NASA’s X-59 quiet supersonic research aircraft completed its first low-speed taxi test at U.S. Air Force Plant 42 in Palmdale, California, on July 10, 2025. This marked the first time the one-of-a-kind experimental aircraft has ever moved under its own power.
During the test, engineers and flight crews monitored the X-59 as it moved across the runway, working to validate critical systems like steering and braking. The taxiing represents the start of the X-59’s final series of ground tests before first flight.
The X-59 is the centerpiece of NASA’s Quesst mission, which aims to demonstrate quiet supersonic flight by reducing the loud sonic boom to a quieter “thump.”
Image Credit: NASA/Carla Thomas