Consider largest and slowest PropRotor for the front units.
Consider smaller and faster PropRotors for rear units.
All 4 motors may be the same or the2 front ones may be AXI 2212/34 and the 2 rear ones may be AXI 2212/26
Make special pitch grips that go between the EVPU's grips and the root of the blades.
The forward pitch grips will be longer than the aft ones to give a larger diameter disk. In addition, they will provide a range of blade pitch that is all positive. I.e. from 0º to 14º
The rear pitch grips will be shorter than the front ones to give a smaller diameter disk. In addition, they will provide a range of blade pitch that is all positive. I.e. from 0º to 14º.
It would be nice for them to have a greater pitch but this will probably mean that the lower value will be above 0º and not be able to autorotate. Higher speed rear motors should help.
