Dean, great installation, I have been toying along similar lines mentally,,
I do wonder however,, with the backwards, or is it forwards installation like you have,, YOu are forced to use one of them there collet prop adapters,, that puts the prop on a 5mm shaft ( or 4mm on some motors) To me this seems a lot of load to carry on that small of a shaft,,second thought, I dont know,, but if you wanted to use a spinner,, how does that play out for aligment, dont the collets have the ability to move for and aft while you are tightening the prop nut down? to my way of thinking, using the prop adaptor on the other end just like a standard crankshaft, and then putting a bearing on the shaft end at the back would work more to our advantage...
Please bear with me, I am thinking out loud here,, of course then you rotate the bell instead of the stator but from my observations the stator is heavier and would equal or have greater affect on GP,, but with the short axis of rotation I doubt either one makes a significant difference,,
so help me understand your logic in the installation, what am I missing,, because I know you have WAY more background in this than I do
tjhanks