Horizon Hobby HobbyZone Duet S 2

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The HobbyZone Duet S 2 525mm (HBZ05300) is a sophisticated hobby product designed for sport, recreation, education, and/or competition. It is a non-human-carrying model aircraft capable of sustained flight within visual line of sight of the pilot or spotter(s). This product is not a toy and is recommended for users aged 14 years and older. It requires caution, common sense, and basic mechanical ability to operate safely and responsibly.

Function Description:

The Duet S 2 is a radio-controlled model aircraft that utilizes a radio signal for control. It features SAFE® Technology Flight Modes and AS3X® Mode to assist with flight stability and control. SAFE Mode provides self-leveling capabilities, limiting pitch (nose up and down) and roll (wing tips up and down) angles to help keep the aircraft airborne, especially for beginners. Releasing both sticks in SAFE Mode will engage self-leveling. AS3X Mode offers an unlimited flight envelope for more experienced pilots. The aircraft can be hand-launched or take off from a hard, level runway using its landing gear. It is powered by a Li-Po battery, which needs to be charged using a dedicated USB Li-Po charger. The transmitter provides visual and auditory cues for flight mode selection and battery status.

Important Technical Specifications:

Wingspan: 20.6 inches (523.3mm)
Length: 14.5 inches (368.4mm)
Weight (Without Battery): 1.3oz (38g)
Weight (With Recommended 1S 150mAh Flight Battery): 1.5oz (43g)
Battery Type: 1S 150mAh Li-Po (recommended)
Charger: USB Li-Po Charger (included)
Transmitter Frequency Range: 2405-2475MHz
Receiver Frequency Range: 2405-2475MHz
Wireless Output Power (Transmitter): 9.66dBm
Wireless Output Power (Receiver): 9.82dBm
UAS Classification: Class C4 UAS as defined by the European Union Aviation Safety Agency (EASA).

Usage Features:

Transmitter Controls: The transmitter includes sticks for throttle/power switch and steering (up/down, left/right), as well as trim buttons for fine-tuning flight. It also has a bind button and a toggle for switching between AS3X and SAFE modes.
Low Battery Alarm: The transmitter features a low battery alarm (auditory and flashing LED) to indicate when its batteries need replacement.
Flight Battery Status LED: The aircraft's flight battery status is indicated by an LED on the transmitter: Green for full charge, Yellow for partial charge, and Red for low charge.
Flight Modes:
- SAFE Mode: Provides self-leveling and limited pitch/roll angles, ideal for learning or relaxed flying. Indicated by two beeps and a blue flashing LED on the transmitter.
- AS3X Mode: Offers unlimited flight envelope for advanced maneuvers. Indicated by one beep and a red flashing LED on the transmitter.
Hand Launch: The aircraft can be hand-launched, preferably with assistance, in winds of 0-5 mph (0-8 km/h).
Ground Takeoff: With landing gear installed, the aircraft can take off from a hard, level runway in winds of 0-5 mph (0-8 km/h).
Adjusting Trim in Flight: Trim buttons on the transmitter allow for in-flight adjustments to correct any drift (up, down, left, or right) when the steering stick is neutral and throttle is at 50%.
Landing: To land, fly into the wind, keep wings level, lower throttle to 25%, then fully lower throttle and pull back on the steering stick near the ground.
Binding: The aircraft and transmitter must be bound to each other for control. The binding process involves connecting the flight battery, powering on the transmitter while holding the left control stick in, and waiting for the receiver LED to stop flashing.

Maintenance Features:

Battery Charging: The flight battery is charged using the included USB Li-Po charger. The charger's LED indicates charging status (solid red for charging, off for complete). It is crucial to disconnect the battery immediately after charging and allow the charger to cool.
Propeller Service: Propellers can be replaced if damaged. This involves carefully removing the spinner and the old propeller from the motor shaft (noting "L" or "R" indicators), then installing a new propeller with the size numbers facing out and reattaching the spinner with foam-safe CA adhesive.
Manual Adjusting Trim: If in-flight trim adjustments are insufficient, the metal connector (A) on the aircraft can be manually bent with pliers to correct persistent nose drift (narrow for nose up, widen for nose down). Short test flights are recommended after each adjustment.
Post-Flight Procedures: After flying, completely lower the throttle stick and keep the steering stick still for at least 5 seconds. Disconnect and remove the flight battery, then power off the transmitter. Fully charge the battery for the next flight.
Storage: Store the battery at room temperature in a dry area, within a temperature range of 40–120° F. Avoid storing the aircraft or battery in direct sunlight or hot, enclosed areas like a car, as this can damage the foam or cause fire. Always disconnect the battery from the aircraft before powering off the transmitter.
Pre-Flight Checks: Always perform a maintenance check on the aircraft and transmitter prior to and after every flight to ensure airworthiness.
General Safety: Never operate the aircraft with damaged wiring or components. Keep moving parts clean and dry. Avoid operating in rain, over people, roadways, structures, power lines, or near airports. Do not attempt to fly from a vehicle or within a structure. Never perform maintenance with the battery installed. Always use fully charged batteries and allow parts to cool after use. Remove batteries after use.
Troubleshooting Guide: The manual includes a comprehensive troubleshooting guide to address common issues such as the aircraft not responding, poor response, turning in one direction, rising steeply, not climbing, being difficult to launch, short flight time, or vibrating. Solutions often involve checking connections, adjusting trim, replacing batteries, or servicing propellers.