If the approach has published LPV minimums, pilots will find the LNAV/VNAV option to be selectable regardless of whether the approach plate actually contains published LNAV/VNAV minimums. However, if the desired minimum type is either LNAV or LNAV/VNAV, the pilot must manually change the minimums type selection by using the RNAV MIN prompt shown in Figure 1. The reason for this is that the FMS is using the Final Approach Segment (FAS) data block when the LPV minimum type is selected. Note that examples in this article use FMS pages and line select keys (LSKs) for the Honeywell NZ FMS, while this logical design is not restricted to NZ FMS.įor RNAV (GNSS) approaches or RNP approaches of the non-AR variety, Honeywell FMS selects the “LPV” RNAV MIN type by default. This series begins with approach minima since there has been some recent confusion regarding the available minima selectable on the FMS ARRIVAL page versus what is charted on an approach plate. By understanding the logic behind how the FMS operates, pilots will get a better idea of how FMS pages are formatted and populated, as well as see how the aircraft executes instructions and complies with settings. This article, Part 1 in a three-part series, provides a deeper understanding of Honeywell FMS logic by looking at approach minima. Honeywell Guide to Advanced Air Mobility Experts.Engine & APU Service Plan Authorizations.Business & General Aviation Service Center Tools.Component Maintenance Modification Cards.

Universal fms trainer