National Interest on MSN5mon
Mach 6 SR-72 Son of Blackbird Could Soon Become Very RealSummary and What You Need to Know: Lockheed Martin’s SR-72 hypersonic ... like the Northrop Grumman-sourced RQ-180. Yet, ...
Besides the RQ-170, the Air Force has another secretive surveillance drone called the RQ-180. There have also ... is little ...
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