> > There is a mechanical reason for switching too, and that is that a lot
> > more wind is need to start the blades in delta configuration, because
> > of the magnetic cogging.
> 
> But that's only because of the unintelligent control system

Your and Russell's comments have raised some possibilities for getting
better performance

This sort of electro-mechanics is a new field for me but I'm wide-eyed
and keen to learn

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