National Defense Magazine reports that “the U.S. Air Force has no immediate plans to conduct hypersonic vehicle flight tests, the service’s chief scientist said May 17.”  

“Greg Zacharias said he ‘was not aware’ of any set dates for a U.S. hypersonic flight test.”  

“Russia and China both conducted hypersonic missile flight tests in April, according to the Washington Free Beacon. There were at least five Chinese flights between 2014 and 2015, according to a 2016 Mitchell Institute report, Hypersonic Weapons and U.S. National Security.”