rc motor drag?

[def215]

a question for anyone who knows rc well. i was wondering does rc motors have a significant amount of drag when it is powered on? this is the first time ive really messed with brushless rc motors so im not sure if there is something wrong or not. im running a exceed monster power 46 with a mystery 80amp ESC on 24v sla.

 

[dontsendbubbamail]

Are you spinning the motor by hand before and after powering it up and noticing a difference?

Bubba

 

[def215]

when the motor is off, the motor will spin freely without a problem. when i power it on, i can barely spin it with my bare hands. not sure if im paranoid about this occurence or if its just normal. im guessing this is why adrian_sm, and kepler's rc drive disengage when they are not running? (did i just answer my own question? )

 

[recumpence]

Your controller probably has a brake that is currently turned on.

Matt

 

[LI-ghtcycle]

Yeah, I have not had any trouble even when running a Kepler friction drive with the motor always engaged. I wouldn't think this "drag" would be even noticeable, but someone smarter than me might comment on whether or not this is good for most ESC's since they don't like the back-feeding of current (regen) that this might cause.

 

[liveforphysics]

Many RC controllers default to braking the motor when not driving it. See if you can change the settings in your ESC to disable it.