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The real future of supersonic flight doesn't depend on Richard Branson

The ConversationSir Richard Branson wants to bring back supersonic travel. Thirteen years since Concorde ended operations, the Virgin tycoon has revealed the prototype design for a new generation of supersonic business jets developed by the Branson-backed startup company Boom, based in Denver. The firm claims its planes will allow “affordable” journeys from London to New York in just three-and-a-half hours for approximately $5,000 (£4,000) return, the same as current business class tickets.