LOL, I was undecided whether I'd want to travel in this thing. Now I do. Gimme some concrete scream tube. I might even be willing to visit cali to do it.concrete scream tube?
Yes, you probably are, but fine. Does Aluminium Scream Tube work for you?Not sure where people are getting that the tube is concrete. It's supposed to be steel so that you could build the tube in sections off-site and weld it together for the partial-vacuum. Am I the only one who read the white paper?