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Take to the Skies with Spektrum Avian Brushless Motors for Fixed-wing Models
The combination of superior performance, high reliability and user-friendly features makes the Spektrum Avian Brushless Motors an excellent choice for your next aircraft project. Plus, the wide selection means there's Avian Brushless motor that's ideal for whatever the application, including brushed-to-brushless upgrades as well as combustion-to-electric conversions. Equip your airplane with an Avian motor to compliment your Smart Technology equipped models!
Key Benefits
- Rapid Acceleration and Extreme Torque: Expertly engineered to deliver fast, smooth and precise acceleration and power.
- Reliable and Virtually Maintenance-free: Equipped with double-shielded sealed bearings, precision balanced motor bell and gold-plated bullet connectors.
- Excellent Cooling: Engineered to help airflow move through the motor for efficient cooling during and after flight.
Features
- Lightweight design
- Powerful and durable Rare-Earth Neodymium magnets
- 14-pole stator for smooth and precise propulsion
- Includes all required hardware: preinstalled gold plated bullet connectors, aluminum motor mount, prop adapter and female ESC connectors
- Perfect match for the Spektrum Smart Avian 60 amp ESC
- Perfect electric conversion upgrade for .80 size glow combustion power systems
Important Specs
- Recommended Voltage Range – 18.5 - 22.2V / 5-6S LiPo
- Recommended Propeller Range – 15x6 to 15x8 Electric Propeller
- Recommended Model Flying weight – 3D 3175g (7 lbs) - 5215g (11.5 lbs)
- Max Wattage – 900w
- Max Current – Max Burst Amps (65A) Max Continuous Amps (55A)
Product Description of Spektrum M-SPMXAM4740 Avian 5055-500Kv brushless outrunner motor
The Spektrum M-SPMXAM4740 Avian 5055-500Kv brushless outrunner motor for fixed-wing aircraft is precision-engineered for pilots seeking a torque-rich, high-efficiency upgrade for .80-size glow-to-electric conversions. Designed to deliver rapid acceleration and smooth throttle response, this mid-size motor supports 5S–6S LiPo setups and integrates seamlessly with Smart ESC systems. With a 14-pole stator, rare-earth magnets, and double-shielded bearings, the Spektrum M-SPMXAM4740 motor offers reliable performance and minimal maintenance across sport and 3D flight profiles. Whether you're retrofitting a combustion-powered airframe or building a new electric model, this motor provides the power and control needed to elevate your flying experience.
Key features of the Spektrum M-SPMXAM4740 motor
- 14-pole stator – delivers smooth and precise propulsion for sport and 3D aircraft
- Double-shielded bearings – reduce friction and extend motor lifespan with minimal maintenance
- Efficient cooling airflow – engineered to channel air through the motor for thermal stability
- Preinstalled connectors – includes gold-plated 4mm bullet terminals for secure ESC integration
- Glow-to-electric compatibility – ideal for converting .80-size combustion aircraft to clean electric power
- Smart ESC pairing – optimized for use with Spektrum Smart Avian 60A ESCs
What makes the 14-pole stator ideal for fixed-wing propulsion?
The Spektrum M-SPMXAM4740 motor with 4mm bullet connectors and 14-pole stator features a high-pole-count design that enhances magnetic resolution and reduces cogging. This results in smoother throttle transitions, quieter operation, and more precise control during aerobatic maneuvers. The 14-pole stator also improves torque consistency at low RPMs, making it ideal for sport aircraft and 3D platforms that require stable lift and responsive pitch control. Combined with rare-earth neodymium magnets, the stator configuration ensures long-lasting performance and minimal vibration across all flight conditions.
How do the double-shielded bearings improve reliability?
The Spektrum M-SPMXAM4740 with rare-earth magnets and double-shielded bearings is built for durability and low maintenance. The sealed bearing design prevents debris ingress and reduces internal friction, allowing for smoother rotation and extended motor life. This is especially valuable in outdoor flying environments where dust and vibration can compromise performance. By minimizing wear and supporting consistent shaft alignment, the bearings contribute to reliable operation across multiple flight sessions, making the motor a dependable choice for both casual and competitive pilots.
Is this motor suitable for glow-to-electric conversions?
Yes. The Spektrum M-SPMXAM4740 electric upgrade for .80 glow-to-electric conversions is specifically designed to replace combustion systems with clean, efficient brushless power. Its 500Kv rating and mid-size 5055 class make it compatible with airframes originally built for .80-size glow engines. The motor supports 15x6 to 15x8 electric propellers and delivers up to 900 watts of burst power, enabling equivalent or superior performance without the noise, fumes, or maintenance of fuel-based setups. For builders seeking a streamlined conversion process, the included prop adapter and mounting hardware simplify installation and alignment.
How does cooling airflow enhance performance?
The Spektrum 500Kv motor for sport and 3D aircraft with efficient cooling airflow is engineered to channel air through its housing, promoting thermal stability during high-load operation. This airflow design helps dissipate heat generated during extended throttle use, protecting internal components and preserving output consistency. For pilots flying aerobatic routines or long-duration missions, the cooling system ensures that the motor remains responsive and safe throughout the flight. Combined with brushless efficiency, this feature supports sustained performance without thermal stress or power degradation.
What integration benefits come with Smart ESC compatibility?
The Spektrum Avian motor for 5S–6S LiPo setups and Smart ESC compatibility is optimized for seamless pairing with Spektrum Smart Avian 60A ESCs. This integration enables telemetry feedback, adaptive timing control, and simplified setup for electric aircraft. The motor’s electrical specifications align with Smart ESC parameters, ensuring safe current handling and efficient power delivery. For users building Smart Technology-equipped models, this compatibility enhances system awareness and flight confidence, making the motor a strategic component in modern electric aircraft builds.
Why is this motor a versatile upgrade for sport and 3D flying?
The Spektrum M-SPMXAM4740 Avian 5055-500Kv brushless outrunner motor for fixed-wing aircraft combines torque-rich propulsion, precision control, and installation simplicity in a single, performance-driven package. Its 500Kv rating supports smooth RPM transitions, while the 14-pole stator and rare-earth magnets deliver consistent thrust and responsiveness. Preinstalled connectors and included mounting hardware reduce setup time, and the motor’s compatibility with 5S–6S LiPo systems ensures flexible power options. For pilots seeking the best Spektrum upgrade for torque-rich propulsion and smooth throttle response, this motor delivers the control and reliability needed for advanced flight profiles.
For builders converting combustion airframes or assembling new electric platforms, the affordable Spektrum Avian 5055-500Kv motor for 15x6 to 15x8 propeller setups offers a complete solution for high-performance flight. Buy Spektrum M-SPMXAM4740 motor for combustion-to-electric airplane conversions.
Technical Specifications of Spektrum M-SPMXAM4740 Avian 5055-500Kv brushless outrunner motor
Brand, Model and Product Type
- Brand: Spektrum
- Model: M-SPMXAM4740
- Product Type: Spektrum M-SPMXAM4740 Avian 5055-500Kv brushless outrunner motor for fixed-wing aircraft, Spektrum M-SPMXAM4740 motor with 4mm bullet connectors and 14-pole stator, Spektrum M-SPMXAM4740 electric upgrade for .80 glow-to-electric conversions, Spektrum M-SPMXAM4740 with rare-earth magnets and double-shielded bearings, Spektrum Avian motor for 5S–6S LiPo setups and Smart ESC compatibility
Dimensions
- Outer Diameter: 5.0 cm – compact mid-size motor housing suitable for .80-size aircraft frames
- Product Length: 5.5 cm – supports efficient airflow and secure mounting
- Product Weight: 298 g (10.5 oz) – lightweight for improved thrust-to-weight ratio
- Shaft Diameter: 0.8 cm – compatible with standard prop adapters for fixed-wing aircraft
- Shaft Length: 2.0 cm – supports secure propeller installation and alignment
Electrical and Mechanical Specifications
- Kv Rating: 500Kv – delivers torque-rich propulsion and smooth throttle response for sport and 3D aircraft
- Voltage Range: 18.5V to 22.2V – compatible with 5S–6S LiPo power systems
- Motor Type: Brushless outrunner – engineered for high efficiency and minimal maintenance
- Motor Class: Mid Size – ideal for .80 glow-to-electric conversions and fixed-wing builds
- Motor Output Lead: 4 – supports balanced current distribution and ESC connectivity
- Connector Type: 4mm bullet connectors – gold-plated and preinstalled for secure high-current connections
- Sensor Type: Sensorless – simplifies setup and reduces mechanical complexity
- Integrated ESC: No – requires external ESC pairing, recommended with Spektrum Smart Avian 60A ESC
- Adjustable Timing: No – factory-set timing for consistent performance
- Constant Wattage: 750–999W – supports sustained power output for demanding flight profiles
- Max Wattage: 900W – delivers peak performance during full-throttle bursts
- Max Burst Amps: 65A – handles short-duration high-load conditions with stability
- Max Continuous Amps: 55A – supports extended flight sessions without thermal stress
- Cooling System: Airflow-optimized housing – promotes efficient heat dissipation during and after flight
- Magnet Type: Rare-earth neodymium – ensures strong magnetic field and durable torque output
- Stator Configuration: 14-pole – enhances propulsion smoothness and throttle precision
Recommended Setup Parameters
- Recommended Propeller Range: 15x6 to 15x8 electric propellers – optimized for torque and efficiency
- Recommended Flying Weight: 3.175 kg to 5.215 kg (7 to 11.5 lbs) – suitable for sport and 3D aircraft
What’s in the Box
- (1) Spektrum Avian 5055-500Kv Brushless Outrunner Motor – model M-SPMXAM4740
- (1) Aluminum motor mount
- (1) Prop adapter
- (1) Set of female ESC connectors
What You Require
- (1) Compatible ESC – Spektrum Smart Avian 60A ESC recommended for optimal performance
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.
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- 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.
