Wikipedia

Localizer performance with vertical guidance

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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 similar to those in an instrument landing system (ILS), that is, a decision altitude of 200 feet and visibility of 1/2 mile.[1]

Examples (from Garmin) are the GNS 480, GNS 430W, 530W, and the post 2007 Garmin G1000 with GIA 63W.

LPV is designed to provide 16 meter horizontal accuracy and 20 meter vertical accuracy 95 percent of the time. Actual performance has exceeded these levels. WAAS has never been observed to have a vertical error greater than 12 meters in its operational history.

As of January 15, 2009 the Federal Aviation Administration has published 1,445 LPV approaches at 793 airports. This is greater than the number of published Category I ILS procedures.

References

  1. ^ "LPV Approach - Localizer Performance with Vertical Guidance". aasfms.com. 2008. Retrieved 2010-02-07.

See also

  • [1] - FAA -- Maximizing Airport Operations Using the Wide Area Augmentation System
  • [2] -- Garmin Receives WAAS Certification for GNS 400W/500W Series
  • [3] -- FAA's Production Plan for IFR Procedures
  • [4] -- FAA LPV Procedures
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