Originally Posted by Morno
I was more responding to old mate who was blabbing on about QF 737’s being the only ones who could fly RNP procedures
Old mate was basically right though. QF 737s were doing things with GPS and FMS that you could only dream of a few years ago. You can call your GPS-NPA an RNP yada yada whatever all you like, the fact is that an RNP-AR, which QF has been doing for years, is a far more effective approach using GPS. As pointed out, your LNAV/VNAV straight in from 10nm with not a hill in sight is a far cry from an RNP-AR amoungst terrain. Even the shorter tracking makes a difference when you're paying the bills, especially given the nature of this topic. Try doing an LNAV/VNAV onto 17 at Canberra. I'll take old mate's "unnecessary and outdated" (your words) RNP-AR, thanks.