Quote:
MakeitHappenCaptain:
The argument about NAIPS' prediction being more accurate is correct, but irrelevant as it is the GNSS unit's own database (as Glekichi has pointed out) that will determine if the unit sequences onwards, not NAIPS.
27/09
I don't believe this statement is correct.
The reason I said I didn't believe this to be correct is that even with a valid RAIM prediction if RAIM isn't available at the FAF the unit will not go into approach mode. So the factor that determines if it will sequence onwards isn't solely the GPS almanac.
I've said several times now that having a good RAIM prediction doesn't mean there will be RAIM available. Prediction and reality are different things.
Nothing incongruent with what I've said.
I'll concede to Oktas that there is no legislative requirement to do a RAIM check, but I would be concerned if people fronted their Initial CIR (in Aus anyway, don't know what the kiwi requirements are, that's 27/09's playground) and they refused to do a RAIM check based on PPRuNe advice.
I'd hope they'd do what they were taught during their training.