Required Navigation Performance (RNP)


Required Navigation Performance (RNP) is a type of performance-based navigation (PBN) that allows an aircraft to fly a specific path between two 3D-defined points in space. It is a navigation specification under the PBN framework that uses on-board navigation systems and equipment to achieve a certain level of accuracy, integrity, availability, continuity, and functionality, which is necessary for the proposed operations in the airspace system. RNP specifications are expressed as a value in nautical miles which represents the navigation accuracy necessary for a particular procedure or a particular block of airspace. The key benefit of RNP is its ability to define how well an aircraft must stay on its intended course, which can lead to more efficient use of airspace, increased safety, and reduced environmental impact. It is a critical component in modern aviation, particularly in the context of NextGen air traffic management initiatives.


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