190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
61
FLIGHT INSTRUMENTS
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
Figure 2-27 Typical LNAV, LNAV+V, and Visual Approach CDI
Scaling
1.0 nm
2 nm
350 ft
angle set
by system
0.3 nm
FAF
CDI Full-scale Deflection
CDI scale is set to the smaller of 0.3 nm
or an angle set by the system
CDI scale varies if VTF is activated
Figure 2-28 Typical LNAV/VNAV, LPV, LP+V, and LP Approach
CDI Scaling
1.0 nm
2 nm
FAF
0.3 nm
course width
Landing
Threshold
CDI Full-scale Deflection
angle based
on database
information
CDI scale varies if VTF is activated
»
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
Flight Phase
Annunciation*
Automatic CDI Full-scale Deflection
Departure
DPRT
0.3 nm
Terminal
TERM
1.0 nm
Enroute
ENR
2.0 nm
Oceanic
OCN
4.0 nm
Approach
(Non-precision)
LNAV
1.0 nm decreasing to 350 feet depending on
variables.
Approach
(Non-precision with
Advisory Vertical
Guidance)
LNAV + V
VISUAL
Approach
(LNAV/VNAV)
L/VNAV
1.0 nm decreasing to a specified course width, then
0.3 nm, depending on variables.
Approach
(LPV)
LPV
Approach
(Non-precision with
Advisory Vertical
Guidance)
LP+V
Approach
(LP)
LP
Missed Approach
MAPR
0.3 nm
* Flight phase annunciations are normally shown in magenta, but when cautionary
conditions exist the color changes to amber.
Table 2-3 Automatic GPS CDI Scaling