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Old 02-02-2003, 10:11 AM
Steve Lewin
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Default Volt,Amp,Watt,RPM,Windings......

Simplified view of windings (or turns).

If everything else is the same, i.e. motor size, # of poles, brushed/brushless, strength of magnets etc and the voltage you're using :

More turns = lower current, lower revs, better torque
Less turns = higher current, higher revs, low torque

So typically for the cheap Speedxxx/RC car-type motors:
higher turn motors will turn bigger prop without taking too much current and without a gearbox

Lower turn motors can only turn a small prop direct drive so are usually used with a gearbox.