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Big Motors > AirDrive (Drones/Fixed-wing)
The F2835-4000KV brushless motor delivers high-RPM performance with integrated cooling fan and reduction gear system for fixed-wing aircraft and geared propulsion applications. Engineered with precision-machined components and optimized airflow design, it provides exceptional power density while maintaining thermal stability. The motor's unique combination of integrated fan blade and gear assembly enables efficient cooling and torque conversion for high-speed flight applications requiring compact power solutions.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC |
| Protection Rating | IP43 (Dust & Splash Protected) |
| Rated Voltage | 2S-4S LiPo (11.1V) |
| Continuous Power | 380W @ 11.1V |
| Max Torque | 0.4Nm (Peak) / 0.25Nm (Continuous) |
| Speed Range | 8,000–65,000 RPM (ESC Adjustable) |
| KV Rating | 3600-4000 RPM/V |
| Gear Ratio | 3.8:1 (Integrated Planetary Gear) |
| Phase Resistance | 0.022Ω (Phase-to-Phase) |
| Shaft Diameter | 3.17mm (Hardened Steel) |
| Weight | 65g (including fan & gear) |
| Mounting | 25×25mm / M3 Threads (4-point) |
| Dimensions | Ø28mm × 35mm (with fan housing) |
• Integrated Cooling System: CNC aluminum fan blade provides 15CFM airflow at 40k RPM
• Planetary Gear Reduction: 3.8:1 ratio enables high-torque output from compact motor
• High-RPM Capability: Precision-balanced rotor for stable operation up to 65k RPM
• Dual-Purpose Shaft: Front output for propeller, rear output for accessory drives
• Thermal Management: Forced-air cooling maintains <75°C at full load
| Application | Voltage | Propeller/Gear | Output RPM | Thrust |
| Fixed-Wing Racer | 14.8V (4S) | 6×4" (direct) | 42,000 RPM | 1250g |
| Geared Drive | 11.1V (3S) | 8×6" (geared) | 10,500 RPM | 1450g |
| Ducted Fan Unit | 14.8V (4S) | 55mm EDF | 38,000 RPM | 980g |
| Speed Boat | 14.8V (4S) | 30mm impeller | 12,000 RPM | 0.35Nm |
• High-speed pylon racers (>200km/h)
• EDF jet conversions with compact installations
• 3D aerobatic models requiring rapid throttle response
• Scale aircraft with concealed propulsion systems
• Gear-reduced drone lift systems
• Mechanical drive RC vehicles
• Cooling systems for electronics compartments
• Wind tunnel test models
• Air-assisted RC car brakes
• Continuous Operation: ≤75°C @ 25°C ambient (fan-assisted)
• Cooling Performance: Maintains <65°C at 90% load with integrated fan
• Thermal Protection: Auto-reduction at 95°C winding temperature
• Storage Conditions: -20°C to +70°C, <80% RH
