
The astonishing £15.6trn mega-project that would link the UK with US in just 54 minutes
It once took Concorde around 3.5 hours to whisk passengers from London to New York at the height of its fame. The supersonic aircraft was able to travel at a cruising speed of Mach 2.02 - roughly 1,345 miles per hours - as it sped across the Atlantic. …