Interesting comments from some, who really should know better.
INS/GPS not approved as a primary means of navigation?
Hmm, have not noticed all that many VOR/DME's at 30West...or 140West for that matter. Last I noticed, pressure pattern navigation was not authorized on the OTS...but hey, maybe I missed an ammendment.
Some EGPWS are equipped with their own dedicated GPS (and terrain data base), thus are able to give warnings as needed.
Best piece of kit to come down the pike in many a moon, IMHO.
Should (IF used correctly) eliminate CFIT, and that is no small achievement, wouldn't you say?
Several US aircarriers use GPS for approaches (primary means of navigation)...Alaska Airlines the most, so far as I know.
Works good.
