NASA Tests Navigational System for Future QueSST Demonstrations Written 21 May 2021

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Illustration of the X-59 QueSST as it flies above NASA's Armstrong Flight Research Center in California. | Lockheed Martin; NASA

ExecutiveGov reports that NASA “said Wednesday it tested the Airborne Location Integrating Geospatial Navigation System in preparation for future demonstrations of the Lockheed Martin-made X-59 Quiet SuperSonic Technology or QueSST plane.” Before 2024 demonstrations of the aircraft intended to quiet the sonic boom that occurs during supersonic flight, NASA “has to test X-59’s quietness through acoustic validation. An F-15 aircraft equipped with a shock-sensing probe will gather needed information by measuring QueSST’s shock waves.” 
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