I see just a little bit of hand-waving with how to deal with the 300 psi and 1000 degree F air.
He says they will cool it with on-board water and storing the steam (I don't see a pressure here)in the vehicle. Given the tight space, will any kind of thermal insulation breakthrough be needed?
Probably not, the pressure and thus the density of the air is really low and therefore it simply does not have the energy density needed to cause problems.
The almost vacuum at the front of the pod is compressed and piped out the back and to the air bearings. After it is compressed it is 1000 deg. F and 300 psi. That sounds pretty energetic to me
He says they will cool it with on-board water and storing the steam (I don't see a pressure here)in the vehicle. Given the tight space, will any kind of thermal insulation breakthrough be needed?