So it's 4x less fuel-efficient. Fuel is a small percentage of the ticket price: http://www.darinlee.net/fuel/fuel_widget.html http://www.darinlee.net/fuel/fuel

So it's 4x less fuel-efficient. Fuel is a small percentage of the ticket price: http://www.darinlee.net/fuel/fuel_widget.html http://www.darinlee.net/fuel/fuel_widget.html But even if fuel represented 100% of the ticket price, these supersonic flights could catch all of first- and business-class market. Rich people and businessmen value their time.