Originally Posted by Rostrum
Bloggs; "So you've done a cost-benefit analysis on say a half a dozen airlines individually getting RNP-AR approvals".
No, I havn't, and you know that-so what is your point?
I thought you had because it appears, from your posts, you have already decided that RNP-ARs (and their setup and ongoing costs) were cheaper than an ILS.
My point is: if you're (either GCAL or the airlines) going to potentially fork out a few mill for a piece of infrastructure/capability, then you do a study to find out what is the most cost-effective way of doing it; either RNP-ARs or an ILS.