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Originally Posted by GH85Carrera
OK so Mach one is about 767 MPH depending on moisture and other things, But we can use that as an average.
Mach 14 is 10,738 and Mach 19 is 14,753 MPH. The returning spacecraft hit the atmosphere at 17,000 mph or so and have to have large effective heat shields to survive. The SR71 was the fastest airplane ever built. It could go 2,193 and got red hot just from air friction. So those flying cars must have force fields and one very astonishing power source. I want one!
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Well, the navy has a patent on plasma shielding and room temperature semiconductors that would allow them to do some "different" things with respect to flying. Would create puddles from the occupants, but that is a minor issue to overcome.