On Mon, 20 Dec 2004 09:10:05 GMT, John Kimmel
wrotD:

Those "air bearings" probably work well on a stationary generator, but
I'll bet they bottom out with any bumps or gyro forces.

Don't know if this engine would work or not, but air bearings are very
common in the turbines of air cycle machines used on many aircraft and
are much more reliable than the old traditional have-to-lube-it
bearings they used to use. An ACM generates loads of water that was
always getting into the oil. These turbines typically rotate at a much
higher speed than any engine.