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 2217 series motors have a 1/8 inch (3.17mm) shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. 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.
Included with every Cobra 2217 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 3 screws
● Retaining Collar with Set Screw
● Three female 3.5mm bullet connectors
● Three pieces of heat-shrink tubing
Click here for the Cobra C-2217/7 Propeller Data Chart
Stator Diameter | 22.0 mm (0.866 in) |
Stator Thickness | 17.0 mm (0.669 in) |
Number of Stator Slots | 12 |
Number of Magnet Poles | 14 |
Motor Wind | 7 Turn Delta |
Motor Kv Value | 2500 RPM per Volt |
No Load Current (Io) | 2.73 Amps @ 10 Volts |
Motor Resistance (Rm) per Phase | 0.030 Ohms |
Motor Resistance (Rm) Phase to Phase | 0.020 Ohms |
Maximum Continuous Current | 50 Amps |
Max Continuous Power (2-cell Li-Po) | 370 Watts |
Max Continuous Power (3-cell Li-Po) | 555 Watts |
Max Continuous Power (4-cell Li-Po) | 740 Watts |
Motor Weight | 74.0 grams (2.61 oz.) |
Outside Diameter | 27.7 mm (1.091 in.) |
Shaft Diameter | 3.17 mm (0.125 in.) |
Motor Body Length | 33.0 mm (1.299 in.) |
Overall Shaft Length | 47.0 mm (1.850 in.) |
Motor Timing | 5-10 degrees |
PWM Frequency | 8 KHz |
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