Cobra Brushless Motors offer performance and value for Sport Flyers and Competition pilots alike. They are built from high quality components, and are designed to give years of top-level performance. All Cobra Motors are shipped in a custom designed package that features protective foam on all six sides of the box, with 3 separate compartments to protect the motor, accessory pack and cross mount.
The Cobra CP-2814 series motors are designed to power the the new class of FPV Racing Wing aircraft. They have a 5mm shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. The internal bearing measures 11mm x 5mm x 5mm and the outer bearing measures a massive 16mm x 5mm x 5mm! The stators are made with 0.20mm laminations for maximum efficiency and minimum Eddy Current losses. Also included on the motor are ultra-flexible motor leads with high-temp silicone rubber insulation and 3.5mm bullet connectors already installed.
This motor has larger lead wires than the rest of the Cobra 2814 motors, and uses 4mm bullet connectors, to be able to handle the higher currents that the motor is capable of. Due to the high speed operation of this motor, it cannot be used with the regular Cobra DL-Series airplane speed controllers. Instead, we recommend that it be used with the Cobra Wing Series speed controllers, which use the BL-Heli firmware, and can keep up with the high speeds that these motors offer.
Included with every Cobra CP-2814 Series Motor is a complete accessory package which contains the following items:
- Heavy Duty 3mm Thick Cross Style Motor Mount
- Four M3x6mm Motor Mount Screws
- Bolt-On style threaded prop adapter with 4 screws
- Retaining Collar with Set Screw
- Three female 4mm bullet connectors
- Three pieces of heat-shrink tubing
Cobra 2814/8 Motor Specifications
Stator Diameter: 28.0 mm (1.102 in)
Stator Thickness: 14.0 mm (0.551 in)
Number of Stator Slots: 12
Number of Magnet Poles: 14
Motor Wind: 7 Turn Delta
Motor Kv Value: 2000 RPM per Volt
No Load Current (Io): 3.29 Amps @ 10 Volts
Motor Resistance (Rm) per Phase: 0.018 Ohms
Motor Resistance (Rm) Phase to Phase: 0.012 Ohms
Maximum Continuous Current: 80 Amps
Max Continuous Power (3-cell Li-Po): 890 Watts
Max Continuous Power (4-cell Li-Po): 1180 Watts
Motor Weight: 120 grams (4.23 oz.)
Outside Diameter: 35.1 mm (1.38 in.)
Shaft Diameter: 5.00 mm (0.197 in.)
Motor Body Length: 36.0 mm (1.42 in.)
Overall Shaft Length: 41.5 mm (1.63 in.)
Motor Timing: 5-10 degrees
PWM Frequency: 8 KHz
