Air Force cites need to defend against enemy's hypersonic weapons
The Air Force is taking another step in an aggressive plan to prototype, test and deploy hypersonic weapons on an expedited schedule -- to defend against enemy attacks by fast-tracking an ability to launch high-impact, high-speed attacks at Mach. 5 - five times the speed of sound.
via FOX NEWS https://fxn.ws/2ppz53W
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