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.

  • whyNotSquirrel
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    1 year ago

    And you can add 1billion for the previous attempt

    The American government cancelled its SST project in 1971 having spent more than $1 billion without any aircraft being built.[299]