By all means send me drawings, Max. It would be useful to keep discussion in this thread though. I prefer CAD to models, but it is my approach to getting stuff done.
What is the cause of torque delay in a turbine? I presume it is mostly to do with stators reacting to pilot input. Does falling behind the power curve present real problems to novice pilots? Is this the reason behind your concept, or are you most concerned about safe autorotation entry?
Mart