fence mode is chosen, the aircraft will remember that mode until another mode is chosen. It is not necessary to select the Virtual Fence mode every time the aircraft is powered on.
WARNING: Never attempt to fly under the no fly zone. The bottom of the no fly zone is elevated to only allow for taxiing of the aircraft in the pit area of the airfield. Due to variances in the barometric sensor, attempting to fly in this area may cause the aircraft to suddenly fly back toward the home location, during which time the pilot will have no control over the aircraft until the aircraft reaches the home location. The pilot will have no way to avoid any obstacles between the no fly zone and the home location.

Virtual Fence Mode
Virtual Fence OFF
· Low throttle · Full right aileron · Full up elevator · LED Indication: Slow Yellow flash
until home point is set.
Circle Virtual Fence, Small (Default)
· Low throttle · Full left aileron · Full up elevator · LED Indication: Slow yellow flash
with 1 Red flash.
Circle Virtual Fence, Large
· Low throttle · Full left aileron · Full down elevator · LED Indication: Slow yellow flash
with 2 Red flash
Airfield Virtual Fence
· Low throttle · Full right aileron · Full down elevator · LED Indication: Slow Yellow flash
with 3 red flash

Transmitter Stick Position

LEDs are located in the center of the front windshield of the aircraft. *A purple flash will follow all mode indicators to indicate LAS is installed.
Circle Virtual Fence
Home Location

Small (Default) Large
Airfield Virtual Fence

No-Fly Zone above ~20ft (6m)

Flying Area

Home Location

Aircraft Heading

Apprentice STS 1.5m RTF Basic · BNF Basic

Holding Pattern (HP) Mode
If at anytime the aircraft seems too far away, press and release the HP/AL (bind) button on the transmitter.
The aircraft will maneuver to an altitude of approximately 120 feet (36m) and begin to fly a circular pattern over the home location.
If Airfield Virtual Fence mode is active, the aircraft will fly to approximately 120 ft (36m) altitude and fly a circular pattern about 100 ft (30m) in front of the home location.
The aircraft flies fully autonomously when HP mode is active. The transmitter sticks have no control.
NOTICE: As a safety precaution, Holding Pattern mode will not function when your aircraft is below an altitude of approximately 20 ft (6m).
To deactivate HP mode and regain control, press and release the HP/AL button again or change flight modes.
IMPORTANT: When the HP feature is activated, the aircraft should immediately respond to the command. If the aircraft does not respond immediately, GPS signal may have been lost. In this case, the aircraft will have to be flown back to the home location manually.
Failsafe (LED: RED SLOW FLASHING)
If at anytime the aircraft loses radio connection, the aircraft will activate Holding Pattern mode until it re-establishes radio connection. If radio connection is not regained, the aircraft will land near the takeoff location as in AutoLand mode.
If radio connection is lost while the aircraft is already in Holding Pattern Mode, the aircraft will circle for approximately 35 seconds and then set up to land as in AutoLand mode.
NOTICE: If a crash is imminent, activate throttle hold or quickly lower the throttle and throttle trim. Failure to do so could result in extra damage to the airframe, as well as damage to the ESC and motor.
Deactivating GPS in Flight
If the GPS system malfunctions while in flight, deactivate it to regain full manual control.
To deactivate the GPS in flight:
1. Press and hold the HP/AL (bind) button down and fully cycle the flight mode switch 3 times. The rudder will wag to indicate GPS is deactivated.
2. Set the flight mode switch to beginner mode for full SAFE Plus function. The GPS system will remain off until the aircraft is landed and the flight battery is unplugged and reconnected.
NOTICE: If GPS is deactivated, none of the Virtual Fence modes, Hold Position mode or Auto Land mode will function. The pilot will have to manually fly the aircraft back to a safe landing.

Holding Pattern Mode Holding Pattern Mode,
Airfield Virtual Fence Active

EN
AutoLand Mode
When you are ready to land or your flight timer has signaled, press and hold the HP/AL button on the transmitter for 3 seconds.
The aircraft will instantly respond and begin a landing approach in the direction set during initialization. The aircraft will land near your initialization point/location and come to a complete stop.
When AutoLand is activated, you can still control the aircraft to avoid obstacles like trees or poles. The aircraft will allow you to make corrections if you apply aileron or elevator commands, and will momentarily return throttle control to the throttle stick while the elevator or aileron commands are being used. Once clear of the obstacles just let go of the control sticks and the AutoLand feature will take over and resume the landing.
At any time you can abort a landing by pressing and releasing the HP/AL button or by changing the flight mode.
If you want to takeoff again after landing pull the throttle to low position and then press the red HP/AL button again to deactivate AutoLand, or change flight modes.
IMPORTANT: The AutoLand feature can not be initiated when your aircraft is below an altitude of approximately 20ft (6m).
NOTICE: The AutoLand feature does not possess the ability to avoid obstacles. Ensure that your flying location is free of obstacles (trees, buildings, etc) before you start flying.

Hold for 3 sec. to activate AutoLand mode
65ft (20m) 10ft power is cut
Abort

Manually Assisting AutoLand Mode
No stick inputs are required when AutoLand is activated. However, stick inputs can be used at anytime during AutoLand to avoid an obstacle, lengthen the landing or smooth the final flare on landing.
Aileron stick: Use the aileron stick to steer left or right to avoid an obstacle or make slight heading adjustments when on final approach. When aileron is given, the throttle will automatically advance slightly. Release the aileron stick and the system will take over full control.
Throttle stick: Use the throttle stick to set a throttle max point. When elevator stick input is given, the throttle will go to the max point.
Elevator stick: Up elevator: Allows the aircraft to stretch its approach by gaining altitude. When up elevator is applied the throttle increases to the throttle max point that you have established with the throttle stick. As the aircraft passes over the runway threshold, pull the throttle stick fully back and use up elevator to flare the aircraft to a soft touch down on the runway. This is the best practice for landings and will help prevent accidental propeller strikes. Down elevator: Allows the aircraft to stretch its approach without gaining or losing altitude. When down elevator is applied, the throttle increases to the throttle max point that you have established with the throttle stick without gaining or losing altitude. As soon as the right stick is centered, the system will take over full control again.
Example: When landing into a headwind, set the throttle stick to approximately 3/4 power. When the elevator stick is moved to extend the landing approach, the power will only progress to 3/4 power. Set to a higher throttle point in stronger wind or lower throttle point in low wind.

Wind

Apprentice STS 1.5m RTF Basic · BNF Basic

Deactivating GPS
Deactivating GPS in the Air
If for any reason you wish to deactivate the GPS system while the aircraft is airborne, such as if the GPS system is not calibrated correctly or is not responding as expected, follow the directions below:
1. Press and hold the HP/AL (bind) button and cycle the flight mode switch fully 3 times. The rudder will wag, indicating the GPS system is deactivated.
2. Maintain control of the aircraft and return to the runway to land manually.
To reactivate the GPS system, power cycle the aircraft.
IMPORTANT: When the GPS system is deactivated, the aircraft’s Holding Pattern, AutoLand and Virtual Fence modes will not function.

Deactivating GPS on the Ground
WARNING: Do not perform this or any other equipment test with the propeller installed on the aircraft. Serious injury or property damage could result from the motor starting inadvertently.
The GPS system is activated from the factory. If for any reason you wish to deactivate the GPS system, such as to perform a control direction test indoors or to simply enjoy the aircraft without GPS features, follow the directions below:
1. Ensure that your transmitter is bound to the aircraft. If necessary, refer to the Transmitter and Receiver Binding section.
2. Power on the transmitter.

3. Power on the aircraft. After the aircraft finds the RF signal, the elevator will start to move up and down slowly, indicating the GPS system is searching for satellites.

4. Press and hold the HP/AL (bind) button and cycle the flight mode switch fully 3 times. The elevator will stop moving and the rudder will wag, indicating the GPS system is deactivated.
To reactivate the GPS system, power cycle the aircraft.
IMPORTANT: When the GPS system is deactivated, the aircraft’s Holding Pattern, AutoLand and Virtual Fence modes will not function.
IMPORTANT: When GPS is deactived from transmitter, LED will flash red slowly. No other LED indicators will function.
To have LED indicators, unplug GPS from flight controller.

Troubleshooting Guide (SAFE Plus GPS Upgrade)

Problem

Possible Cause

Aircraft will not respond to throttle but responds to other controls

AutoLand was not deactivated after landing
Home location has not been set Direction of Airfield fence has not been set.

Ailerons go up aircraft will not bind to transmitter (during binding)

Transmitter too near aircraft during binding process
Bind switch or button not held long enough during bind process Aircraft or transmitter is too close to large metal object, wireless source or another transmitter Aircraft was not placed upright Less than a 90-second wait between first powering on transmitter and connecting flight battery to aircraft

Ailerons go up and aircraft will not respond to transmitter (after binding)

Aircraft was not upright, level or motionless Aircraft cannot acquire a GPS signal

Aux1 (CH 6) reversed

Aircraft will not enter compass calibration Aircraft cannot acquire a GPS signal

Motor does not respond after landing

Over Current Protection (OCP) stops the motor when the transmitter throttle is set high and the propeller cannot turn
AutoLand has not been deactivated

Motor pulses but battery is fully charged, not an LVC motor pulse

Lost GPS Signal

Solution Deactivate AutoLand by pressing the AL/HP button or changing flight modes and lower throttle Set the home location Use aileron command to set the fence location.
Power off transmitter, move transmitter a larger distance from aircraft, disconnect and reconnect flight battery to aircraft and follow binding instructions
Power off transmitter and repeat bind process Move aircraft and transmitter to another location and attempt binding again Place aircraft upright after powering up
Leaving transmitter on, disconnect and reconnect flight battery to aircraft
Leaving transmitter on, disconnect and reconnect flight battery to aircraft assuring that the aircraft is upright, level and motionless
Turn off GPS
Move to an outdoor location away from metal or concrete and try again
Reverse Aux1
Move to an outdoor location away from metal or concrete and try again
Fully lower throttle and throttle trim to arm ESC
Press and release HP/AL button to deactivate AutoLand feature Turn off the GPS functions Try flying at a different location

LED Indications

Plane Status Tx and Rx are not bound Plane enters bind mode Bind button AUX1 on Tx is reversed Search for GPS lock

LED on the windshield status Flash red and blue in sequence rapidly Flash yellow rapidly Flash blue rapidly Flash purple slowly Yellow LED flashes slowly. Red LED flashes 0-3 times:

0 time-Virtual Fence Off

Virtual Fence indicator; GPS signal if found

and locked, Home location is not set.

1 time-Circle Virtual Fence, small

2 times-Circle Virtual Fence, large

3 times-Airfield Virtual Fence

Compass calibration: if calibration is never done, plane will enter compass calibration Flash red and blue in sequence slowly mode after GPS is locked.

Home location is set virtual fence modes are off: Press and hold the bind button for 3 seconds

Green: Beginner mode Blue: Intermediate mode Red: Expert mode

Beginner Flight Mode: switch position: 0

w/o LAS: solid green

w/ LAS working: solid Green with purple flash every 5 seconds

Intermediate Flight Mode: switch position: 1 w/o LAS: solid blue

w/LAS working: solid blue with purple flash every 5 seconds

Experienced Flight Mode: switch position: 2 w/o LAS: solid red w/LAS working: solid red

Panic mode
Plane automatically turns around and flies back to the home location after it approaches the edge of the virtual fence.
Holding Pattern Mode:

Solid green Flashes blue slowly

Enter: click bind button

Flashes blue slowly

Abort: click bind button AutoLand Mode:

Enter: Press and hold bind button for 3 seconds

Flashes blue slowly

Abort/Exit: click bind button or change flight modes

Manually turn off GPS after initialization is done: Press and hold the bind button and toggle the flight mode switch 3 times.

Flashes red slowly

Loss of signal

Flashes red rapidly

GPS is installed backwards/Heading abnormal/Flight control turns off GPS

Flashes red slowly

On-board LED Indication and required action Flash red and blue in sequence rapidly Flash red and blue in sequence rapidly Flash blue rapidly Flash purple slowly Blue LED flashes slowly. Red LED flashes 0-3 times: 0 time-Virtual Fence Off 1 time-Circle Virtual Fence, small 2 times-Circle Virtual Fence, large 3 times-Airfield Virtual Fence Flash red and blue in sequence slowly Enter calibration.
w/o LAS: solid blue w/ LAS working: solid blue w/o LAS: solid purple w/LAS working: solid purple w/o LAS: solid red w/LAS working: solid red Solid blue Flashes blue slowly
Flashes blue slowly
Flashes blue slowly
Flashes red slowly Flashes red rapidly Flashes red slowly

Surface Movement All surfaces centered All surfaces centered Elevators move up Wags elevator slowly “Wags elevator 4 times rapidly, and then center the elevator. Throttle ONLY pulses the motor to taxi to reach location to set home point. After set home point, throttle is full range power. ” Wags ailerons continuously Wags all surfaces three times
After the plane flies back inside the fence, wags the plane twice to indicate the control is given back to the pilot.
Wags the plane twice Throttle taxi pulse.

Apprentice STS 1.5m RTF Basic · BNF Basic

Optional Transmitter Setup
To use a Spektrum transmitter other than the included DXS, use the setup table which corresponds to your transmitter series, DX, NX or iX series, to program the transmitter. When using the recommended setup, the transmitter switch layout is as follows: · Switch B Selects the Flight mode; Beginner (position 0),
Intermediate (position 1), Experienced (position 2) · Button I controls the Panic mode (depressed activates Panic mode) · Switch F controls the aileron dual rates · Switch C controls the elevator dual rates · Switch G controls the rudder dual rates. · Switch H controls the throttle cut.
IMPORTANT: After completing the transmitter setup or making any changes to the transmitter setup, the transmitter and receiver must be re-bound to save the desired failsafe positions.
Dual Rates
Make the initial flights in low rate, changing to high rate elevator for landing.
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.
Exponential
After first flights, adjust the exponential settings in the transmitter to fine tune the responsiveness of the aircraft around neutral to your preference.
iX Series Transmitter Setup
1. Power ON your transmitter and begin once the Spektrtum Airware app is open. Select the orange pen icon in the upper left corner of the screen, the system asks for permission to Turn Off RF, select PROCEED
2. Select the three dots in the upper right corner of the screen, select Add a New Model
3. Select Model Option, choose DEFAULT, select Airplane. The system asks if you want to create a new acro model, select Create
4. Select the last model on the list, named Acro. Tap on the word Acro and rename the file to a name of your choice
5. Tap and hold the back arrow icon in the upper left corner of the screen to return to the main screen
6. Go to Model Setup; Select Channel Assign, select PROCEED 5 Gear: Switch B 6 Aux1: Switch I Press and hold the back arrow icon in the upper left corner of the screen to return to the main screen
7. Go to the Model Adjust menu
8. Select Dual Rates and Expo; Channel: Aileron Switch: Switch F Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
9. Channel: Elevator Switch: Switch C Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
10. Channel: Aileron Switch: Switch G Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
11. Tap the back arrow to return to the Model Adjust menu
12. Select Throttle Cut; Switch: Switch H Position: -100%

NX Series Transmitter Setup
1. Power ON your transmitter, click on scroll wheel, roll to System Setup and click the scroll wheel. Choose yes.
2. Go to Model Select and choose near the bottom of the list. Select Airplane Model Type by choosing the airplane, select Create
3. Set Model Name: Input a name for your model file
4. Go to Channel Assign 5 Gear: Change A to Switch B 6 Aux1: Change D to Button I Click List to exit
5. Select

, Click the scroll wheel to enter the Function List
6. Go to D/R (Dual Rate) and Expo; Channel: Aileron Set Switch: Switch F Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
7. Go to D/R (Dual Rate) and Expo; Channel: Elevator Set Switch: Switch C Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
8. Go to D/R (Dual Rate) and Expo; Channel: Rudder Set Switch: Switch G Set Switch Positions 0 and 1: Rate 100%, Expo 10% Set Switch Position 2: Rate 70%, Expo 5%
9. Select List to go back to the Function List
10. Select Throttle Cut; Switch: Switch H Position: -100%
DX Series Transmitter Setup
1. Power ON your transmitter, click on scroll wheel, roll to System Setup and click the scroll wheel. Choose yes.
2. Go to Model Select and choose at the bottom of the list. The system asks if you want to create a new model, select Create
3. Set Model Type: Select Airplane Model Type by choosing the airplane. The system asks you to confirm model type, data will be reset. Select YES
4. Set Model Name: Input a name for your model file
5. Select

Smart Technology Electronic Speed Control (ESC)

The Apprentice STS is equipped with an exclusive Smart technology electronic speed control that can provide a variety of real-time power system related telemetry data while you fly, including motor RPM, current, battery voltage and more to compatible Spektrum AirWareTM equipped transmitters.

When powered on, the ESC will send the below information to the flight control and the information will be displayed on the transmitter telemetry screen.

· RPM*

· Throttle

· Voltage

· FET Temperature

· Current

· BEC Temperature

For the RPM telemetry information to display correctly, you must program the motor pole count into the Telemetry settings of your transmitter. The Apprentice STS uses a 12-pole motor.
To program the motor pole count information:
1. Power on your transmitter.
2. Set the throttle cut to on.
3. Power on the aircraft and allow it to initialize.
4. In your transmitter, go to the Function List (Model Setup in iX series transmitters).

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.
Repairs to the wings and fuselage of this aircraft can be made easily using virtually any adhesive (hot glue, regular CA [cyanoacrylate adhesive], 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 back of this manual.

RPM: Volts: Motor: Throttle: Fet Temp:
BEC:

0 0.0V 0.0A 0% 0.0C 0.0C

0% Output 0.0A 0.0V

5. Select the Telemetry menu option. 6. Go to the ESC menu option. 7. Scroll down to Poles. 8. Enter 12 (for iX series transmitters, you must select save to save your changes). 9. Return to the main screen.

BIND 1 = ESC (Not SMART) 2 = Left Aileron 3 = Right Aileron 4 = Elevator 5 = Rudder 6 = SMART ESC 7 = Open /Optional LAS 8 = Open

Apprentice STS 1.5m RTF Basic · BNF Basic

Propeller and Motor Service

Disassembly
1. Remove the spinner (A) from the backplate (B), by pinching the backplate and pulling the spinner away.
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. · Correctly align and connect the motor wire colors with the ESC wires. · The propeller size numbers (11 x 8) must face
forward for correct propeller operation. · A tool is required to tighten the hex nut on the collet. · Ensure the spinner is fully connected to the
spinner backplate for safe operation.
K

G E

J
I F

L M
Wiring not shown.

H B

D C

Factory Settings for the Control Horns and Servo Arms
The illustration shows recommended hole settings in the servo arms and control horns.

Arms

Elevator

Ailerons

Rudder / Nose Gear
Nose Gear
Rudder

Horns

AS3X® System Trouble Shooting Guide

Problem Trim change when flight mode is switched

Possible Cause Trim is not at neutral Sub Trim is not at neutral

Solution If you need to adjust the trim more than 8 clicks, return the trim to neutral and manually adjust the clevis to center the trim
Do not use Sub Trim. Adjust the servo arm or the clevis

Troubleshooting Guide

Problem

Possible Cause

Solution

No link between the transmitter and receiver

Re-Bind the system following directions in this manual

Aircraft does not operate

Transmitter AA batteries are depleted or installed incorrectly as indicated by a dim or unlit LED on the transmitter or the Check polarity installation or replace with fresh AA batteries low battery alarm

No electrical connection

Push connectors together until they are secure

Flight battery is not charged

Fully charge the battery

Crash has damaged the radio inside the fuselage

Replace the fuselage or receiver

Aircraft keeps turning in one direction Rudder or rudder trim is not adjusted correctly

Adjust stick trims, then land and manually adjust aileron and/or rudder linkages so no transmitter trim is required

Aileron or aileron trim is not adjusted correctly

Adjust stick trims or manually adjust aileron positions

Wing or tail is damaged

Replace damaged part

Aircraft is difficult to control

Damaged Propeller Center of gravity is behind the recommended location

Land immediately and replace damaged Propeller
Shift battery forward, do not fly until correct Center of Gravity location is achieved

Wind is too gusty or strong

Postpone flying until the wind calms down

Aircraft nose rises steeply at half throttle

Elevator is trimmed `up’ too much

If trim must be adjusted more than 4 clicks when pushing the trim button, adjust push rod length

Battery is not installed in the correct position.

Move forward approximately 1/2″

Battery is not fully charged

Fully charge battery before flying

Aircraft will not climb

Elevator may be trimmed `down’

Adjust elevator trim `up’

Propeller damaged or installed backwards

Land immediately, replace propeller

Aircraft is difficult to launch in the wind Launching the aircraft down wind or into a cross wind

Always launch the aircraft directly into the wind

Battery is not fully charged

Recharge battery

Flight time is too short

Flying at full throttle for the entire flight Wind speed too fast for safe flight

Fly at just above half throttle to increase flying time Fly on a calmer day

Propeller damaged

Replace propeller

Aircraft vibrates

Propeller, spinner or motor damaged

Tighten or replace parts

Rudder, ailerons or elevator do not move freely

Damaged or blocked push rods or hinges

Repair damage or blockage

Aircraft will not Bind (during binding) to transmitter

Transmitter is too near aircraft during binding process
Aircraft or transmitter is too near a large metal object, wireless source or another transmitter

Move powered transmitter a few feet from aircraft, disconnect and reconnect battery to aircraft
Move the aircraft and transmitter to another location and attempt binding again

Flight battery/transmitter battery charge is too low

Replace/recharge batteries

Transmitter is too near aircraft during connecting process

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

Aircraft will not connect (after binding) to transmitter

Aircraft or transmitter is too near a large metal object, wireless source or another transmitter
Aircraft battery/Transmitter battery charge is too low

Move the aircraft and transmitter to another location and attempt connecting again
Replace/recharge batteries

Transmitter may have been bound to a different model (using different DSM Protocol)

Bind aircraft to transmitter

After being properly adjusted, aileron and/or rudder are not in neutral position Model was moved during initial power on when battery is plugged in

Unplug flight battery and reconnect, keeping model immobile for at least 5 seconds

Apprentice STS 1.5m RTF Basic · BNF Basic

Replacement Parts

Part # EFL2733 EFL2734 EFL2735 EFL2737 EFL2738 EFL310005 EFL310006 EFL310007 EFL310008 EFL310009 EFL310010 EFL310011 EFL310013 EFL310014 EFL310015 EFL310016 EFL310017 EFL310018 EFL310020 EFL310021
EFLA1030FB
EFLM7215
EFLP11080E
EFLR7150
EFLR7155
SPM4650C
SPMA3230
SPMR1010

Description Spinner: Apprentice Motor Mount: Apprentice 5mm Prop Adapter: Apprentice Wing Hold Down Rods with Caps:Apprentice Rubber Bands (8): Apprentice Pushrod Set: Apprentice S Nose Gear: Apprentice S Main Landing Gear: Apprentice S Firewall: Apprentice S Nose Gear Arm & Mounting Strap: Apprentice S Battery Door: Apprentice S Wheels 65mm (3): Apprentice S Wing Set: Apprentice STS Fuselage: Apprentice STS Tail Set: Apprentice STS Decal Set: Apprentice STS LAS Cover: Apprentice STS Cowl: Apprentice STS GPS Cover: Apprentice STS Screw Set; Apprentice STS
30-Amp Telemetry Capable ESC
BL15 Outrunner Motor, 840Kv
11 x 8 Electric Prop
37g Standard Servo
13g Digital Micro Servo
DSMX SRXL2 Rx w/Connector
Flight Controller: Apprentice STS
DXS Transmitter

Recommended Parts

Part # SPMXPSA300

Description Smart G2 Powerstage Bundle: 3S 4000mAh; S120

Optional Parts

Part # SPMA3180 SPMR6775 SPMX32003S30 SPMXPSA300 SPMR8200 RFL1200S SPMXC2050 SPMX323S30

Description Landing Assist Sensor (LAS) NX6 6 Ch Transmitter Only 3200mAh 3S 11.1V Smart 30C; IC3 Smart G2 Powerstage: 3S 4000mAh; S120 SPMR8200 NX8 8-Channel DSMX Transmitter Only RealFlight 9.5S RC Flight Sim with InterLink Controller S155 G2 1 x 55W AC Smart Charger 11.1V 3200mAh 3S 30C Smart G2 LiPo Battery: IC3

Hardware

Location

Description

Quantity

2 x 5mm self-tapping screw

One on top of the cowl and two on the bottom

M6 x 3mm machine screw w/ Washers

To secure the motor on the motor mount

3 x 10mm self-tapping screw Motor mount to the firewall

2.5 x 15mm self-tapping screw

Secure nose gear bracket to firewall.

3 x 6mm selt-tapping screw

To mount the servo arm to nose landing gear wire

2 x 4.5mm self-tapping screw

Servo arm screws

2.5 x 6mm self-tapping screw Rudder/nose gear servo arm screw 1

M2 x 21mm machine screw

To secure the control horns on main wing

M2 x 10mm machine screw

To secure the control horn on vertical fin

M2 x 10mm machine screw

To secure the control horn on horizontal tail

2.5 x 15mm self-tapping screw To mount the tail to fuselage

2.5 x 12mm self-tapping screw To secure the battery door latch

2.5 x 8mm self-tapping screw with washer

To secure the ESC switch

Glossary of Important Terms
Aileron: Control surface found on the trailing edge of each wing. Giving right aileron control causes the right aileron to deflect up and the left aileron to deflect down, making the aircraft roll to the right. Giving left aileron control causes the left aileron to deflect up and the right aileron to deflect down, making the aircraft roll left.
AS3X: Active Stabilization, 3-Axis. An electronic stability system that counters outside forces such as wind, turbulence, torque, tip-stall, control sensitivity issues due to CG position, to make the aircraft fly more smoothly, and provide a better flying experience.
Binding: The process of electronically linking the transmitter to the receiver. The aircraft will then recognize only a particular transmitter.
Center of Gravity (CG): Point at which the aircraft balances, most notably from front to back.
Clevis: The U-shaped connector at the end of the aircraft pushrod which allows adjustment of the pushrod length.
Control Throw: The distance a control surface deflects, normally measured from the widest point of the control surface.
Dual Rate: Setting found in the transmitter which allows two different control throw distances when the control stick is deflected fully. Using a low rate gives less control throw at full deflection and thus a less sensitive feel to the aircraft. Using high rate gives greater control throw at full deflection and thus a more sensitive feel to the aircraft.

EDF: Electric Ducted Fan
Elevator: Control surface found on the trailing edge of the horizontal stabilizer. Up elevator causes the aircraft to pitch up. Down elevator causes the aircraft to pitch down.
Electronic Speed Control (ESC): an electronic device that controls and regulates the speed of the motor. It has connections from the battery, to the motor, and to the Receiver.
Exponential: A setting programmed in the transmitter which allows the pilot to tailor the sensitivity of the controls around neutral. Increasing the exponential value creates a softer control feel around neutral, thus making the aircraft less sensitive to control inputs. Exponential only affects the controls around neutral.
Low Voltage Cutoff (LVC): A safety feature built into the electronic speed control which activates when the battery voltage drops below a determined level, cutting power to the motor, but still providing power to the receiver and servos, allowing the aircraft to be landed safely.
Pitch: The rotation of the aircraft nose up or down, controlled by the elevator.
Range Test: Test to check the transmitter and receiver are functioning properly. The test is done by setting the transmitter to a low-power mode and testing the control function from a set distance.
Receiver: an electronic device installed in the aircraft which decodes the control inputs sent from the transmitter and sends the inputs to the servos.
33

Roll: Left and right rotation of the aircraft around the longitudinal axis.
Rudder: Control surface found on the trailing edge of the vertical stabilizer. Right rudder control causes the nose of the aircraft to turn to the right. Left rudder causes the nose of the aircraft to turn left.
Sensor-Assisted Flight Envelope (SAFE) Technology: Offers smoother flight capability that battles windy conditions for you and multiple modes so you can fly with the level of protection and assistance that suits any given moment of the flight.
Servo: Electronic component which translates the control signals from the receiver into movement of a control surface. The servo is connected to the control surface with a pushrod.

Throttle: Control input which regulates the speed of the motor. A higher throttle setting makes the motor rotate faster, thus increasing forward thrust. A lower throttle setting makes the motor rotate slower, thus decreasing forward thrust.
Transmitter: Control unit held by the pilot which sends signals to the aircraft.
Yaw: Left or right rotation of the aircraft nose, controlled by the rudder.

Important Federal Aviation Administration (FAA) Information

Use the QR code below to learn more about the Recreational UAS Safety Test (TRUST), as was introduced by the 2018 FAA Reauthorization Bill. This free test is required by the FAA for all recreational flyers in the United States. The completed certificate must be presented upon request by any FAA or law enforcement official.

If your model aircraft weighs more than .55lbs or 250 grams, you are required by the FAA to register as a recreational flyer and apply your registration number to the outside of your aircraft. To learn more about registering with the FAA, use the QR code below.

Recreational UAS Safety Test

FAA DroneZone

AMA National Model Aircraft Safety Code

Effective January 1, 2018
A model aircraft is a non-human-carrying device capable of sustained flight within visual line of sight of the pilot or spotter(s). 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 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.

Apprentice STS 1.5m RTF Basic · BNF Basic

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, (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 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, 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_renderservice- 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 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 Product for a period of 60 days from notification, after which it will be discarded.
10/15

Contact Information

Country of Purchase

Horizon Hobby

Horizon Service Center (Repairs and Repair Requests)

United States of America

Horizon Product Support (Product Technical Assistance) Sales

European Union

Horizon Technischer Service Sales: Horizon Hobby GmbH

Contact Information
servicecenter.horizonhobby.com/RequestForm/ [email protected] 877-504-0233 [email protected] 800-338-4639 [email protected] +49 (0) 4121 2655 100

Address
2904 Research Rd Champaign, Illinois, 61822 USA
Hanskampring 9 D 22885 Barsbüttel, Germany

FCC Information
Contains FCC ID: BRWKATY1T FCC ID: BRWSRLRR2
This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and/or antenna and your body (excluding fingers, hands, wrists, ankles and feet). This transmitter must not be colocated or operating in conjunction with any other antenna or transmitter.
Supplier’s Declaration of Conformity
EFL Apprentice 1.5m STS RTF Basic and BNF Basic (EFL370001/ EFL3750): 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: [email protected] Web: HorizonHobby.com

IC Information
CAN ICES-3 (B)/NMB-3(B) Contains IC: 6157A-KATY1T IC: 6157A-SRLRR2 This device contains license-exempt transmitter(s)/receivers(s) that comply with Innovation, Science, and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following 2 conditions:
1. This device may not cause interference. 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: EFL Apprentice 1.5m STS RTF Basic (EFL370001): Hereby, Horizon Hobby, LLC declares that the device is in compliance with the following: EU EMC Directive 2014/30/EU; EU Radio Equipment Directive 2014/53/ EU; RoHS 2 Directive 2011/65/EU, RoHS 3 Directive – Amending 2011/65/EU Annex II 2015/863. EFL Apprentice 1.5m STS BNF Basic (EFL3750); Hereby, Horizon Hobby, LLC declares that the device is in compliance with the following: EU Radio Equipment Directive 2014/53/EU, RoHS 2 Directive 2011/65/EU, RoHS 3 Directive – Amending 2011/65/EU Annex II 2015/863
The full text of the EU declaration of conformity is available at the following internet address: https://www.horizonhobby.com/content/support- render-compliance.
NOTE: This product contains batteries that are covered under the 2006/66/EC European Directive, which cannot be disposed of with normal household waste. Please follow local regulations.
Wireless frequency and output: Transmitter: 2402.0 – 2478.0MHz 17.7 dBm Receiver: 24042476MHz 3dBm

EU Manufacturer of Record: Horizon Hobby, LLC 2904 Research Road Champaign, IL 61822 USA
EU Importer of Record: Horizon Hobby, GmbH Hanskampring 9 22885 Barsbüttel Germany
WEEE NOTICE:
This appliance is labeled in accordance with European Directive 2012/19/EU concerning waste of electrical and electronic equipment (WEEE). This label indicates that this product should not be disposed of with household waste. It should be deposited at an appropriate facility to enable recovery and recycling.

Apprentice STS 1.5m RTF Basic · BNF Basic

©2022 Horizon Hobby, LLC. E-flite, Plug-N-Play, Bind-N-Fly, BNF, the BNF logo, DSM, DSM2, DSMX, Spektrum AirWare, EC3, IC3, AS3X, SAFE, the SAFE logo, ModelMatch, and the Horizon Hobby logo are trademarks or
registered trademarks of Horizon Hobby, LLC. The Spektrum trademark is used with permission of Bachmann Industries, Inc. All other trademarks, service marks and logos are property of their respective owners.
US 8,672,726 US 9,056,667 US 9,753,457. US 10,078,329. US 9,930,567. US 10,419,970. Other patents pending. http://www.horizonhobby.com/

Created 06/22

337641

EFL370001, EFL3750

References

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E-flite EFL370001 RC Airplane Apprentice Instruction Manual

EFL370001 RC Airplane Apprentice

References

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