Overview
The E-Flite 6-Ch DSMX Brushless ESC/Receiver with AS3X and SAFE (model Z-EFLA6421BLA) represents a sophisticated integrated solution for RC enthusiasts looking to upgrade or build brushless-powered aircraft. This combined electronic speed controller and receiver unit simplifies installation by eliminating the need for separate components, making it an ideal choice for builders of electric RC planes, gliders, and other aircraft across the UK RC hobby market. Whether you're a seasoned flyer seeking enhanced stability and safety features or an intermediate pilot looking to transition to brushless power, this unit delivers professional-grade performance in a compact, integrated package.
What sets this component apart is the integration of E-Flite's renowned AS3X (Assisted Stabilisation 3-Axis) technology and SAFE (Sensor Assisted Flight Envelope) protocols directly into the receiver itself. These flight stabilisation systems work together to provide automatic stabilisation across three axes, reducing the workload on the pilot and helping to prevent dangerous stalls or unusual attitudes during flight. For RC aircraft enthusiasts in the UK seeking reliable, intelligent flight control, this represents a significant step forward in ease of use and safety.
As a dedicated RC retailer, RC Model Shop stocks this E-Flite component as part of our comprehensive range of brushless RC electronics and aircraft spares. The Z-EFLA6421BLA is engineered for compatibility with the DSMX radio protocol, ensuring seamless integration with compatible Spektrum transmitters and offering the frequency hopping and security benefits that modern RC flyers demand.
Key Features
- 6-Channel DSMX Receiver — The integrated six-channel receiver provides comprehensive control inputs for complex aircraft configurations, supporting elevator, aileron, rudder, throttle, and two additional auxiliary channels for landing gear, flaps, retracts or other functions. This multi-channel capability allows you to build and control more sophisticated RC aircraft models without requiring multiple receiver units.
- Brushless Electronic Speed Controller — The built-in brushless ESC eliminates the need for a separate speed controller, reducing weight, complexity and installation time. Brushless motors are more efficient, quieter and require less maintenance than brushed alternatives, delivering longer flight times and more consistent power delivery throughout your flying session.
- AS3X Flight Stabilisation Technology — Integrated Assisted Stabilisation 3-Axis (AS3X) technology automatically corrects roll, pitch and yaw disturbances caused by wind or turbulence, making your RC aircraft significantly easier to fly and more stable in challenging conditions. This feature is invaluable for building confidence and improving control precision, particularly beneficial for intermediate-level pilots.
- SAFE Flight Envelope Protection — The SAFE (Sensor Assisted Flight Envelope) system prevents dangerous manoeuvres by limiting pitch and roll angles to safe parameters, protecting against stalls and crashes caused by over-control. This active safety feature acts as a failsafe, automatically returning your aircraft to level flight if control inputs exceed safe limits.
- DSMX Protocol Compatibility — DSMX (Digital Spectrum Modulation) technology provides frequency hopping, advanced interference rejection and secure communication between transmitter and receiver. This modern protocol ensures reliable control even in RF-crowded environments and offers superior security compared to older systems.
- Integrated Design — By combining the receiver and ESC into a single compact unit, this component reduces overall system weight, simplifies installation wiring, and minimises the number of connections required. This integration also reduces potential failure points and streamlines the build process for RC aircraft projects.
Technical Performance
The E-Flite Z-EFLA6421BLA is engineered as a professional-grade integrated receiver and speed controller for electric RC aircraft applications. The six-channel DSMX receiver provides full digital communication with compatible Spektrum transmitters, delivering the channel count necessary for sophisticated aircraft including models with retractable landing gear, flaps, and other auxiliary systems. The integrated brushless ESC manages power delivery to brushless outrunner or inrunner motors, providing smooth acceleration and efficient power utilisation. AS3X stabilisation continuously monitors aircraft attitude using integrated gyroscopic sensors and automatically applies corrective servo inputs to maintain stable flight, whilst SAFE technology actively monitors flight envelope parameters and prevents dangerous attitudes. The unit is designed for integration into various RC aircraft platforms and supports battery configurations compatible with brushless motor systems. Construction utilises quality electronic components rated for reliable operation in the demanding environment of powered flight, with integrated circuitry eliminating the need for separate receiver and ESC modules. The brushless ESC design means no brush maintenance is required, contributing to extended operational life and consistent performance across numerous flight cycles. This component represents a sophisticated choice for RC aircraft builders seeking integrated electronics with advanced flight control capabilities.
What's in the Box
- E-Flite 6-Ch DSMX Brushless ESC/Receiver unit with AS3X and SAFE
Frequently Asked Questions
- Is the E-Flite 6-Ch DSMX Brushless ESC/Receiver suitable for beginner RC pilots? — This is an intermediate to advanced component best suited to pilots with existing experience in RC aircraft assembly and operation. The SAFE and AS3X technologies do provide significant assistance in flying, making it more forgiving than basic receivers, however installation requires understanding of aircraft wiring, servo configuration and brushless motor principles. If you are completely new to RC aircraft, starting with a ready-to-fly model before upgrading to components like this is advisable.
- What transmitter do I need to use with this receiver? — This receiver operates on the DSMX protocol and therefore requires a compatible Spektrum DSMX transmitter. The transmitter must be bound to the receiver during setup. Spektrum offers a range of transmitters across different budgets and feature sets, all compatible with DSMX receivers.
- What motor types can I use with this ESC? — The integrated brushless ESC is designed for brushless outrunner or inrunner motors suitable for RC aircraft applications. You should match the motor's power rating and voltage requirements to the ESC's specifications and your intended aircraft design. Always consult the E-Flite documentation for approved motor options.
- What battery configuration does this ESC support? — Brushless RC aircraft systems typically operate on LiPo (Lithium Polymer) battery packs in configurations ranging from 2S to 6S depending on the specific motor and ESC rating. You must refer to the product specifications and manual to determine the exact battery configuration supported by this unit, and match the battery voltage to both the ESC and motor requirements.
- Can I use this in different aircraft types? — Yes, this six-channel receiver with integrated ESC can be installed in various electric RC aircraft designs including high-wing trainers, aerobatic models, and scale aircraft, provided the aircraft power requirements match the ESC capability and the aircraft configuration uses no more than six control channels.
- How do AS3X and SAFE improve my flying experience? — AS3X automatically stabilises your aircraft in three axes (roll, pitch and yaw), helping to compensate for wind gusts and pilot input errors, making the aircraft easier to control and more forgiving of mistakes. SAFE actively monitors flight envelope parameters and prevents dangerous attitudes like extreme pitch angles that could lead to stalls or loss of control, essentially acting as an automatic safeguard against over-control.
- Is this receiver waterproof? — Being a standard receiver/ESC unit designed for aircraft, it is not intended for water operation. However, the electronics are typically housed in protective shrink wrap or encasing to protect against moisture during normal operation. Always protect the unit from heavy rain or submersion.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the EFL 6-Ch DSMX Brushless ESC/Receiver with AS3X & SAFE Z-EFLA6421BLA today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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.
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- 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.
