Hypersonic 4,000mph passenger jet ‘Halcyon’ to fly from London to NYC in just 90 mins & could run on 125 routes by 2029

A FUTURISTIC jet capable of travelling at hypersonic speeds is in the making – and it could fly from London to New York City in just 90 minutes.

Test flights and operations are said to start by the end of this decade for “Halcyon” which can go five times over the speed of sound.

hermeusThe Halcyon could soon become the world’s fastest-passenger jet travelling at hypersonic speeds[/caption] hermeusThe hypersonic engine has been developed using two traditional technologies...