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Uh, great circle route Chicago to LA is 1744 miles which would be 5 hours with no stops. 5 hours locked in a windowless tube. If there is a stop in Denver, then you would have slowdown time, loading and unloading luggage, etc. I expect you'd be closer to 6 hours.
Also, air bearing are another word for LIFT. Lift induces drag! It will require enough lift to hold the "tube" up. So the train needs to be a very efficient lifting body. And that lift induced drag will require propulsion to keep the train going 350 mph.
The lift will be very similar to an aircraft of similar size, without the ability to do it with wings!
The more I look at this, they're building an aircraft that is running inside of a tube!
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
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