How to match an electric motor to an RC aircraft
A practical guide to motor KV, voltage, current, thrust, aircraft weight and flight style so the power system matches the model.
Avian 4240-800kV Outrunner Brushless Motor
Prices are intentionally not displayed on the site.
Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Avian 4240-800kV Outrunner Brushless Motor is a Spektrum product intended for aircraft, helicopter, sailplane or multirotor radio installations where reliable control and setup clarity matter. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum electric motor range.
- Intended for aircraft, helicopter, sailplane or multirotor radio installations where reliable control and setup clarity matter.
- Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
- Spektrum Smart compatibility is highlighted where relevant for batteries, chargers, ESCs or telemetry-aware systems.
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXAM4670
- Product Family: Spektrum electric motor range
- Application: Sport airplanes up to 7.9lbs (3583g) and 3D airplanes up to 3.9lbs (1769g)
- Compatibility Focus: Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Spektrum Category: Airplanes / Parts, Electronics & Accessories / Motors
- Voltage: 11.1-18.5v (3-5S LiPo)
- Motor Type: Brushless
- Connector Type: 3.5mm Bullet
- Maximum Burst Current: 740W
- Maximum Continuous Current: 592W
- Motor Size: 4240
- Number of Poles: 14
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
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How to choose the right ESC for an RC aircraft
ESC selection by maximum current, voltage, BEC, safety margin, cooling, connector choice and the real load from motor and propeller.
How to measure current draw with a Watt Meter
A step-by-step safety guide for measuring amps, watts and voltage sag so customers avoid overheating motors, ESCs and LiPo batteries.
How to prevent motor and propeller vibration
A safety and performance guide to propeller balance, spinner fit, bent shafts, motor mounts, firewall checks and protecting electronics from vibration.
| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXAM4670 |
| Spektrum Category | Airplanes / Parts, Electronics & Accessories / Motors |
| Connector Type | 3.5mm Bullet |
| Product Family | Spektrum electric motor range |
| Application | Sport airplanes up to 7.9lbs (3583g) and 3D airplanes up to 3.9lbs (1769g) |
| Compatibility Focus | Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering. |
| Maximum Continuous Current | 592W |
| Product Length | 1.59" (40 mm) |
| Product Weight | 4.4oz (125g) |
| Motor Type | Brushless |
| Voltage | 11.1-18.5v (3-5S LiPo) |
| Motor Size | 4240 |
| Number of Poles | 14 |
| RPM/Volt (Kv) | 800Kv |
| Outer Diameter | 1.67" (42 mm) |
| Shaft Diameter | 0.19" (5 mm) |
| Maximum Burst Current | 740W |
| Recommended Prop Range | 10x5 to 13x8 Electric Prop |
| Recommended Speed Control | Spektrum Smart Avian 45 amp ESC |
Tags: Spektrum, SPMXAM4670, Spektrum electric motor range, Spektrum Catalog, Spektrum Motors, Spektrum Aircraft Electronics, RC-MODEL