Heat and pressure sensors, and even video cameras, can be embedded in vehicles to gather data as they fly, providing "a level of detail and fidelity that we've never had before," says Ken Anderson, head of hypersonic air vehicles at Australia's Defence Science and Technology Organisation.
Similarly, Russia's deputy prime minister, Dmitry Rogozin, remarked last year that the design of hypersonic missiles had become a priority for the country.
Between them, DARPA and the Air Force Research Laboratory AFRLL) now have reams of technical data about launchers, re-entry vehicles, hypersonic aircraft, ramjets, scramjets, and everything in between the ground, the sky and beyond thanks to unmanned experimental vehicles like the X-37 spacecraft, the X-51 hypersonic aircraft and HTV-2 test vehicle.
These costs can account for 25% of the overall cost of a new aircraft, says Mr Villa.In this section Helpful junk I'm on the train Sail of the century Haute couture Reprints Related items Hypersonic aviation: Speed demonMar 25th 2004Another benefit is that Dassault can produce customised versions of the 7X in three months rather than six.
Aerion does not yet have a manufacturing partner, however.America's armed forces see potential in hypersonic aircraft, which fly at Mach 5 or faster using a type of engine known as a scramjet.
He reckons that scramjets might one day power civilian aircraft.Some military types have enthused that, before then, hypersonic troop carriers could be built.
Within 50 years, he continued, we would see hypersonic travel, with planes flying at 100,000 feet and commuters travelling from London to Sydney and back within a day.
The DF-21D, as it is called, is designed to descend from space at hypersonic speed and strike ships in the Western Pacific.
Carried by Rafale and Mirage fighter jets, they are thought to be able to fly for about 500km at Mach 3, or around 3,700kph.It's not rocket scienceBut reaching hypersonic speeds of Mach 5 and above with an air-breathing engine means getting combustion to happen in a stream of supersonic air.
Instead, they have now pinned their hopes on an alternative approach: superfast or "hypersonic" unmanned vehicles that can strike quickly by flying through the atmosphere, and cannot be mistaken for a nuclear missile.These hypersonic vehicles are not rockets, as ICBMs are, but work in a fundamentally different way.
