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The Brushless RC Motor, is it the wave of the future?The brushless rc motor is changing how everyone is looking at the electric motor.
In a brushless RC motor the windings are mounted stationary in the "can". While the permanent magnets are mounted on the rotor.
Since it is the magnets that are now moving, instead of the windings, the commutation needs to be done electronically rather than mechanically. This requires an integrated sensor circuit in the motor. Along with an electronic speed controller (ESC) to control the commutation. These sensor based brushless RC motors that use a RC "ESC" can provide the smoothest and quickest delivery of torque and rpms.
There are many advantages to brushless RC motors: 1.Less radio noise generated to interfere with the remote control. 2. No loss of commutation due to brushes flying over the commutator. 3. No loss of effectiveness due to resistance of the brushes. 4. Lowering resistance because more wire and thicker wire can be fit in the "can".
With the commutation being done electronically, overall reliability is much higher.
A few of the disadvantages of brushless RC motors: 1. Initial setup cost is much higher. 2. Programming remote control, motor and rc ESC can be difficult. One big performance factor with brushless rc electric motor is your battery packs. Using high quality battery packs is very important. A brushless rc electric motor and ESC put a huge demand on your power supply. So, learning how to maintain your batteries is essential.
Learn more on maintaining your batteries and battery packs here!
Your ESC and brushless rc electric motor are going to produce large amounts of heat. Heat is the number one enemy of both these components. So, do understand the need for heat sinks and cooling fans when you are setting up your brushless rc electric motor and ESC.
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One other thing to keep in mind is the heat produced. 
