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BrianG · 06.09.2008, 11:52 AM

The only place a sensor would be of any help would be extremely slow and/or heavily loaded starts. Once the rotor gets enough rpm to generate suitable back-EMF pulses, the sensors are not needed.

And, as DT said, any increase in surface area is helpful. It's about exposing as much of the motor to air as possible.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	06.09.2008, 11:52 AM The only place a sensor would be of any help would be extremely slow and/or heavily loaded starts. Once the rotor gets enough rpm to generate suitable back-EMF pulses, the sensors are not needed. And, as DT said, any increase in surface area is helpful. It's about exposing as much of the motor to air as possible.