A 320 Flight Management Function
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Joined: Aug 2001
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From: Above the Horizon
A 320 Flight Management Function
In the Limitations section of the FCOM, it is stated that FMGS Lateral and Vertical guidance is certified for Instrument Approach procedures except ILS, LOC , LOC BC , GLS etc. What does this mean?
Joined: Jul 2014
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From: UK
It is certified for RNAV/RNP approaches, and VOR and NDB Overlay approaches.
Joined: Jan 2008
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From: Denver
Put another way, the "FMGS lateral and Vertical guidance" is non-precision. You can use it for published RNAV/RNP approaches, you can use it to program/simulate/overlay with other published non-precision approaches (VOR and NDB).
But you cannot (or should not) use it for published precision approaches (ILS, LOC, etc.) - not accurate enough (yet). Skip the RNAV/VNAV, fly the real radio guidance beams (NAV 1 radio).
But you cannot (or should not) use it for published precision approaches (ILS, LOC, etc.) - not accurate enough (yet). Skip the RNAV/VNAV, fly the real radio guidance beams (NAV 1 radio).
