Lockheed Martin X-59 Quiet Supersonic Transport is an American experimental supersonic aircraft
designed to evaluate quiet supersonic technologies.
https://s3-us-west-1.amazonaws.com/h...onicxplane.jpg
More:
https://www.nasa.gov/aero/nasa-exper...ft-x-59-quesst
https://www.nasa.gov/aero/x-59-quesst-overview
Previously:
https://www.homemadetools.net/forum/...2981#post97744
https://www.homemadetools.net/forum/...979#post144904
https://www.homemadetools.net/forum/...118#post130213
https://www.homemadetools.net/forum/...693#post128791