Transcription of GPS APPROACHES DISSECTED - Fred on Flying
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IFR Refresher February 2010 APPROACH ClINICThis is native behavior for a GPS. If you are off your enroute course, GPS mea-sures it as a cross-track error. GPS APPROACHES DISSECTEDDo you know the difference between an LNAV and an LPV? Lots has changed in the past five years. Here s a review. by Fred SimondsMy student looks at me, perplexed by the embarrassment of riches presented on a GPS approach plate:.There are three possibilities, all start-ing with L, Which approach are we doing? Our choices have multiplied in the last few years so now LNAV, LNAV/VNAV and LPV allow as many GPS approach-capable aircraft to use them as possible, and provide they a non-WAAS backup LNAV approach if WAAS isn t available.
8 IFR Refresher February 2010 APPROACH ClINIC LNAV/VNAV approaches are identi-cal. You can even fly the glidepath as long as you stop descending at the
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