Definition
A higher level of Required Navigation Performance (RNP) that allows aircraft to fly precise, repeatable curved and complex approach paths using on-board navigation performance monitoring and alerting. Advanced RNP requires the aircraft to stay within a specified lateral accuracy (typically 1.0 NM or less) for 95% of the flight time, and the avionics must alert the crew if that accuracy can no longer be maintained.
Plain English
A more capable form of satellite-based navigation that lets an aircraft fly tight, curved flight paths very accurately, and warns the pilots automatically if the system can no longer hold that accuracy.
Context Anchor
Seen in performance-based navigation approvals, instrument procedure design, avionics capability lists, and route or procedure requirements.
Derivation
‘Required Navigation Performance’ describes a navigation standard the aircraft must meet. ‘Advanced’ signals a more demanding version of that standard — tighter accuracy, curved paths, and built-in monitoring. Knowing this helps separate it from basic RNP, which has looser tolerances and fewer required features.
Why Pilots Care
Aircraft and crews must be specifically certified and trained for Advanced RNP procedures. Flying an A-RNP approach without the right equipment or authorisation is not legal, and the tight accuracy requirements affect how the aircraft must be operated and monitored throughout the procedure.
Intuition Check
“Advanced” does not mean the pilot simply needs more skill. Here it means the aircraft and operation must meet added navigation capability and approval requirements.
Example Sentence 1
The new approach into the mountain airport requires Advanced-Required Navigation Performance because of the curved path between the ridges.
Example Sentence 2
Advanced-Required Navigation Performance allows the crew to fly a curved path to the runway with tight containment limits.