ameet0121:
In India major airports have Performance Based Navigation SIDS and STARS which require aircraft to be RNAV1 complient. RNP is also performance based alert. Then what is difference between PBN and RNP.
From the U.S. pilot/controller glossary:
NAVIGATION SPECIFICATION [ICAO]- A set of aircraft and flight crew requirements needed to support performance-based navigation operations within a defined airspace. There are two kinds of navigation specifications:
a. RNP specification. A navigation specification based on area navigation that includes the requirement for performance monitoring and alerting, designated by the prefix RNP; e.g., RNP 4, RNP APCH.
b. RNAV specification. A navigation specification based on area navigation that does not include the requirement for performance monitoring and alerting, designated by the prefix RNAV; e.g., RNAV 5, RNAV 1.
Note: The Performance-based Navigation Manual (Doc 9613), Volume II contains detailed guidance on navigation specifications.