Boeing X-51A WaveRider Sets Record with Successful Fourth Flight
X-51A WaveRider unmanned hypersonic vehicle achieved the longest air-breathing, scramjet-powered hypersonic flight in history May 1, flying for three and a half minutes on scramjet power at a top speed of Mach 5.1. The vehicle flew for a total time of more than six minutes.
"This demonstration of a practical hypersonic scramjet engine is a historic achievement that has been years in the making," said Darryl Davis, president, Boeing Phantom Works."This test proves the technology has matured to the point that it opens the door to practical applications, such as advanced defense systems and more cost-effective access to space."