appan wrote: FF is not sitable, adaptable for 15 m dia Tunneling
Appan,
I do not understand the word sitable, as it is not a standard English word. Do you mean suitable? If so, why do you say so?
Why would a diameter of 15 meters be required for an evacuated tube? 5 meters may be sufficient.
With a cross-continental transit time of 30 minutes, a single tube could provide service from either end every hour-and-a-half or two hours. A second tunnel need not be built at the same time as the first, nor immediately next to it.
Reasonable Dim may be 3-5 km
What do you mean by “Dim”? 3 to 5 kilometers for what?
Tunneling is done by GIANT Cutter and Micro second time-delayed [detonator.]
What do you mean by “micro-second time-delayed detonator”?
