What does RNP stand for?

RNP stands for Required Navigation Performance. It is a specification that defines the navigation performance necessary for an aircraft to operate within a specified airspace or on a specific route. This concept emphasizes the required accuracy of the navigation systems and the level of performance needed for the operations, allowing for more efficient use of airspace and improved safety. RNP specifications usually involve criteria for lateral and vertical navigation performance, which are crucial for maintaining safe separations in more crowded airspace, particularly in approaches and departures in terminal airspace.

In aviation, understanding RNP is crucial for pilots, as it informs them about the capabilities of their aircraft's navigation systems and the requirements for operating within specific airspace designed for RNP operations.