Scramjet reaches Mach 5

[Killer2005]

http://www.flightglobal.com/articles/2010/05/27/34...

article said:

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

[Lefty 200 Drams]

B, P & T

[turbobloke]

B, H & P