What technique ensures separation between fixed and rotary wing operations?

The technique that ensures separation between fixed and rotary wing operations is coordination level. This concept involves understanding and managing the interactions and operational requirements of different types of aircraft. Fixed-wing aircraft and rotary-wing aircraft (helicopters) have distinct performance characteristics, flight profiles, and operational needs. Coordination level helps to create a framework in which these various aircraft can operate safely within the same airspace without conflicts.

This level of coordination can include various factors such as altitude separation, specific flight routes designated for either fixed or rotary-wing operations, and communication protocols between air traffic controllers and pilots. Proper coordination is essential in busy airspace environments to minimize the risk of incidents and ensure safe passage for all aircraft types.

Airspace management, while also crucial for safety and efficiency in aviation, focuses on the broader regulation and organization of airspace usage rather than the specific separation techniques between different aircraft types. Operational guidance provides general rules and best practices but does not solely focus on the separation of fixed and rotary-wing operations. Flight sharing, typically refers to the sharing of flight information or collaborative flights, but does not directly address the technical separation of different aircraft operations. Thus, coordination level is the most accurate answer in the context of ensuring safe operations between these aircraft types.