JP Hobby 105mm 12-Blade CNC Metal EDF System with Motor
JP Hobbys high-performance 105mm EDF fan system is precision CNC-machined from aluminum alloy. Designed for serious RC jet enthusiasts, this unit comes pre-assembled with a powerful MT-4250 outrunner brushless motor and is dynamically balanced for optimal performance.
General Specifications
Fan Diameter (Inner / Outer): 105mm / 107mm
Exhaust Outlet Diameter: 105mm
Blade Count: 12 high-efficiency blades
Stator Blades: 8 (fixed)
Material: Full CNC aluminum alloy
Motor Type: MT-4250 Outrunner Brushless Motor (12-pole)
Motor Size: 50mm x 80mm (total with fan)
Shaft Diameter: 6mm or 8mm (depending on version)
Weight: ~545g – 550g (including motor)
Rotation Direction: CCW (Counter-Clockwise)
Connector Type: 5.5mm PK Bullet
Motor Cone: Removable (recommended to remove for high-power setups to improve cooling)
| Battery | Motor KV | Amps (Peak) | Thrust (kg) | Power (W) | Recommended ESC | Weight |
|---|---|---|---|---|---|---|
| 6S (22.2V) | 1400KV | N/A | N/A | N/A | 150A LV | 545g |
| 8S (29.6V) | 1150KV | 119A | 5.0kg | 3522W | 150A HV | 550g |
| 8S (30.0V) | 1150KV | 125A | 5.4kg | 3763W | 150A HV | 550g |
| 8S (32.0V) | 1150KV | 134A | 5.8kg | 4288W | 160A HV | 550g |
| 10S (37.0V) | 1000KV | N/A | N/A | N/A | 150A HV | 550g |
| 12S (44.4V) | 875KV | N/A | N/A | N/A | 160A HV | 550g |
| 14S (51.8V) | 840KV | N/A | N/A | N/A | 160A HV | 542g |
Key Notes
- Each unit is factory balancedno need for additional balancing.
- For high-power setups, remove the aluminum spinner cone to allow better heat dissipation.
- 12-blade EDFs draw significantly more current than traditional 56 blade unitsuse a wattmeter to monitor your power system.
- Suggested battery: 5000mAh 40C or higher for sufficient current delivery.
- ESCs should support at least 20% more than the peak current for safety margin and cooling.
