LNAV
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LNAV

In aviation, LNAV (short for lateral navigation; usually pronounced el-nav) is azimuth navigation without vertical guidance. RNAV approach plates include LNAV as a non-precision instrument approach (NPA). When combined with VNAV the instrument approach, LNAV/VNAV, is referred to as an Approach with Vertical Guidance (APV).[1]

Instrument Approaches

An LNAV approach is flown to a Minimum Descent Altitude, MDA, while an LNAV/VNAV approach is flown to a Decision Altitude, DA. If WAAS becomes unavailable, a GPS or WAAS equipped aircraft can revert to the LNAV MDA using GPS only.[1]:4–24,4–26

See also

External links

References

  1. ^ a b Instrument Procedures Handbook, FAA-H-8083-16B (PDF). US Dept. of Transportation, FAA Flight Standards Service. 2017. p. 4-26,4-50,G-6.

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LNAV
 



 



 
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