https://www.sciencedaily.com/releases/2010/05/100527130438.htm
X-51 Waverider makes historic ramjet-powered hypersonic flight | ScienceDaily
An X-51A Waverider flight-test vehicle successfully made the longest supersonic combustion ramjet-powered hypersonic flight May 26 off the southern California...
x 51 waveriderhypersonic flightmakeshistoricramjet