Kansas DOT, FAA to Set Up Supersonic Test Corridor Written 18 December 2020

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Illustration of the X-59 QueSST as it flies above NASA's Armstrong Flight Research Center in California. | Lockheed Martin; NASA

Aviation International News reports that the Kansas DOT and the FAA signed an agreement to establish the Kansas Supersonic Transportation Corridor (SSTC), which will allow for testing of aircraft at Mach 3 speeds. The agreement “comes as the FAA has taken a multi-faceted approach to facilitate the emergence of supersonic transport while still meeting environmental and safety goals.” 
Full Story (Aviation International News)