National Interest on MSN7mon
SR-91 Aurora: The Mach 5 Spy Plane Was Never Real (Just a Rumor)The idea of the Aurora emerged in the 1980s as a potential successor to the SR-71 Blackbird, with alleged capabilities of ...
Interesting Engineering on MSN15d
Mach 5+ speed: Germany plans hypersonic craft to counter China, shake army, space techGermany’s Federal Office of Bundeswehr Equipment, Information Technology, and In-Service Support (BAAINBw) has officially ...
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