Efficiency of Lehner motors

[Serum]

Nice theory, but since they also included the Delta and the Wye windings, it would make the calculations far more complicated than you are describing. PLUS they DO use timing in their numbers. This STILL doesn't explain why they don't use a set number of voltage. (this is variable as well) I know one reason why this number would be variable, but it simple makes no sense to 'assume' a resistance of a battery, since this is variable as well..

And now we are getting deeper into it; why are brushless motorcans not made from plastic? aluminum is magnetic active when there is a magnetic rotor is turning in it. (even a U, or an unclosed piece of aluminum has this 'problem') I think plastic motorcans would help making a brushless motor even more efficient.

but here is the big q;

What makes you think/presume they use calculated data instead of measured? agai'n; Daf mentioned they use a propellor to measure the power; the other numbers that you call measured is static data.