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RNAV (RNP) and RNAV (GPS) minima
Asked by: ZJAW 5376 views Aircraft Systems, FAA Regulations, Instrument Rating
When I look at RNAV RNP and GPS approaches to an identical runway, I get hung up on this: why would a carrier go through the trouble of obtaining RNP authorization when the published minimums are LOWER for a standard GPS approach procedure using LPV? As an example, I reference ATL's 8R approaches: RNP 0.15 DA is listed as 1370/56, and GPS LPV is 1285/45. Are they anticipating future improvements that will eventually tip in RNP's favor? What's the payoff?
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