Horizon Hobby E-flite UMX Turbo Timber Evolution

Questions and Answers

D
Daniel JohnsonJul 28, 2025
Why is my Horizon Hobby Toy having reduced flight time?
- M
  Mr. William Taylor DDSJul 28, 2025
  Reduced flight time or an underpowered aircraft can occur for several reasons: * The flight battery charge may be low, requiring a complete recharge. * The propeller might be installed backward; ensure the numbers face forward. * The flight battery could be damaged, necessitating a replacement. * Cold flight conditions can affect battery performance; warm the battery before use. * The battery capacity might be insufficient for the flight conditions; consider replacing it with a larger capacity battery.
T
Thomas HarperAug 1, 2025
What to do if I hear extra propeller noise or vibration from my Horizon Hobby E-flite UMX Turbo Timber Evolution Toy?
- J
  Julie DiazAug 1, 2025
  If you notice extra propeller noise or vibration, it could be due to: * Damaged propeller, spinner, or motor: Replace any damaged parts. * Loose propeller screw: Tighten the propeller screw. * Unbalanced propeller: Remove and balance the propeller, or replace it with a balanced one.
C
Caitlin StanleyAug 5, 2025
What to do if my Horizon Hobby Toy aircraft won't respond to throttle?
- D
  deborahreeseAug 5, 2025
  If your aircraft responds to other controls but not the throttle, consider these solutions: 1. Ensure the throttle stick and trim are at their lowest settings. Reset the controls accordingly. 2. Check if the throttle channel is reversed and, if so, reverse it on the transmitter. 3. Verify that the motor is properly connected to the receiver by opening the fuselage.
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George PhillipsAug 10, 2025
Why do the controls oscillate in flight on my Horizon Hobby E-flite UMX Turbo Timber Evolution Toy?
- J
  Jennifer DeanAug 10, 2025
  Control oscillations during flight, where the model rapidly jumps or moves, can be caused by: * An unbalanced propeller causing excessive vibration. Remove the propeller and rebalance it, or replace it if damaged. * A loose propeller screw causing vibration. Tighten the propeller screw.
D
Donna ChangAug 14, 2025
How to fix a flashing LED on the receiver of my Horizon Hobby E-flite UMX Turbo Timber Evolution?
- J
  Jeffrey WatsonAug 14, 2025
  If the LED on the receiver flashes and the aircraft won't bind to the transmitter during binding, try these steps: * Power off the transmitter, move it further away from the aircraft, disconnect and reconnect the flight battery to the aircraft, and follow the binding instructions. * Power off the transmitter and repeat the binding process, holding the transmitter bind button or switch until the receiver is bound. * Move the aircraft and transmitter to another location away from large metal objects, wireless sources, or other transmitters, and attempt binding again.
B
Brandon JensenAug 19, 2025
Why does my Horizon Hobby E-flite UMX Turbo Timber Evolution Toy fly inconsistently?
- H
  Hannah AllenAug 19, 2025
  Inconsistent flight performance from flight to flight can occur if: * The aircraft was not kept immobile for 5 seconds after the battery was plugged in. Keep the aircraft immobile for 5 seconds after plugging in the battery. * The trims are moved too far from the neutral position. Neutralize the trims and mechanically adjust the linkages to center the control surfaces.
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William HuffAug 22, 2025
What to do if control surfaces are not neutral on my Horizon Hobby Toy?
- K
  Keith HollandAug 23, 2025
  If the control surfaces are not at the neutral position when the transmitter controls are at neutral, it may be due to: * Control surfaces not mechanically centered from the factory. Center control surfaces mechanically by adjusting the U-bends on control linkages. * The aircraft being moved after the flight battery was connected and before sensors initialized. Disconnect and reconnect the flight battery while keeping the aircraft still for 5 seconds.

Summary

Notice and Special Language

General Safety Precautions

Provides essential guidelines for safe operation, handling, and storage of the model and its components.

Transmitter Setup and Binding

Low Voltage Cutoff (LVC)

Explains the ESC's Low Voltage Cutoff feature to protect the flight battery and ensure safe landing.

Binding Procedure

Detailed steps for binding the Spektrum transmitter to the aircraft's receiver for correct operation.

Smart Technology and Flight Modes

SAFE Select Technology Overview

Explains SAFE and AS3X flight modes, comparing aircraft response to control inputs.

Disabling and Enabling SAFE Select

Instructions on how to disable or enable SAFE Select functionality using transmitter stick commands.

Aircraft Arming and CG

ESC;Receiver Arming and Battery Installation

Steps for arming the ESC/receiver, including battery connection and AS3X system initialization.

Center of Gravity (CG)

Details the correct CG location and how to adjust battery placement for proper balance.

Control Tests and Centering

Control Direction Test

Verifies correct response of elevator, aileron, and rudder controls to transmitter inputs.

Pre-Flight Control Centering

Steps to ensure flight control surfaces are mechanically centered before the first flights.

Flying Tips and Repairs

Flying Recommendations

Takeoff and Hand Launching

Landing Procedures

Over-Current Protection (OCP)

Post Flight Checklist

Power Components Service

Disassembly

Assembly

Troubleshooting Guides

AS3 X System Troubleshooting

Common issues with AS3X system, control surfaces, and model stability.

General Troubleshooting Guide

Addresses issues like no throttle response, motor noise, reduced flight time, and binding problems.

Troubleshooting Receiver and Transmitter Issues

Solutions for receiver flashing, no response, control surface issues, and motor power loss.

Horizon Hobby E-flite UMX Turbo Timber Evolution Specifications

General

Flaps	Yes
Battery	2S 7.4V 300mAh LiPo (included)
Flight Time	5-8 minutes
Radio System	Spektrum DSMX/DSM2
Speed Control	Spektrum Brushless ESC
LED Lights	Yes
Control Functions	Ailerons, Elevator, Rudder, Throttle, Flaps