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The Aviationist on MSN3h
The Secretive D-21 Drone and Operation Senior BowlEven more Top Secret than the Lockheed SR-71, the D-21 drone was a promising Cold War idea that could have eliminated the need for manned overflights, ...
The aerospike has been sought as a replacement for traditional rocket engines for many years. The combination of AI and 3D ...
National Security Journal on MSN2h
The Mach 3 A-12 Oxcart Spy Plane Summed Up in 4 WordsLong before the SR-71 Blackbird captured the world’s imagination, its secret predecessor, the A-12 Oxcart, flew faster and ...
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