SYDNEY: Australian and US scientists have successfully tested hypersonic aircraft technology, which could revolutionise international flight, officials said Friday.The trial was the first of up to 10 tests to be conducted at the Woomera desert range as part of a joint US-Australian military research operation, said Defence Science Minister Warren Snowdon. The programme, called Hypersonic International Flight Research Experimentation (HIFiRE), is investigating hypersonics technology and its potential for next generation aeronautics. "Hypersonics is the study of flight exceeding approximately five times the speed of sound, and this trial has successfully tested the flight and mission control systems that will be used in future experiments," Snowdon said.The test vehicle was carried into space aboard a rocket launched from Woomera and then dived back into the atmosphere to test the hypersonic flight technology. Nitrogen gas valves were used as thrusters to manoeuvre the craft in space and correctly position it for reentry into the atmosphere, offering scientists a "wealth of new data," Snowdon said. Hypersonic technology offered "quantum leaps" in speed and fuel efficiency and had the potential to dramatically reduce intercontinental travel times, said Snowdon.
BAGHDAD: Nearly 500 U.S. Army combat engineers who specialize in clearing roads of explosives started shifting to southern Afghanistan."We are probably going to be the beginning of the influx you are going to see to Afghanistan," Lt. Col. Kevin Landers, commander of the Fort Carson, Colo.-based 4th Engineer Battalion, said as crews packed crates and cleaned vehicles for the flight to Kandahar.Obama has ordered 17,000 more U.S. soldiers and Marines to Afghanistan to bolster the 38,000 American troops already battling the resurgent Taliban."We are going to take this footprint out of Iraq," said Landers, whose battalion received word of its reassignment last month just after taking command of clearing roads in Baghdad of bombs and debris.
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