Ultrafly C/13/33H Brushless Motor

Ultrafly C/13 Series brushless, sensorless motors are not only the industry's first to feature an internal cooling fan that doesn't require an external power source they're also the lightest 200W motor ever made! Designed for helicopters and planes that demand superior power-to-weight ratio, the self-cooled C/13 transfers 200 watts of power, yet weighs only 1.6 oz (45g). Even in installations where there's little air movement, such as scale planes with enclosed cowls, the unique fan design still keeps the motor core to just 90deg at a constant 180 watts of power. High-quality construction and CNC-machined fan blades that are integrated into the head of the motor enable C/13 motors to operate in a high rpm range without significant vibration. They can even handle up to a 6-cell LiPo pack with ease! C/13 motors are the perfect choice any time you need a lot of power from a small package. Fits into any airplane, heli or boat designed for a Speed 400 or 480 motor, a great performance hop-up for the new smaller, electric helis! Transfers 200W of power, and produces a whopping 50,000 maximum rpm,yet weighs only 1.6 ounces! Comes with a breakaway propeller mount. The top-mounted fan pulls air in to cool the motor and reduce running temperature. The internal fan draws air in and directs it over the armature, then out the rear of the motor!