Localizer performance with vertical guidance: Difference between revisions

Revision as of 18:30, 12 January 2015

Revision as of 16:13, 29 April 2015

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'''Localizer performance with vertical guidance''' (LPV) are the highest precision [[GPS]] ([[WAAS]] enabled) aviation [[instrument approach]] procedures currently available without specialized aircrew training requirements, such as [[required navigation performance]] (RNP). Landing minima are usually similar to those inof ana Type I [[instrument landing system]] (ILS), that is, a decision height of {{convert|200|ft|m}} and visibility of 1/2 mile.<ref>{{cite web

| url=http://waasfms.com/waas-interface/lpv-approach-capability.htm

| title=LPV Approach – Localizer Performance with Vertical Guidance

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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.

Various FMS models, GNSS receivers and FMS upgrades are available from [[Rockwell_Collins]] (e.g.<ref>http://www.rockwellcollins.com/~/media/Files/Unsecure/Marketing%20Bulletins%20Rev1/BRS/MBLPV%20FMS%20Upgrade%20for%20CRJ200CL850%20BRS110403.ashx</ref>). Most new aircraft and helicopters equipped with integrated flight decks such as Rockwell Collins ProLine (TM) 21 and ProLine Fusion (TM) are LPV-capable. <ref>https://www.rockwellcollins.com/Data/Products/Integrated_Systems/Flight_Deck/Pro_Line_Fusion.aspx</ref>

LPV is designed to provide 16{{convert|25|ft|m}} metre horizontal accuracylateral and 20 metres vertical accuracy 95 percent of the time <ref>http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/documents/media/waas/2892bC2a.pdf</ref>. Actual performance has exceeded these levels. WAAS has never been observed to have a vertical error greater than 12 metres in its operational history.{{Citation needed|date=June 2013}}

As of JanuaryApril 152, 20092015 the Federal Aviation Administration has published 13,445534 LPV approaches at 7931,725 airports. This is greater than the number of published Category I ILS procedures.{{citation needed|date=March 2014}}<ref>http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/</ref>

As of April 3, 2014, there are 3,402 Wide Area Augmentation System (WAAS) LPV approach procedures serving 1675 airports.<ref>[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches]</ref>

==See also==