One of Concordes problems was also that it was not that much faster for how uncomfortable it was. For London -> NY, You were looking at 7 hours in a luxurious b

One of Concordes problems was also that it was not that much faster for how uncomfortable it was. For London -> NY, You were looking at 7 hours in a luxurious business class vs 3.5 hours in a crammed noisy shaking metal tube for twice the price.