The roll-out of the Overture is slated to commence in 2025 with the first passengerslikely to fly by 2029. Concorde, the last supersonic passenger jet, entered service in 1976 and continued flying for 27 years. Boom Supersonics’ 88-seat Overture aims to be the first to have zero carbon emissions. The aircraft slashes many flight times in half - with a journey from London to Newark in New Jersey taking three and a half hours. Currently, in a standard aeroplane, the same route takes around seven.