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BrianG · 04.30.2006, 08:40 PM

Yeah, the trouble with low rpm is the cogging issue. I would think the rpms would have to be high enough to be above the cogging range, yet low enough to have tight control over the throttle.

Aside from how an outrunner is physically made (I've seen a couple at my LHS), how do they compare to "normal" BL motors? I know you said they spin slower and have more torque, but how do they heat up under different loads? Regular BL motors seem to like higher voltages and about 40k-ish rpms. To me, they are made like the all the computer fans where the coils are inside and the hub on the outside spins - except the controller in those is built on the motor PCB.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	04.30.2006, 08:40 PM Yeah, the trouble with low rpm is the cogging issue. I would think the rpms would have to be high enough to be above the cogging range, yet low enough to have tight control over the throttle. Aside from how an outrunner is physically made (I've seen a couple at my LHS), how do they compare to "normal" BL motors? I know you said they spin slower and have more torque, but how do they heat up under different loads? Regular BL motors seem to like higher voltages and about 40k-ish rpms. To me, they are made like the all the computer fans where the coils are inside and the hub on the outside spins - except the controller in those is built on the motor PCB.