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That's fast...
https://armyrecognition.com/news/aerospace-news/2024/lockheed-martins-sr-72-the-hypersonic-successor-to-the-sr-71-blackbird-still-progresses
60 years later, it is about time someone beat Kelly Johnson.
Although to be fair to Mr. Johnson the guys today really aren't in his league considering the tools available now and then.
