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WATCH: NASA’s Supersonic X-59 Pushes the Envelope

Researchers are validating the aircraft’s performance before propelling it to supersonic speeds.

Tuesday, May 05, 2026 at 03:43 PM ET

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The X-59 conducts a bank-to-bank autoroll maneuver during a recent test flight in California. [Credit: NASA/Lori Losey]

Key Takeaways:

NASA and Lockheed Martin's experimental X-59 aircraft is undergoing envelope expansion testing to demonstrate its ability to produce a "sonic thump" rather than a loud sonic boom.
The X-59 has completed 13 test flights, gradually increasing speed and altitude, and performing various maneuvers to validate its performance and stability before breaking the sound barrier.
The ultimate goal of the X-59 project is to gather public feedback from community noise surveys, providing data that could lead regulators to lift the long-standing ban on commercial supersonic flight over land.

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NASA and Lockheed Martin’s experimental supersonic X-59 is demonstrating that envelope expansion testing is about more than flying faster and higher.

Ultimately, the goal is to bring the aircraft to a speed of Mach 1.4 and altitude of 55,000 feet, under which conditions it is expected to produce a “sonic thump,” or quiet sonic boom. A planned community survey of the X-59’s noise levels could give regulators and lawmakers the evidence they need to chart a return to commercial supersonic flight.

Jack is a staff writer covering advanced air mobility, including everything from drones to unmanned aircraft systems to space travel—and a whole lot more. He spent close to two years reporting on drone delivery for FreightWaves, covering the biggest news and developments in the space and connecting with industry executives and experts. Jack is also a basketball aficionado, a frequent traveler and a lover of all things logistics.