Defence Minister Linda Reynolds will announce the multi-billion-dollar plan on Tuesday,saying the Australian government is committed to"keeping Australians safe,while protecting the nation's interests in a rapidly changing global environment".
China and Russia have also been developing a range of new weapons including hypersonic and long-range ballistic missiles.
The government hopes to begin testing prototypes of the air-launched,long-range missiles within months,with the Australian Defence Force wanting them as part of its arsenal in the next five to 10 years.
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The new deal with the United States – known as the Southern Cross Integrated Flight Research Experiment (SCIFiRE) – is the culmination of 15 years of research between the two nations on hypersonic scramjets,rocket motors,sensors and advanced manufacturing materials.
The Australian government will now begin talking with Australian industry about rolling out a range of technologies to bring the hypersonic missiles from the testing phase to the production line for the Royal Australian Air Force.
Defence will not reveal the estimated cost of developing the new hypersonic missiles but it is expected to run into billions of dollars. A total of $9.3 billion was earmarked in this year's Force Structure Plan for high-speed long-range missile defences.