Hi FE
Looks like you are quite knowledgeable about this always confusing matter.
I have seen plates with RNAV 1 or RNAV 5 written as well as RNP 1 and RNP 5.
I thought it was the same concept but now I learn it is not.
Where can I find more info about all that?
I mean good, understandable info, if it exists
many thanks