The U.S. military does supersonic flights over land, too. For example, see page 39 of the R-2508 Complex Users Handbook[1], the section titled "Supersonic Oper

The U.S. military does supersonic flights over land, too. For example, see page 39 of the R-2508 Complex Users Handbook[1], the section titled "Supersonic Operations". The R-2508 complex[2] is an airspace around the area of Edwards Air Force Base in California.) 1. https://www.edwards.af.mil/Portals/50/R-2508%20User%27s%20Handbook%2024%20April%202020.pdf https://www.edwards.af.mil/Portals/50/R-2508%20User%27s%20Ha... 2. https://www.edwards.af.mil/About/R-2508/ https://www.edwards.af.mil/About/R-2508/