X57

X57 (often written with a hyphen as X-57) is a designation used across different industries to label a particular model, project, or component. It does not designate a single entity.

Among its uses, the best known is NASA's X-57 Maxwell, an experimental all-electric aircraft derived from a Tecnam P2006T airframe. The project is part of NASA's effort to explore electric propulsion and energy efficiency for small aircraft. The Maxwell aircraft employs distributed electric propulsion with multiple electric motors and power management systems intended to improve cruise efficiency and reduce noise. Development and flight-testing have occurred over the 2010s and into the 2020s as part of the agency's research program.

Outside aerospace, X-57 appears as a model or part number in various products, including electronics, automotive components, and software release identifiers. These uses are typically context-specific and not related to the NASA project.

In sum, X-57 is a generic designation whose meaning varies by context; where it appears, additional information is needed to determine the exact reference.