AeroNav 900/880 Series Pilot’s Guide
89000039-010
6-22 Navigation Rev 1 May 2019
NAVIGATION MODE/CDI SCALE CHANGING
Each navigation mode has an associated CDI scaling associated
with it per the table below:
2.0 NM (5.0 NM for non-
WAAS)
0.3 NM or 2°, whichever is less
at the FAF
In order to prevent abrupt changes to CDI deflection (especially
important during autopilot-coupled operation), the mode changes
and CDI full scale deflection changes are gradual.
Automatic transitioning between the navigation modes occurs in
accordance with the following diagram:
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