Speed Freak:
however, i was told that this is not the case and apparently there are RNP values of .3, .5 and .6 for the approaches respectively. i have not been able to find these values in any airbus specific or general literature on RNP.
RNP = Required Navigation Performance. ILS, VOR, or NDB are not predicated on performance-based navigation.
Having said that, I can see the value of expressing an RNP value for VOR or NDB approaches if they are authorized for RNAV overlay flight of the final approach segment; i.e., "VOR or GPS Runway36," for example.
But, for ILS it makes no sense at all because ILS, per se, must be used to fly the ILS final approach segment and, in the U.S. at least, the ILS intermediate segment as well.