Horizon Hobby Timber X 1.2m User Manual (English)

Questions and Answers:

N
Nancy WagnerJul 28, 2025
Why is my Horizon Hobby Timber X 1.2m oscillating?
- C
  Curtis Green Jr.Jul 28, 2025
  Oscillation in your Horizon Hobby Toy can stem from several issues. It could be due to a damaged propeller or spinner, which would require replacement. An imbalanced propeller should be balanced. Motor vibration can also cause this, and you may need to replace parts or realign and tighten fasteners. Other potential causes include a loose receiver (align and secure it), loose aircraft controls (tighten servo, arm, linkage, horn, and control surface), worn parts (replace propeller, spinner, or servo), or irregular servo movement (replace the servo).
A
amber30Aug 6, 2025
What to do if my Horizon Hobby Timber X 1.2m Toy has inconsistent flight performance?
- J
  John ShieldsAug 6, 2025
  Inconsistent flight performance in your Horizon Hobby Toy can arise from a few key issues. First, ensure your trim is at neutral; if you've adjusted it more than 8 clicks, adjust the clevis to remove trim. Also, confirm that Sub-Trim is not in use, as it's not allowed, and adjust the servo linkage instead. Finally, make sure the aircraft remained immobile for 5 seconds after the battery connection. To resolve this, disconnect the battery with the throttle stick in the lowest position, then reconnect the aircraft and keep it still for 5 seconds.
R
Richard BradshawAug 16, 2025
What to do if Horizon Hobby Timber X 1.2m Toy receiver is incorrectly installed?
- G
  Glen WalkerAug 16, 2025
  To prevent crashes with your Horizon Hobby Toy, ensure the receiver is correctly installed using double-sided servo tape.

Horizon Hobby Timber X 1.2m Specifications

General

Flaps	Yes
Recommended Experience Level	Intermediate
Approximate Assembly Time	Less than 1 Hour
Power Type	Electric
Transmitter	Sold separately
Technology	AS3X and SAFE Select
Wingspan	1200mm (47.24 inches)
Motor	Brushless Outrunner
Recommended Battery	3S 11.1V 2200–3200mAh LiPo
Servos	6 (installed)
Control Channels	6+
Landing Gear	Yes
Completion Level	Bind-N-Fly Basic
Receiver	Spektrum
Material	EPO
Speed Control	40A Brushless ESC

Summary

Safety Precautions and Warnings

Box Contents

Quick Start Information

Overview of initial setup steps and transmitter settings for the model.

Specifications

Details of the model's components, including motor, ESC, receiver, and battery recommendations.

SAFE® Select Technology (BNF Basic)

Preflight

Checklist of essential steps to perform before the first flight of the model.

Transmitter Setup (BNF Basic)

Guidance on configuring your transmitter, including dual rates and expo settings.

Computerized Transmitter Setup

Instructions for setting up specific Spektrum transmitters for the aircraft.

Model Assembly

Landing Gear Installation

Step-by-step instructions for attaching the landing gear and spring assemblies to the fuselage.

Horizontal Tail Installation

Guide for installing the horizontal stabilizer and connecting the elevator control horn.

Control Surface Centering

Procedure to ensure all control surfaces are mechanically centered before flight.

Slat Installation (Optional)

Instructions for attaching optional slats to the wing using medium CA adhesive.

Wing Assembly

Steps for joining the wing halves, connecting servos, and attaching the wing to the fuselage.

Transmitter and Receiver Binding / Switching ON and OFF SAFE Select (BNF Basic)

Bind Plug Installation

Visual guide for inserting the bind plug into the receiver.

Binding Procedure / Switching ON SAFE Select

Detailed steps to bind the aircraft to the transmitter with SAFE Select ON.

Binding Procedure / Switching OFF SAFE Select

Detailed steps to bind the aircraft to the transmitter with SAFE Select OFF.

Battery Installation and ESC Arming

Battery Selection

Recommendations for suitable Li-Po batteries and considerations for fit and balance.

ESC Arming

Procedure for powering on the transmitter and connecting the flight battery to arm the ESC.

SAFE® Select Switch Designation

Assigning a switch

Instructions for assigning a transmitter switch to control SAFE Select functionality.

Control Horn and Servo Arm Settings

Factory settings for control horns and servo arms, with options for tuning.

Center of Gravity (CG)

CG Location Measurement

How to measure and set the correct center of gravity for the aircraft.

AS3X Control Direction Test (BNF Basic)

Procedure to verify the proper functioning and direction of AS3X control surfaces.

In Flight Trimming (BNF Basic)

How to trim the aircraft for level flight and optimize AS3X performance during the first flight.

Flying Tips and Repairs

Range Check your Radio System

Importance of performing a radio system range check before flying.

Oscillation

Identifying and troubleshooting control surface oscillation issues.

Takeoff

Guidance on performing takeoffs using flaps and proper control inputs.

Flying

General flying tips, including timer settings and battery management.

Landing

Instructions for performing a safe landing using flaps and proper control techniques.

SAFE Select Flying

How SAFE Select assists with pitch control during throttle applications and flap deployment.

Low Voltage Cutoff (LVC)

Explanation of LVC function and tips for battery health and avoiding over-discharge.

Repairs

Guidance on repairing EPO foam parts and ordering replacement components.

PNP Receiver Selection and Installation

Installation (AR636 shown)

Steps for installing the AR636 receiver and connecting control surfaces.

Post Flight

Essential steps to perform after completing a flight, including battery disconnection.

Motor Service

Procedures for disassembling and assembling the motor and propeller.

Troubleshooting Guide AS3X

Common problems, possible causes, and solutions for AS3X system issues.

Troubleshooting Guide

Aircraft will not respond to throttle but responds to other controls

Solutions for unresponsive throttle while other controls function.

Extra propeller noise or extra vibration

Troubleshooting steps for excessive propeller noise or vibration.

Reduced flight time or aircraft underpowered

Identifying causes and solutions for short flight times or underpowered performance.

Aircraft will not Bind (during binding) to transmitter

Steps to resolve issues preventing the aircraft from binding to the transmitter.

Aircraft will not connect (after binding) to transmitter

Solutions for problems connecting the aircraft to the transmitter after successful binding.

Control surface does not move

Troubleshooting steps when control surfaces fail to move.

Controls reversed

How to correct reversed control surface responses.

Motor power pulses then motor loses power

Diagnosing and fixing intermittent motor power issues.

BNF advanced receiver setup (optional)

Servo Plug Order Change

Instructions for changing servo plug order for advanced flap configuration.

AR636 advanced receiver setup port assignments

Diagram and list of port assignments for the AR636 receiver.

Advanced Transmitter Setup

Detailed setup instructions for various Spektrum transmitters for advanced features.

AMA National Model Aircraft Safety Code

A. GENERAL

General safety rules and guidelines for operating model aircraft.

B. RADIO CONTROL

Specific safety rules for radio-controlled model aircraft operations.

Limited Warranty

What this Warranty Covers

Details on what is covered under the Horizon Hobby product warranty.

What is Not Covered

Specific exclusions and limitations of the product warranty.

Purchaser's Remedy

Explanation of the customer's options for warranty service or replacement.

Limitation of Liability

Legal limitations on Horizon Hobby's liability for damages.

Warranty Services

How to obtain warranty support and service from Horizon Hobby.

Contact Information

Contact details for Horizon Hobby support and service centers.

FCC Information

Supplier's Declaration of Conformity

Compliance statement from the supplier regarding FCC rules.

IC Information

Compliance information for Industry Canada regulations.

Compliance Information for the European Union

EU compliance statements and disposal instructions for WEEE.

Recommended Receivers

Telemetry Sensors*

List of telemetry sensors compatible with the aircraft.

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