Lockheed Martin, in partnership with NASA Aeronautics, has begun engine run testing for the X-59 QueSST, marking the final major system check before the aircraft's first flight.
This test is the first time the X-59 has been powered entirely by its own engines.
The testing focuses on verifying several critical systems, including inlet and nozzle performance, aircraft-engine structural interfaces, and engine control algorithms.
Now running on its own power, the aircraft's full integration and functionality are being tested.
After these successful runs, the X-59 will undergo further tests, including electromagnetic interference evaluations, simulated in-flight failures, and emergency power system validation.
The aircraft will then proceed to low-speed and high-speed taxi tests, preparing it for its first flight.