In July, Lockheed Martin completed the build of NASA’s X-59 test aircraft, which is designed to turn sonic booms into mere thumps, in the hope of making overland supersonic flight a possibility. Ground tests and a first test flight are planned for later in the year. NASA aims to have enough data to hand over to US regulators in 2027.
This way NASA can get 95% of the way with research/design then they can sell it cheaply to a chosen private sector firm who can make all the money.
Which firm? I’d pay attention to where memebers of Congress are investing
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