Lockheed’s D-21 Tagboard Supersonic Spy Drone

Article URL: https://www.thedrive.com/the-war-zone/27178/air-force-wanted-to-turn-skunk-works-mach-3-capable-recon-drone-into-a-nuclear-bomber

Comments URL: https://news.ycombinator.com/item?id=19516651

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