What is NASA's X-59 designed to do?

References

Answer: Fly supersonic with only a quiet thump. In October 2026, US rules generally prohibit civil supersonic flight over land without special authorization. The X-59 is shaped so people below should hear a quiet thump instead of a loud boom.

1. Quesst: The Vehicle, NASA www.nasa.gov/quesst-the-aircraft

   Instead, the X-59 is designed to reduce that boom to a quieter sonic “thump.”

   Checked 2026-10-10.
2. NASA's X-59 Aircraft Flies Supersonic for First Time, NASA www.nasa.gov/aeronautics/x-59-first-supersonic-flight

   completed its first supersonic flight Friday, June 5, 2026

   Checked 2026-10-10.
3. Special Flight Authorization to Operate at Supersonic Speeds, FAA www.faa.gov/about/office_org/headquarters_offices/apl/aee/env_policy/sfa_supersonic

   all civil aircraft flights are prohibited from operating above Mach one speeds over land in the United States

   Checked 2026-10-10.

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