Overview
The Spektrum Avian 70-Amp Smart Lite Brushless ESC is a versatile electronic speed controller designed for intermediate to advanced RC aircraft pilots. This 3S-6S compatible controller delivers reliable power management and precision control for a wide range of electric-powered RC aeroplanes. Whether you're flying an E-flite T-28 Trojan, P-47 Razorback, Viper 64mm, or any other 70-amp capable aircraft, this Smart Lite ESC offers the programming flexibility and consistent performance that serious RC enthusiasts demand. The IC3 connector specification ensures compatibility with popular Spektrum receiver systems, making integration into your existing RC setup straightforward and hassle-free.
Designed with the experienced RC pilot in mind, the Avian 70-Amp Smart Lite Brushless ESC combines compact dimensions with powerful electronic management capabilities. This brushless ESC represents an excellent choice for those upgrading from basic speed controllers or replacing worn components in their favourite aircraft. The Smart Lite designation indicates a balance between full-featured Smart ESCs and more basic alternatives, providing programmable parameters without unnecessary complexity. For UK RC enthusiasts seeking a reliable brushless electronic speed controller for their aircraft collection, this Spektrum ESC delivers the quality, support, and performance you'd expect from an authorised Spektrum dealer.
As a direct replacement option for specific E-flite aircraft models, this ESC comes factory-matched to deliver optimal performance and safety. The adjustable timing feature allows experienced pilots to fine-tune throttle response and motor acceleration to suit their flying style and aircraft characteristics. The Smart technology integration means this controller communicates with compatible Spektrum receivers for real-time telemetry and diagnostics, helping you monitor your aircraft's electrical systems during flight.
Key Features
- 70-Amp Continuous Current Rating — This robust amperage capacity makes the ESC suitable for powering medium to high-performance brushless motors in RC aircraft, ensuring sustained power delivery during aggressive manoeuvres and sustained climbs without thermal throttling.
- 3S to 6S Battery Compatibility — The wide voltage range means you can use 3-cell, 4-cell, 5-cell, or 6-cell lithium polymer (LiPo) batteries, giving you flexibility in battery selection and allowing you to match power output to your specific aircraft requirements.
- Smart Technology Integration — This ESC features Spektrum's Smart system, which enables real-time communication with compatible receivers and transmitters, allowing you to monitor battery voltage, temperature, and amperage draw during flight for enhanced safety and performance optimisation.
- IC3 Connector System — The IC3 connection standard ensures reliable compatibility with Spektrum receivers and allows quick, secure connection changes when swapping equipment between aircraft or upgrading your RC setup.
- Adjustable Timing Capability — Pilots can modify the motor commutation timing to optimise throttle response, motor efficiency, and overall flight characteristics, with the ability to dial in the perfect setup for their specific flying style and aircraft configuration.
- Programmable Parameters — Beyond basic on-off functionality, this ESC offers multiple programming options for customising performance characteristics, safety features, and failsafe behaviour to match your preferences and equipment.
- Smart Lite Design Philosophy — The Smart Lite designation means this controller avoids unnecessary features whilst retaining essential programmability and diagnostics, resulting in a straightforward, reliable speed controller that experienced pilots appreciate.
- Direct Replacement Compatibility — This ESC is engineered as a drop-in replacement for E-flite T-28 Trojan 1.2m, E-flite P-47 Razorback 1.2m, and E-flite Viper 64mm aircraft, ensuring perfect fit and optimal performance in these models.
Technical Performance
The Spektrum Avian 70-Amp Smart Lite Brushless ESC represents a well-engineered solution for intermediate to advanced RC aircraft applications requiring reliable power management and electronic control. Operating across a voltage range from 3S to 6S lithium polymer batteries (11.1V to 22.2V nominal), this controller handles the varying power demands of different aircraft configurations and flying styles. The 70-amp continuous current rating provides substantial power delivery capability whilst maintaining robust thermal management to prevent overheating during sustained high-throttle operation. The brushless architecture eliminates the wear and maintenance associated with brushed motors, whilst the ESC's own cooling design ensures reliable operation even during extended flying sessions. Construction quality reflects Spektrum's reputation for producing durable, reliable RC electronics — the circuitry is designed to withstand the vibration, temperature fluctuations, and electrical stresses inherent in RC aircraft operation. The IC3 connector provides a secure, industry-standard interface for power and signal connections, whilst internal firmware supports advanced features including adjustable timing parameters that allow experienced pilots to optimise performance characteristics. Battery compatibility spanning 3S through 6S means you can progressively upgrade your power system or maintain multiple battery packs of different capacities without needing different speed controllers. The Smart technology implementation enables telemetry data transmission to compatible receivers, allowing real-time monitoring of electrical system parameters that help ensure safe operation and predictable aircraft behaviour.
What's in the Box
- Avian 70-Amp Smart Lite Brushless ESC, 3S-6S: IC3 (Version E)
Frequently Asked Questions
- Is the Avian 70-Amp Smart Lite Brushless ESC suitable for beginner pilots? — This ESC is best suited to intermediate and advanced RC aircraft pilots who understand battery management, motor characteristics, and basic troubleshooting. Whilst the Smart Lite design is more accessible than full Smart ESCs, beginners should ensure they understand lithium polymer battery safety, proper charging procedures, and ESC programming before operating this controller. If you're new to brushless RC aircraft, we recommend consulting with experienced RC enthusiasts or starting with our beginner-focused aircraft and ESC combinations.
- What battery types are compatible with this ESC? — The Avian 70-Amp Smart Lite is designed specifically for lithium polymer (LiPo) batteries in 3S, 4S, 5S, or 6S configurations, corresponding to 11.1V, 14.8V, 18.5V, and 22.2V nominal voltages respectively. The wide voltage range allows you to use virtually any standard RC aircraft LiPo battery within these cell count parameters, though you should match battery capacity and discharge rating to your aircraft's power requirements and the ESC's 70-amp specification.
- What aircraft is this ESC designed for? — Spektrum specifically identifies this unit as the replacement ESC for the E-flite T-28 Trojan 1.2m, E-flite P-47 Razorback 1.2m, and E-flite Viper 64mm aircraft. However, any RC aircraft using a brushless motor compatible with 70-amp power delivery and accepting IC3 connectors can utilise this controller, making it a flexible option for retrofitting or upgrading existing aircraft.
- What does Smart Lite mean compared to standard Smart ESCs? — Smart Lite ESCs provide programmable parameters and telemetry capabilities similar to full Smart controllers, but with a more streamlined feature set and simpler interface. They offer the reliability and smart monitoring benefits without overwhelming users with excessive customisation options. Compared to non-Smart ESCs, the Smart Lite still provides real-time telemetry data transmission to compatible Spektrum receivers, allowing you to monitor battery voltage and temperature during flight.
- How do I programme the timing adjustments? — Programming procedures for adjustable timing typically involve accessing your ESC settings through compatible Spektrum software or directly via your transmitter if it supports ESC programming. The instruction manual included with your ESC provides detailed step-by-step guidance for accessing timing parameters and other programmable features, ensuring you can safely and correctly configure these settings for your specific aircraft.
- Is this ESC waterproof or weather resistant? — No specific waterproof or weather-resistant rating is provided for this ESC. Whilst many RC pilots operate in damp conditions, we recommend protecting the controller from direct water exposure and allowing it to dry completely if exposed to moisture. The IC3 connectors should remain dry during operation to ensure reliable electrical contact and prevent corrosion.
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 Avian 70-Amp Smart Lite Brushless ESC, 3S-6S: IC3 Ver. E P-SPMXAE70E 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.
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