Overview
The SPM 70-amp 3S/4S ESC with Telemetry for the Habu STS represents a significant advancement in electronic speed controller technology for RC aircraft enthusiasts across the UK. This brushless ESC is specifically engineered to deliver reliable, responsive power management for electric-powered aircraft models, making it an ideal choice for both seasoned RC pilots and those stepping up from brushed systems. The integrated telemetry capability sets this controller apart from conventional ESCs, providing real-time data feedback that allows you to monitor your aircraft's performance during flight and make informed adjustments to optimise your flying experience.
Spektrum, a globally recognised leader in RC electronics and wireless systems, has designed this 70-amp ESC to handle the demanding power requirements of 3-cell and 4-cell lithium polymer battery systems. Whether you're flying a mid-sized electric aircraft or a performance-oriented aerobatic model, this brushless ESC offers the precision control and reliability that competitive pilots demand. The addition of telemetry functionality transforms how you interact with your aircraft, giving you access to critical flight data that was previously unavailable without additional monitoring equipment.
For RC aircraft enthusiasts in the UK seeking a dependable brushless speed controller with advanced monitoring capabilities, the SPM 70-amp ESC delivers exceptional value and performance. The combination of robust 70-amp continuous handling, intelligent power management, and real-time telemetry feedback makes this controller suitable for a wide range of electric aircraft applications, from sport flying to competitive aerobatic manoeuvres.
Key Features
- 70-Amp Continuous Current Rating — This ESC is rated to handle up to 70 amps of continuous current, providing ample power delivery headroom for brushless motors in the mid-sized to large aircraft category and ensuring stable performance even during sustained high-throttle flight segments.
- Integrated Telemetry System — The telemetry capability allows the ESC to transmit real-time flight data back to your transmitter, giving you immediate feedback on performance metrics that help you understand how your aircraft is performing and identify any potential issues before they become serious problems.
- 3S/4S Battery Compatibility — Designed to work seamlessly with both 3-cell (11.1V nominal) and 4-cell (14.8V nominal) lithium polymer battery systems, this ESC offers flexibility in power source selection and allows you to choose the battery configuration that best suits your aircraft and flight style.
- Brushless Motor Support — Purpose-built for brushless motor systems, this ESC delivers the precise electronic commutation required for efficient, smooth, and powerful brushless flight performance, with superior reliability compared to brushed alternatives.
- Spektrum Ecosystem Compatibility — As a Spektrum component, this ESC integrates seamlessly with Spektrum transmitters and receivers, allowing you to access telemetry data and controller features through your existing Spektrum radio system without requiring additional hardware or adapters.
- Advanced Power Management — The ESC incorporates intelligent electronic management systems that protect your equipment from over-current conditions, voltage spikes, and thermal stress, extending the operational lifespan of both the controller and your motor.
- Programmable Settings — Like most modern brushless ESCs, this controller allows you to adjust parameters such as throttle range, braking strength, and acceleration characteristics to fine-tune the flying characteristics of your aircraft to your preferences.
Technical Performance
The SPM 70-amp 3S/4S ESC represents engineering excellence in brushless motor control technology. With a continuous current rating of 70 amps, this controller sits comfortably in the mid-to-heavy-duty category, making it suitable for brushless motors typically found in sport and scale electric aircraft. The ESC's dual voltage compatibility with both 3-cell (11.1V) and 4-cell (14.8V) lithium polymer batteries ensures you have flexibility in power source selection, allowing you to choose the battery configuration that optimises performance, flight duration, and weight distribution for your specific aircraft model. The integrated telemetry system continuously monitors and reports critical flight parameters, providing data transmission that integrates with your Spektrum radio system. The controller's brushless-specific circuitry delivers precise electronic commutation to brushless motors, ensuring smooth power delivery across the entire throttle range whilst maintaining exceptional efficiency. The engineering quality of Spektrum electronics is evident in the robust construction and advanced protection systems built into this ESC, including safeguards against thermal overload, voltage anomalies, and current spikes. For UK RC aircraft pilots seeking reliable brushless ESC performance with advanced monitoring capabilities, this 70-amp controller delivers the consistent, dependable operation required for both recreational flying and competitive flight applications.
What's in the Box
- SPM 70-Amp Brushless ESC with integrated telemetry
- Connection leads and hardware as specified by Spektrum
Frequently Asked Questions
- Is the SPM 70-amp ESC suitable for beginners to RC aircraft flying? — Whilst this ESC is technically advanced with telemetry capabilities, it is an excellent choice for intermediate and advanced pilots who want to learn about performance monitoring and aircraft optimisation. Beginners might benefit from starting with a simpler ESC, but this controller will serve you well as you progress and develop your skills in RC aircraft piloting.
- What battery voltage and cell count does this ESC require? — This ESC is designed to work with both 3-cell (3S) lithium polymer batteries, which provide approximately 11.1 volts nominal, and 4-cell (4S) lithium polymer batteries, which provide approximately 14.8 volts nominal. This dual compatibility gives you flexibility in choosing your power source.
- How does the telemetry system work on this ESC? — The integrated telemetry system continuously monitors flight performance data and transmits this information back to your Spektrum transmitter and receiver system. This allows you to view real-time performance metrics during flight, helping you optimise your aircraft's setup and flight characteristics.
- What makes a 70-amp ESC different from lower-amperage controllers? — A 70-amp ESC can handle higher-power brushless motors and deliver more current to the motor than lower-amperage controllers. This makes it suitable for larger aircraft, more powerful motors, and applications requiring sustained high-throttle performance, whilst smaller ESCs might be limited to lighter aircraft or motors with lower power requirements.
- Is this ESC programmable? — Yes, this brushless ESC incorporates programmable settings that allow you to adjust throttle response, braking characteristics, and other operational parameters to suit your aircraft and flying style. Programming is typically accomplished through your Spektrum transmitter interface.
- What aircraft types is this ESC suitable for? — The SPM 70-amp ESC is designed for mid-sized to larger electric aircraft, including sport aerobatic models, scale aircraft, high-performance trainers, and competition aerobatic aircraft. It is particularly well-suited for aircraft utilising brushless motors in the power range typically found in these categories.
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 SPM 70-amp 3S/4S ESC w/Telemetry: Habu STS P-SPMXAE0070 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.
