NASA’s experimental supersonic aircraft, the X-59, recently achieved a significant milestone by completing a series of comprehensive ground tests, simulating flight conditions without leaving the ground. These tests are crucial steps toward the aircraft’s first flight, anticipated later this year.
The X-59 underwent “aluminum bird” testing at Lockheed Martin’s Skunk Works facility in Palmdale, California. This process involved activating the aircraft’s systems and simulating flight scenarios to ensure all components function correctly together. Engineers introduced various simulated conditions, including system failures, to assess the aircraft’s responses and validate its safety and performance protocols.
Unlike traditional “iron bird” testing, which uses separate test rigs, the “aluminum bird” approach utilizes the actual aircraft, providing more accurate data and reducing the need for additional testing equipment.
The X-59 is designed to address the issue of sonic booms associated with supersonic flight. Its elongated nose and overall aerodynamic design aim to reduce the loud sonic booms to quieter “sonic thumps,” making supersonic flight over land more feasible and less disruptive.
The aircraft is powered by a General Electric F414 engine, mounted on top of the fuselage to minimize noise reaching the ground. It is expected to cruise at speeds of Mach 1.4 (approximately 925 mph) at an altitude of 55,000 feet.
With the successful completion of ground tests, the X-59 is progressing toward its first flight. Upcoming steps include taxi tests and further evaluations to ensure readiness for airborne operations. The aircraft is a central component of NASA’s Quesst mission, aiming to collect data that could lead to new regulations permitting commercial supersonic flights over land.
