Fred,
If you happen to find a permanent magnet that you can spin at ~
22,500 revolutions
per second (1,350,000 RPM Accelerated B Field dv/dt = v^2/r) to
create
that Electrogravity/Hypocharge field let me know.
Hmm... Carbon fiber coated with nickel-iron and magnetized in
short repeating sections so that the poles change in resonance
with the (toroidal winding spacing) might possibly permit a very
large toroid (what was the diameter of that Roswell disk anyway)
to be spun much slower, and still achieve the same "rate" of
pole-changes (22,500/sec) but at much lower actual RPM.