how big a loop do you think would be feasable to build, by a person such as yourself? I assume you've looked at the equations (I have not), so how does a small

how big a loop do you think would be feasable to build, by a person such as yourself? I assume you've looked at the equations (I have not), so how does a smaller loop affect the necessary speed of the rotor? does it increase or decrease? (edit) ...and how close are you to retirement?