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National Security Journal on MSN18h
The Mach 3 SR-71 Blackbird Was Built With Russian Titanium—And They Never Knew
Despite the legendary success of the Mach 3 SR-71 Blackbird, the Soviet Union never developed a direct equivalent, for ...
National Security Journal on MSN5d
We Don’t Really Know If the Mach 6 SR-72 Darkstar Is Real
The SR-72 “Darkstar” is the long-rumored hypersonic successor to the legendary SR-71 Blackbird, a secret project from ...
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