EASA NAV(A)intermediate
Performance-Based Navigation (PBN) sets standards and specifications for Area Navigation (RNAV) and Required Navigation Performance (RNP) operations.
Answer
true
Explanation
### Why this is right
The material defines PBN as the framework that regulates RNAV and RNP operations through specifications and standards. These requirements cover navigation performance qualities such as accuracy, integrity, availability, continuity, and functionality.
### The concept
An aircraft may use different navigation specifications in different phases of one flight because route, airspace, and procedure requirements can change. The specification sets the performance that the operation must meet. The aircraft and crew must each be approved for the specification being used. PBN is therefore an operational framework, not a single sensor or satellite constellation.
### Terms
- **Performance-Based Navigation (PBN)**: standards and specifications that define required navigation performance for operations.
- **Area Navigation (RNAV)**: navigation using appropriate sensors to determine aircraft position.
- **Required Navigation Performance (RNP)**: RNAV with performance monitoring and alerting.
- **Integrity**: confidence that navigation information is valid and that relevant problems are identified.
- **Availability**: whether the required navigation service is usable when needed.
- **Continuity**: whether the service can remain available throughout the required operation.
### Remember
PBN specifies required performance; it is not itself a navigation sensor.
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