That's the goal of the current quesst program. https://www.nasa.gov/press-release/nasa-begins-work-to-build-a-quieter-supersonic-passenger-jet https://www.nasa

That's the goal of the current quesst program. https://www.nasa.gov/press-release/nasa-begins-work-to-build-a-quieter-supersonic-passenger-jet https://www.nasa.gov/press-release/nasa-begins-work-to-build...