Drowning Trout <drowningtro...@gmail.com> wrote: > > -Assuming a straight global backbone ET3 track, the speeds could reach up > to 2000mph . . .
I think that is a really, really bad idea. If something goes wrong with the control system for few milliseconds, the train would collide with the wall and both the train and the tunnel would be vaporized. It might take weeks or months to repair. If the tunnel was underwater (as some proposed systems would be) the entire tunnel would fill with water. You cannot have emergency airlocks or compartments with trains going through that fast. A disaster with an airplane kills only the passengers and crew. It does not disable the whole transportation system. > , offering faster travel than aircraft or any other method. > That is Mach 4. There have been military airplanes faster than that. There is no reason why commercial aircraft cannot be made that fast, especially when cold fusion makes the cost of fuel negligible. -Extremely energy/resource efficient > This would make no difference with cold fusion. It would save a few dollars in fuel every year. > -High density computer automated traffic > VTOL aircraft traffic can be high density and eventually it will be fully automated. - Jed
