motor for hyper sc10 - RC-Monster Forums

BrianG · 12.31.2009, 08:38 PM

That's not even 20k rpm on 3s. If you gear high enough to have decent speed, you might get cogging on startup as the ESC tries to find rotor position. A sensored system would tolerate this better. I would get a motor with a kv of ~3000 (for 3s) or 4500 (for 2s). Low kv isn't always best - it's about matching the kv with the voltage.

hlb14 · 12.31.2009, 09:08 PM

Quote:

Originally Posted by BrianG

That's not even 20k rpm on 3s. If you gear high enough to have decent speed, you might get cogging on startup as the ESC tries to find rotor position. A sensored system would tolerate this better. I would get a motor with a kv of ~3000 (for 3s) or 4500 (for 2s). Low kv isn't always best - it's about matching the kv with the voltage.

ok, thanks, sometimes i get these wild thoughts in my head and need you guys to set me back on the right track, i have decided to stick with lipo instead of jumping to life... thanks again brian