Ils Approach Mode Tracking Pfd - Honeywell PRIMUS 1000 Pilot's Manual

PRIMUSr1000 Integrated Avionics System
Gain programming is performed on the GS signal to compensate for the
aircraft closing on the GS antenna and beam convergence caused by
the directional properties of the antenna, as shown in figure 8--20. GS
programming is normally a computed function of radio altitude (if
available).
If radio altitude is not available, then GS gain programming is a function
of vertical speed (VS), true air speed (TAS), and time.
The approach mode is cancelled by any one of the following actions:
Pushing the APR or NAV buttons on the GC
D
Loss of ILS GS data
D
Selecting go--around
D
Selecting HDG on the mode selector
D
Changing navigation or heading sources.
D
Modes of Operation
8-24
30
20
30

ILS Approach Mode Tracking PFD

Figure 8--19
30
1500
20
30
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