NASA is working with Lockheed on the X-59 QueSST to tackle the noise concerns. Construction is ongoing but over half complete according to wp . first flight pla

NASA is working with Lockheed on the X-59 QueSST to tackle the noise concerns. Construction is ongoing but over half complete according to wp . first flight planned for 2022. 2025 or so is when the icao expects to establish a new sonic boom standard. If things go well it could be much less of a blunt instrument than 'no overland flights ever' like what was required for the birds in the days of Concorde and Boeing's SST competitor, the 2707 or Lockheed L-2000