Big Motors > AirDrive (Drones/Fixed-wing)
The C3542 920KV brushless motor delivers robust, high-efficiency performance for large-scale fixed-wing aircraft and unmanned reconnaissance platforms. Engineered with military-grade components and precision-balanced rotors, it provides exceptional reliability and thermal stability for extended flight operations. The motor's optimized electromagnetic design ensures smooth power delivery and low vibration, making it ideal for surveillance missions and long-endurance flights requiring consistent performance in demanding conditions.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC |
| Protection Rating | IP56 (Dust/Water Protected) |
| Rated Voltage | 6-8S LiPo (11.1V) |
| Continuous Power | 533W @ 11.1V |
| Max Torque | 2.8Nm (Peak) / 1.9Nm (Continuous) |
| Speed Range | 3,500–42,000 RPM (ESC Adjustable) |
| KV Rating | 920-1250 RPM/V |
| Phase Resistance | 0.018Ω (Phase-to-Phase) |
| Shaft Diameter | 8.0mm (Hardened Steel, M8 Threaded) |
| Weight | 140g |
| Mounting | 40×40mm / M5 Threads (4-point) |
| Dimensions | Ø42mm × 54mm (Stator Diameter × Height) |
• Military-Grade Construction: Anodized aluminum housing withstands harsh environments
• Precision Balancing: <0.015g·mm dynamic imbalance for vibration-free operation
• High-Efficiency Windings: Silver-plated copper with thermal-resistant insulation
• Dual-Bearing System: Ceramic hybrid bearings rated for 50,000+ hours
• Extended Endurance: >90% efficiency across 40-80% throttle range
| Application | Voltage | Propeller | Thrust | Endurance |
| Recon UAV (3m) | 29.6V (8S) | 16×10" folding | 5.2kg | 120 min |
| Cargo Plane (4m) | 25.9V (7S) | 18×8" three-blade | 6.8kg | 90 min |
| Surveillance Fixed-Wing | 22.2V (6S) | 14×7" carbon | 4.5kg | 150 min |
| EDF Jet (120mm) | 29.6V (8S) | 12-blade fan | 8.5kg | N/A |
• 3-5m wingspan reconnaissance UAVs
• Heavy cargo transport models (>5kg payload)
• Scale warbird and commercial aircraft
• Border patrol unmanned systems
• Long-endurance surveillance platforms
• Paydropped delivery drones
• Large-scale EDF jet propulsion
• Wind tunnel testing models
• Competition scale aircraft
• Continuous Operation: ≤75°C @ 40°C ambient
• Thermal Management: Maintains <85°C at 100% load with 5m/s airflow
• Cooling Requirements: Minimum 4m/s airflow; integrated cooling fins
• Storage Conditions: -40°C to +85°C, <90% RH

