Overview
The Spektrum Avian 40A Dual Smart Lite ESC in Version C with IC3 connector is a compact and sophisticated electronic speed control designed for RC aircraft and multi-rotor applications. This smart ESC brings professional-grade performance to enthusiasts who demand reliability, intelligent firmware, and seamless integration with the Spektrum ecosystem. Whether you're building a high-performance RC plane, a precision aerial platform, or upgrading an existing brushless RC aircraft setup, the Avian 40A Dual Smart Lite delivers the advanced features you need at a price point that won't break the bank. The Smart capabilities mean this isn't just a simple speed controller — it's a connected component that can communicate with your transmitter, log flight data, and receive firmware updates to keep your equipment current with the latest performance enhancements.
Built for demanding UK RC flyers and hobby enthusiasts who refuse to compromise on quality, this Version C ESC is purpose-built for 3S and 4S LiPo battery systems, making it ideal for mid-range aircraft where you need reliable power delivery and intelligent monitoring. The dual protocol compatibility ensures broad receiver compatibility across the Spektrum range, giving you flexibility in your aircraft setup choices. RC model shop customers know that investing in quality electronics from trusted manufacturers like Spektrum means years of trouble-free operation and the confidence that comes with proven engineering.
Key Features
- Smart ESC Technology — This ESC incorporates Spektrum's intelligent firmware that allows real-time parameter adjustment, firmware updates, and performance monitoring through the optional Smart ESC Programmer, meaning you can fine-tune your aircraft's behaviour without replacing hardware.
- 40-Amp Continuous Rating — The 40-amp continuous current rating provides excellent headroom for typical 3S and 4S powered aircraft, delivering smooth, responsive throttle control with minimal voltage sag even during sustained high-power manoeuvres.
- 3S-4S LiPo Compatibility — Designed specifically for 3-cell and 4-cell lithium polymer batteries, this ESC optimises performance across the full voltage range of these battery types, protecting against over-discharge whilst maximising available power.
- IC3 Connector — The standardised IC3 battery connector ensures safe, reliable connections and is one of the most common connectors in mid-range RC aircraft, making battery compatibility straightforward and convenient.
- Dual Protocol Support — With dual protocol capability, this ESC works seamlessly with multiple Spektrum receiver types, giving you flexibility when building or upgrading your aircraft without being locked into a single receiver option.
- Compact Lite Design — The Lite designation means this ESC is optimised for weight-conscious builds where every gram matters, making it perfect for sport and precision aircraft where performance-to-weight ratio directly impacts flight characteristics.
- Programmable Parameters — When paired with the Smart ESC Programmer (sold separately), you can adjust throttle curves, brake intensity, rotation direction, frequency tuning, and other critical parameters to perfectly match your flying style and aircraft requirements.
- LiPo Battery Monitoring — The Smart ESC Programmer allows you to check the cell balance of your LiPo batteries, helping you maintain battery health and identify problem cells before they compromise flight safety.
Technical Performance
The Avian 40A Dual Smart Lite ESC represents a maturation of brushless ESC technology specifically optimised for the needs of serious RC aircraft pilots. With a continuous current rating of 40 amps, this controller comfortably handles the power demands of modern brushless outrunner motors typically found in 3S and 4S powered aircraft, from high-wing trainers to aggressive aerobatic platforms. The smart firmware architecture means this isn't a static piece of hardware — Spektrum regularly releases firmware updates that can enhance performance, add new features, and improve compatibility as the RC ecosystem evolves. The dual protocol implementation ensures you're not locked into a single receiver platform, providing valuable flexibility whether you're flying a simple stabilised platform or a complex aerial vehicle. The IC3 connector has become the industry standard for this class of aircraft, making battery compatibility and field replacement straightforward. Built with quality components throughout, the Avian 40A Dual Smart Lite delivers the reliability that UK RC enthusiasts expect from Spektrum, whether you're flying in challenging British weather conditions or testing your skills at your local flying field.
What's in the Box
- Spektrum Avian 40A Dual Smart Lite ESC Version C with IC3 connector
What You Need to Complete
- 3S or 4S LiPo battery with IC3 connector for power
- Spektrum compatible receiver with servo connectors
- Brushless motor rated for 3S-4S operation
- Aircraft airframe and associated RC components
- Smart ESC Programmer (optional but recommended for accessing full parameter adjustment and firmware update capabilities)
Frequently Asked Questions
- Can I use this ESC with a brushed motor? — No, the Avian 40A Dual Smart Lite is designed exclusively for brushless motors. If you need a brushed ESC, Spektrum offers the Firma brushed range which includes smart options with full parameter control.
- What battery does the Avian 40A Smart Lite need? — This ESC is specifically designed for 3S and 4S LiPo batteries with IC3 connectors. A 3S battery provides 11.1V nominal, whilst a 4S battery provides 14.8V nominal. For mid-range aircraft, 4S systems are increasingly popular as they provide better power margins.
- Do I need the Smart ESC Programmer to use this ESC? — No, the ESC works out-of-the-box with any Spektrum compatible receiver. However, the Smart ESC Programmer unlocks significantly more functionality including parameter adjustment, firmware updates, and LiPo battery cell balance checking, making it highly recommended for serious pilots.
- What is the difference between the Version A, B, and C Avian 40A models? — The source material indicates this is Version C, representing the latest iteration of the 40A Dual Smart Lite platform. Each version typically incorporates firmware improvements and minor hardware refinements based on user feedback and advancing technology.
- Is the Avian 40A suitable for beginners? — Yes, the smart capabilities and programmable parameters make it accessible to beginners whilst offering enough sophisticated features for experienced pilots. The built-in protections against over-discharge and the ability to check battery health through the Smart Programmer help prevent common damage scenarios.
- Can I use this ESC in multiple aircraft? — Absolutely, the IC3 connector and standard servo connectors mean you can move this ESC between compatible aircraft builds, making it a valuable long-term investment for expanding your RC fleet.
- What protocols does this ESC support? — The dual protocol design ensures compatibility with the broad range of Spektrum receivers, whether you're using conventional PWM receivers or more modern digital protocols, though the specific protocols are part of Spektrum's standard receiver compatibility.
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 Spektrum Avian 40A Dual Smart Lite ESC, 3S-4S (Version C): IC3 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.
- 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.
