I want to operate a ducted fan with about 15-20 oz of static thrust. Motor A will produce the required thrust at full power, drawing ~20 amps at 11 volts and it turns at about 4,400 rpm/volt (no load). Motor B is more powerful, produces about 5,300 rpm/volt and will produce more thrust, if desired. It obviously has heavier gage wiring and less turns of wire around each stator pole, and can draw more current.
My question is for a given level of thrust, is it more efficient (less wattage input) to operate Motor A (the smaller motor) at 100%, or Motor B (the larger motor) at around 75-80%? Both motors are made by the same manufacturer, have the same physical dimensions and parts (except for the stator windings) and should have approximately the same efficiency (I assume).
Brushless Electric Motors for RC
Re: Brushless Electric Motors for RC
