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Big Motors > AirDrive (Drones/Fixed-wing)
The D3542 920KV brushless motor delivers high-efficiency thrust for EDF systems and multi-rotor drones with self-locking propeller compatibility. Engineered with precision-balanced components and optimized magnetic circuits, it provides exceptional power density and thermal stability. The motor's integrated self-locking mechanism ensures secure propeller retention during aggressive maneuvers, making it ideal for cinematic drones, FPV platforms, and high-speed EDF jet applications requiring reliable performance.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC |
| Protection Rating | IP54 (Dust & Splash Protected) |
| Rated Voltage | 4-6S LiPo (11.1V) |
| Continuous Power | 444W @ 11.1V |
| Max Torque | 1.5Nm (Peak) / 0.9Nm (Continuous) |
| Speed Range | 5,000–45,000 RPM (ESC Adjustable) |
| KV Rating | 920-1250 RPM/V |
| Phase Resistance | 0.028Ω (Phase-to-Phase) |
| Shaft Design | 5.0mm w/ Self-Locking Thread (M5 Reverse) |
| Weight | 135g |
| Mounting | 25×25mm / M4 Threads (4-point) |
| Dimensions | Ø35mm × 42mm (Stator Diameter × Height) |
• Self-Locking Prop System: Reverse-threaded shaft prevents propeller detachment during flight
• EDF Optimization: Compatible with 70-90mm electric ducted fan units
• Precision Balancing: Titanium-reinforced rotor with <0.02g·mm imbalance
• Multi-Rotor Ready: Supports quad, hexa, and octo-copter configurations
• Thermal Management: Aluminum housing with axial cooling channels
| Application | Voltage | Propeller/EDF | Thrust | Efficiency |
| 6S Quadcopter | 22.2V (6S) | 12×4.5" self-lock | 2150g | 88% |
| 90mm EDF Jet | 22.2V (6S) | 12-blade fan | 2.8kg | 82% |
| Hexacopter Lift | 14.8V (4S) | 10×5" self-lock | 1450g | 85% |
| Octocopter Heavy | 18.5V (5S) | 11×4.7" self-lock | 1750g | 87% |
• Professional cinematography quadcopters (DJI Inspire-style)
• Heavy-lift hexa/octocopter platforms
• Industrial inspection drones with self-locking props
• 70-90mm EDF jet propulsion units
• Scale turbine conversions
• Wind tunnel test models
• FPV long-range platforms
• Aerial mapping survey drones
• Drone-based delivery systems
• Continuous Operation: ≤70°C @ 25°C ambient
• Thermal Management: Maintains <80°C at 90% load with airflow
• Cooling Requirements: 5m/s airflow (prop wash sufficient)
• Storage Conditions: -20°C to +70°C, <80% RH
