US Air Force and Boeing researchers on 26 May took a leap towards harnessing hypersonic vehicles for space access or weapons applications with the longest-ever supersonic combustion ramjet-powered flight, off the southern California Pacific coast.
The Boeing Phantom Works-built X-51A Waverider
achieved 140s burn of its Pratt & Whitney Rocketdyne-built air
breathing scramjet engine and accelerated to 70,000ft (21,350m) and Mach
5 before controllers at the Point Mugu naval air warfare centre sea
range terminated the mission because of a loss of telemetry. Continue reading and watch a video...