What would be the best way to go about testing the thrust and efficiency of several different blade systems? So far all I've thought up of is testing them in front of a fan Wind Power style but i'm certain there's a better way. How would the motor setup described above work? Would it be a motor with a torque equivalent to a rubber motor lifting something or would RPM of the propellers be measured? Sorry just a little bit confused about the best way to go about testing this.
I didn't find the right solution from the internet.