Garmin G1000 NXi Pilot's Manual page 74

FLIGHT INSTRUMENTS
- Upon reaching the first waypoint of an arrival route that is more than 31 nm from the destination airport,
the flight phase changes to terminal and the CDI scale begins to decrease from 2.0 nm to 1.0 nm over a
distance of 1.0 nm.
• During approach, the CDI scale decreases even further (Figures 2-26 and 2-27). This transition normally
occurs within 2.0 nm of the final approach fix (FAF). The CDI changes to approach scaling automatically
once the approach procedure is activated or if Vectors-To-Final (VTF) are selected.
- If the active waypoint is the FAF, the ground track and the bearing to the FAF must be within 45° of the
final approach segment course.
- If the active waypoint is part of the missed approach procedure, the active leg and the preceding missed
approach legs must be aligned with the final approach segment course and the aircraft must not have
passed the turn initiation point.
CDI scale varies if VTF is activated
Figure 2-24 Typical LNAV, LNAV+V, and Visual Approach CDI
• When a missed approach is activated, the CDI scale changes to 0.3 nm.
• The system automatically switches back to terminal mode under the following conditions:
- The next leg in the missed approach procedure is not aligned with the final approach path
- The next leg in the missed approach procedure is not a CA, CD, CF, CI, CR, DF, FA, FC, FD, FM, IF, or TF
- After any leg in the missed approach procedure that is not a CA or FA
60
CDI scale is set to the smaller of 0.3 nm
or an angle set by the system
angle set
by system
2 nm
FAF
Scaling
Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
2 nm
CDI scale varies if VTF is activated
Figure 2-25 Typical LNAV/VNAV, LPV, LP+V, and LP Approach
CDI Scaling
angle based
on database
information
FAF Landing
Threshold
190-02177-00 Rev. A