IFD400 Series Pilot Guide
Navigation 5-21
NAVIGATION MODE/CDI SCALE CHANGING
Each navigation mode has an associated CDI scaling associated
with it per the table below:
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: