Postby HPB » 05 Feb 2015, 10:01
PBN describes the required navigation performance of the operation through a set of navigation specifications that include both Area Navigation (RNAV) and Required Navigation Performance (RNP) specifications.
The RNP specification differs from the RNAV specification due to the unique requirement for on-board performance monitoring and alerting functionality. The RNP specification is most commonly used for APCH, but might also be used for (e.g.) arrival or departure if no surveillance service is available.
Hans Petter Baardseng
Instrument Flight Procedure Designer
AVINOR