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Big Motors > AirDrive (Drones/Fixed-wing)
The D4108 380KV brushless motor delivers high-torque efficiency for multirotor drones and unmanned aerial vehicles requiring heavy payload capacity and extended endurance. Engineered with precision-balanced components and optimized magnetic circuits, it provides exceptional power density and thermal stability. The motor's robust construction ensures reliable performance in demanding aerial applications including aerial photography, surveying, and industrial inspection requiring consistent thrust delivery and vibration-free operation.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC |
| Protection Rating | IP55 (Dust & Water Protected) |
| Rated Voltage | 6-8S LiPo (14.8V–22.2V) |
| Continuous Power | 262W @ 22.2V |
| Max Torque | 2.4Nm (Peak) / 1.6Nm (Continuous) |
| Speed Range | 2,000–40,000 RPM (ESC Adjustable) |
| KV Rating | 380-600 RPM/V |
| Phase Resistance | 0.042Ω (Phase-to-Phase) |
| Shaft Diameter | 5.0mm (Hardened Steel, M5 Threaded) |
| Weight | 92g |
| Mounting | 25×25mm / M4 Threads (4-point) |
| Dimensions | Ø41mm × 8mm (Stator Height) |
• Heavy-Lift Optimization: Compatible with 14"-18" propellers for payloads >4kg
• Precision Balancing: <0.015g·mm dynamic imbalance for vibration-free imaging
• High-Temp Windings: 200°C rated enamel with thermal protection coating
• Dual-Bearing System: Ceramic hybrid bearings rated for 50,000+ hours
• Thermal Management: Integrated aluminum heat sink with radial fins
| Configuration | Voltage | Propeller | Thrust | Flight Time |
| Heavy-Lift Hexa | 14.8V (8S) | 16×5.4" carbon | 3350g | 22 min (w/1.5kg payload) |
| Cinematic Octocopter | 22.2V (6S) | 15×5" folding | 2950g | 25 min (w/1kg payload) |
| Mapping Drone | 14.8V (7S) | 14×4.7" | 2550g | 32 min (w/600g payload) |
| Agricultural UAV | 22.2V (8S) | 17×5.8" | 3850g | 18 min (w/2L spray) |
• Professional cinematography drones (RED/ARRI camera payloads)
• Industrial inspection UAVs with LiDAR/thermal sensors
• Agricultural spraying platforms (3-5L capacity)
• Cargo delivery drones (>3kg payload)
• Search and rescue payload deployment
• Scientific research equipment carriers
• Power line inspection systems
• Cellular tower maintenance drones
• Maritime surveillance UAVs
• Continuous Operation: ≤70°C @ 35°C ambient
• Thermal Management: Maintains <85°C at 95% load with 4m/s airflow
• Cooling Requirements: Prop wash sufficient; forced cooling recommended for tropical operations
• Storage Conditions: -30°C to +80°C, <85% RH
