Final answer:
The term "airworthy" refers to an aeronautical product being in a fit and safe state for flight, complying with its type design. It ensures conformity with established safety and design specifications and is not about weight, maintenance schedules, or avionics tech.
Step-by-step explanation:
The definition of "airworthy" concerning an aeronautical product is A. In a fit and safe state for flight, and in conformance with its type design. This definition ensures that the aeronautical product, such as an aircraft or helicopter, complies with safety regulations and design specifications established by aviation authorities. An airworthy aeronautical product must operate as intended by its design, which includes proper maintenance, repair, and modification to meet these standards. A product's airworthiness is not directly related to specific weight criteria, the routine maintenance schedule, or being equipped with the latest avionics technology, though these factors can contribute to its overall safety and functionality.