overmars
9th Mar 2010, 03:10
Hi, you can start off by reading this website:
Required Navigation Performance - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Required_Navigation_Performance)
Northbeach
9th Mar 2010, 03:15
RNP=Required Navigation Performance.
ANP=Actual Navigation Performance.
The Wikipedia link in the above post is a great place to start.