NASA’s X-59 Passes Electromagnetic Tests, Moves Closer to Historic Supersonic Flight

NASA’s X-59 quiet supersonic research aircraft has successfully cleared electromagnetic testing, marking a crucial step toward its highly anticipated first flight. The tests confirmed that the aircraft’s electronic systems operate safely without interference, ensuring reliable performance in real-world conditions.

Yohan Lin, NASA’s X-59 avionics lead, described the milestone as a “major hurdle” in the aircraft’s development. Conducted at Lockheed Martin Skunk Works in Palmdale, California, the tests assessed whether the aircraft’s onboard systems—radios, navigation equipment, and sensors—functioned without disrupting each other.

Electromagnetic interference (EMI) can occur when electrical or magnetic fields affect critical systems, potentially compromising an aircraft’s operation. To address this, engineers performed a “source-victim” test, activating each system individually and monitoring for malfunctions such as noise, glitches, or errors.

The X-59 is a key component of NASA’s Quesst mission, designed to reduce the noise of supersonic flight by generating a gentle sonic “thump” rather than the loud booms that currently restrict commercial supersonic travel over land. The project aims to collect data that could pave the way for regulatory changes, making faster air travel a reality.

Alongside the EMI tests, engineers examined the aircraft’s landing gear operation and fuel shutoff systems, ensuring they worked seamlessly without interference. Additional electromagnetic compatibility tests involved positioning the X-59 near NASA’s F-15D research aircraft to simulate real airborne conditions. The F-15D’s radar and communication systems were activated while the X-59’s engine was powered up, allowing NASA engineers to monitor for unexpected anomalies from a mobile operations facility.

Lin emphasized the importance of detecting and resolving potential electromagnetic interference on the ground before flight. Identifying issues early enhances safety and minimizes risks when the aircraft finally takes off.

With electromagnetic testing now complete, the X-59 will advance to aluminum bird tests, where engineers will simulate various operational conditions on the ground. This will be followed by taxi tests before the aircraft is finally cleared for its groundbreaking first flight.