Two Hour Flight From Sydney To London A Reality

Supersonic Jet Engine Reaches Mach 10 During Testing
Scramjet Could Make Two Hour Flight From Sydney To London A Reality
Scientists from Australia's Defense Science and Technology Organization (DSTO) and the US Defense Advanced Research Projects Agency (DARPA) successfully launched one of the world's fastest air-breathing engine experiments in the Australian outback Friday.
The scramjet engine experiment reached speeds of up to Mach 10 -- ten times the speed of sound. Scramjets are air-breathing supersonic combustion ramjet engines that could make it possible for a two hour flight from Sydney to London, according to the DSTO.