Australia NewsAustralia-US Begin Hypersonic Weapons Collaboration Amid Arms Race With Russia, ChinaSaveMark Us Preferred on GooglePrintAn artistic rendition of DARPA’s Hypersonic Technology Vehicle (HTV-2). The Air Force wants to develop a new hypersonic vehicle. DARPADaniel Y. TengEditor12/4/2020|Updated: 12/4/2020Hypersonic cruise missiles which travel five times the speed of sound, are one step closer to being part of Australia’s arsenal.Last week Australia and the United States signed a new agreement to collaborate on developing and testing hypersonic cruise missile prototypes.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.