Slashdot Mirror

MaximusTheGreat writes "While India has announced plans for a hypersonic plane (speeds greater than mach 5) before, this is the first time a firm date for test of an unmanned plane has been given. Final version of this plane called Aerobic Vehicle for Hypersonic Aerospace Transportation (AVATAR) is envisaged to deliver a 500 kg to 1,000 kg payload to low earth orbit. It will reduce the cost of space travel to a fraction to what it is today, by being completely reusable. Also, by allowing hypersonic speeds, it would for example reduce the travel time from Sydney, Australia to New York to less than 3 hrs. The crucial technology in the development of Hypersonic planes is supersonic combustion ramjet (scramjet). India has already demonstrated the basic technology of ramjets by the development of world's fastest cruise missile Brahmos which outspeeds famous US Tomahawk by three times, and by ground tests of scramjets. US, Australia and Japan are also pursuing similar programs."

Dspiral writes "At the Canadian publication, The Globe and Mail, they write about the scramjet. A jet engine, with theoretical speeds over 8000 Kph, and pollution free!" Zero pollution because its fuel is hydrogen (a scramjet takes its oxygen from the air). The HyShot homepage is amazing; the beast has been built on a shoestring, barely over a million dollars Australian, and my favorite part is their planned test: "...shooting an engine into the atmosphere on a rocket, and hoping it will ignite as it plunges back down to Earth. Mr. Paull's speed objective is Mach 7.6, and the engine should ignite 23-35 kilometres off the ground."