Given the current emissions of air travel I find fairly repulsive to spend that much money designing a new airplane going completely in the wrong direction in terms of fuel efficiency. There is no way ( regardless of altitude, unless you’re going in LEO ) to avoid the huge drag losses of going supersonic, so most of that ticket price is going to go towards fuel.
If this ever flies and there is a kerosene carbon tax, that plane is dead.
If this ever flies and there is a kerosene carbon tax, that plane is dead.