EFL UMX Slow Ultra Stick BNF Basic with AS3X and SAFE Select A-EFLU03050

Name: EFL UMX Slow Ultra Stick BNF Basic with AS3X and SAFE Select A-EFLU03050
Brand: EFL
SKU: A-EFLU03050
Price: 131.00 GBP
Availability: InStock

Model No: A-EFLU03050

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£149.99

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1 Year Warranty

Product Details

The E-flite^® UMX^™ Slow Ultra Stick is an ultra-micro "slow flyer" that was inspired by classic "Stick" models of the past and has been scaled down from the Slow Ultra Stick 1.2m so it can be flown in even more places and smaller spaces - indoors or out!

Key Features

Ultra-micro sized to fly in yards, at parks, or even indoors in a garage, gymnasium, and other suitable spaces
Factory-installed control unit featuring a dual-protocol Spektrum 2.4GHz DSMX and SLT receiver, two servos, and an ESC
Ready for use with your compatible Spektrum DSMX or SLT-equipped transmitter, battery, and charger (sold separately)
Affordable 1S 100-210mAh batteries deliver a wide range of performance and flight times
Lightweight yet durable construction, including a "pop off" prop saver design to prevent damage

In The Box

(1) E-flite UMX Slow Ultra Stick with:
(1) Motor and Gearbox with Prop Saver (installed)
(1) Spektrum Dual-Protocol (DSMX and SLT) Receiver, ESC, and (2) Linear Servo Control Unit (installed)
(1) Product Manual

Needed to Complete

5+ channel Spektrum DSMX or SLT-compatible transmitter
1S 3.7V 100-210mAh LiPo battery with JST PH 1.25 (ultra micro) connector
Compatible LiPo battery charger

Introduction

Scaled down from the extremely popular Slow Ultra Stick 1.2m and inspired by the classic ParkZone Ember models, the E-flite UMX Slow Ultra Stick is an ultra-micro "slow flyer" that can be flown in even more places and smaller spaces! Use a range of 1S batteries for flying indoors in gymnasiums, garages, and other suitable spaces or to fly outside almost anywhere in calm to low wind conditions. The UMX Slow Ultra Stick is capable of slow and easy cruising and performing basic aerobatics including loops. You can even install the optional LED light set to fly in darker conditions and at night. Plus, you can choose between two factory-assembled versions: the convenient, all-in-one-box RTF (Ready-To-Fly) version that includes a Spektrum battery, charger, and an SLT6 transmitter equipped with a USB-C port for direct connection to a PC for easy plug-and-play use of the included trial version of the RealFlight Trainer Edition RC flight simulator. Or the BNF (Bind-N-Fly^®) Basic version that helps you lower costs by using your own compatible Spektrum DSMX/SLT-equipped transmitter, battery, and charger. Either way, you can be flying almost anywhere in just the time it takes to charge a battery!

Overview

The E-flite UMX Slow Ultra Stick is simple and affordable. It's also incredibly easy and fun to fly for low-time to experienced pilots looking for a no-hassles fly-almost-anywhere experience they can't get with any other model! Based on the more modern-day design of the Slow Ultra Stick 1.2m and inspired by similar "slow flyer" models from the past, it can be flown in even more places and smaller spaces - indoors and out. Use a 1S 100-150mAh battery to fly indoors in garages, conference rooms, and gymnasiums. Or, use up to a 210mAh battery to fly outdoors almost anywhere in calm to low wind conditions. You can even fly in lower light conditions and at night after installing the optional LED light set (EFL-1113)!

The Ready-To-Fly (RTF) version includes everything needed to fly in one box and is a perfect choice if you're looking for maximum convenience and value. From the Spektrum SLT6 2.4GHz transmitter you can use with other Bind-N-Fly^® (BNF) Basic aircraft compatible with SLT FHSS technology to the 1S 150mAh LiPo battery and a convenient USB charger that can be used with a variety of power sources, there's nothing extra you need to buy or provide! A BNF Basic version is also available for pilots who want to use their favorite Spektrum DSMX-equipped transmitter along with batteries and chargers they may already own. Both versions include exclusive AS3X^® and optional-use SAFE^® Select technologies, plus a reliable power system featuring a "pop off" prop saver design, a control unit including an ESC, servos, and a dual-protocol (DSMX and SLT FHSS) receiver that are factory-installed in the lightweight yet durable airframe that's nearly ready to fly right out of the box. Simply install the wing by quickly and easily snapping it into place and you can be flying in almost no time!

Although we recommend learning to fly RC with one of our purpose-built trainer aircraft, such as the HobbyZone^® Apprentice STOL S 700mm, the RTF version also includes a Steam^® key to download and activate a trial version of the RealFlight^® Trainer Edition RC flight simulator. The simulator features many of the most popular Horizon Hobby trainer airplanes, helicopters, and built-in Virtual Flight Instructor lessons. This helps new and low-time pilots learn to fly successfully by practicing on a desktop PC at home or on a laptop just about anywhere else! Simply use a USB-C cable to connect the included SLT6 transmitter to a compatible USB port on your computer to fly for up to 100 minutes. Then, you can purchase RealFlight Trainer Edition or Evolution to fly any time and for as long as you'd like!

Features

Inspired by the classic ParkZone Ember "slow flyer" models and scaled down from the very popular Slow Ultra Stick 1.2m
Ultra-micro sized to fly in yards, at parks, or even indoors in a garage, gymnasium, and other suitable spaces
Factory-installed control unit featuring a dual-protocol Spektrum 2.4GHz DSMX and SLT receiver, two servos, and an ESC
Ready for use with your compatible Spektrum DSMX or SLT-equipped transmitter, battery, and charger (sold separately)
Compatible with the DXS and SLT6 transmitters included with many RTF trainer models
Easier to fly with innovative and optional-use SAFE^® Select flight envelope protection
The unmatched stability and locked-in feel of expertly-tuned AS3X^® technology

Real-time battery voltage telemetry with compatible Spektrum transmitters
Affordable 1S 100-210mAh batteries deliver a wide range of performance and flight times
Lightweight yet durable construction, including a "pop off" prop saver design to prevent damage
Factory-assembled with a quick and easy-to-install/remove/replace wing that snaps into place
Fly in low light conditions and at night using the optional LED light kit/set (sold separately; EFL-1113)
Full line of replacement/spare parts available
No FAA registration or Remote ID required (under the 250-gram weight limit)

Skill Level 2 – Next Step After a Trainer, Some Experience Required

"Next Step" aircraft, like this one, are the best choice for those who have successfully learned to fly with a trainer and are ready to graduate to their next aircraft. It's also an easy and extremely fun to fly model for experienced pilots!

Are you new to flying RC (Radio Controlled) aircraft? Although the UMX Slow Ultra Stick is very easy to fly, we recommend learning to fly with one of our purpose-built trainer aircraft, such as the HobbyZone^® Apprentice STOL S 700mm. It's the most capable, durable, and easiest-to-fly ultra-micro trainer yet because it's equipped with exclusive and innovative SAFE technology that makes it possible for almost anyone to learn to fly successfully! The Ready-To-Fly (RTF) version includes everything needed to fly and is a perfect choice for a new RC pilot.

Uniquely Capable

The simple design was inspired by classic "Stick" models from the past and is scaled down from the more modern-day design of the Slow Ultra Stick 1.2m. This results in an ultra-micro-sized "slow flyer" that's easy and fun to fly in even more places and smaller spaces! From indoors in garages, conference rooms, and gymnasiums to outdoors in yards, parks, and almost anywhere else.

Durable Design

The unique "pop off" prop saver design plus the lightweight yet durable airframe is tough enough to handle everyday flying punishment without getting bent out of shape. And if you damage any airframe parts or components and can't repair them, a full line of replacement/spare parts is readily available.

Factory Assembled

The UMX Slow Ultra Stick arrives factory-assembled and nearly ready to fly right out of the box. Simply install the one-piece wing that quickly and easily snaps into place without fasteners or tools, and you're ready to fly!

Optional LED Lights

Install the optional LED light set (sold separately; EFL-1113) for improved visibility during daylight conditions and to fly in darker conditions or even at night.

Bind-N-Fly Completion Level Advantage

Already own a Spektrum transmitter? Bind-N-Fly (BNF) aircraft make getting into the air quickly and with the best control experience possible easier than ever. They come out of the box with the power system, servos and a Spektrum 2.4GHz receiver installed so all you need to do is bind the receiver to a compatible transmitter, finish any final assembly and fly!

This Bind-N-Fly Basic model is equipped with a Spektrum 2.4GHz DSMX receiver featuring AS3X (Artificial Stabilization-3-aXis) technology that works behind the scenes to smooth out the effects of wind and turbulence so you enjoy a sense of stability and precision that makes it feel like you're flying a much larger, expertly tuned aircraft.

If this is your first model of its type, or you want an extra margin of safety while familiarizing yourself with the airplane, you can enable the optional-use SAFE Select flight envelope protection technology built into the receiver. No programming is required.

With SAFE Select enabled, you get:

Pitch and Bank Angle Limits

These envelope limits keep the airplane from rolling or pitching upside down. They also prevent excessive climb or dive angles.

Automatic Self-Leveling

The airplane instantly returns to and holds level flight when the sticks are released and in the center position. It's also helpful for keeping the wings level during takeoffs/launches and landings.

Easy Switch Assignment-No Complex Programming Required

The simple procedure for assigning a transmitter switch to turn SAFE Select features on and off doesn't require any complex programming and takes just a few seconds. For UMX models like this one, SAFE Select is automatically assigned to channel 5 (Gear) so you can turn it on and off with any switch assigned to that channel (switch A by default on most Spektrum computer transmitters).

Wingspan: 501.5 mm
Battery type: 1S 3.7V 100-210mAh LiPo battery with JST PH 1.25 (ultra micro) connector
Weight: 42 g
Length: 441.5 mm

The EFL UMX Twin Otter 501mm BNF Basic is designed for pilots who value scale accuracy, micro performance, and smooth twin-motor handling in tight spaces. With a compact wingspan of 501.5mm and ultra-lightweight 42g frame, this aircraft delivers excellent agility whether flying indoors or out in calm conditions. The dual-motor configuration provides consistent power, while its compact airframe makes it the ideal choice for limited airspace environments.

What are the key features of the EFL UMX Twin Otter 501mm BNF Basic?

Ultra micro wingspan – At 501.5mm, it offers excellent manoeuvrability for indoor and park flyers.
Lightweight design – Weighing only 42g, flight efficiency and responsiveness are significantly enhanced.
Precision twin-motor setup – Delivers stable thrust and improved control at low and mid-range speeds.
High-efficiency battery compatibility – Supports 1S 3.7V 100–210mAh LiPo for optimised power delivery.
Compact fuselage – At just 441.5mm in length, transport and storage are straightforward and convenient.
Plug-and-play radio compatibility – BNF Basic format allows pairing with Spektrum transmitters featuring DSMX/DSM2 protocols.
Durable construction – Ideal for beginner pilots and intermediate flyers seeking a resilient micro aircraft.
Realistic scale detailing – Captures the charm and appearance of full-size twin otter aircraft.

This compact aircraft is best suited for pilots seeking a blend of realism and performance in an accessible form factor. Whether flying around your garden or making tight turns in indoor venues, the UMX Twin Otter meets the needs of RC hobbyists at every level. Its precision-engineered twin motors and ultra micro footprint allow for more creative flight paths and smoother landings, even in restricted areas.

Finish your setup with a compatible 1S LiPo battery and a suitable Spektrum transmitter, and you'll be airborne in minutes. For those wanting an efficient and compact twin-motor RC aircraft, buy EFLU03050 today.

Brand and Model
Brand: EFL
Model: EFLU03050
Appliance Type
RC Plane, BNF Basic, Ultra Micro Aircraft
Wingspan
501.5mm – Provides agility for both indoor and confined outdoor flying zones
Length
441.5mm – Short fuselage length makes storage and transport hassle-free
Weight
42g – Ultra-lightweight for stable slow flight and increased efficiency
Battery Type
1S 3.7V 100–210mAh LiPo with JST PH 1.25 connector – Compact power for extended micro flights
Motor Configuration
Twin brushless outrunner motors – Deliver stable, smooth thrust for consistent performance
Connector Type
JST PH 1.25 – Standard ultra micro connector for wide battery compatibility
Product Format
BNF Basic – Requires compatible DSMX/DSM2 transmitter and 1S LiPo battery (sold separately)

We want to make sure your delivery goes smoothly, so here are some important details about our service:

For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.