OK, have been seeing renderings of these things all my life....
Build one already!!
Building one isn’t the problem.
Selling ten is.
Exactly. My daughter could produce a nice drawing of such a thing, but it would be no nearer reality than her drawings of space-travelling dragons.
Concorde is a British-French turbojet-powered supersonic passenger airliner that was operated from 1976 until 2003. It had a maximum speed over twice the speed of sound at Mach 2.04 (1,354 mph or 2,180 km/h at cruise altitude), with seating for 92 to 128 passengers.
On that train all graphite and glitter
Undersea by rail
Ninety minutes from New York to Paris
Well by seventy-six we’ll be A.O.K.