Localizer performance with vertical guidance: Difference between revisions

Revision as of 21:46, 6 October 2018

Revision as of 21:13, 12 October 2018

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| accessdate=2010-02-07

| archiveurl=https://web.archive.org/web/20090101015436/http://waasfms.com/waas-interface/lpv-approach-capability.htm

| archivedate=2009-01-01}}</ref> Lateral guidance is equivalent to a [[localizer]], and uses a ground-independent electronic glide path. Thus, the [[Decision altitude|Decision Altitude]], DA, can be as low as 200 feet. An LPV approach is an approach with vertical guidance, APV, to distinguish it from a precision approach, APPA, or a non-precision approach, NPA. WAAS criteria includes a vertical alarm limit more than 12 m, but less than 50 m, yet an LPV does not meet the [[ICAO]] Annex 10 precision approach standard.<ref name="FAA">{{cite book |title=Instrument Procedures Handbook, FAA-H-8083-16B |date=2017 |publisher=US Dept. of Transportation, FAA Flight Standards Service |page=G-6,4-26,4-50 |url=https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/instrument_procedures_handbook/media/FAA-H-8083-16B.pdf}}</ref>

Examples of receivers providing LPV capability include (from [[Garmin]]) the GTN 7xx & 6xx, GNS 480, GNS 430W & 530W, and the post 2007 [[Garmin G1000]] with GIA 63W.