Garmin G950 - Page 80

Garmin G950 Pilot’s Guide for the Pilatus PC-6
190-00870-02 Rev. A68
FLIGHT INSTRUMENTS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
Figure 2-28 Typical LNAV and LNAV+V Approach Service Level
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 2-29 Typical LNAV/VNAV, LP, LPV, and LP+V Approach
Service Level 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 scaling 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 CA, CD, CF, CI, CR, DF, FA, FC, FD, FM, IF, or TF
- After any leg in the missed approach procedure that is not 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 2.0 nm
Approach
LNAV
LNAV+V
LNAV
LNAV+V
1.0 nm decreasing to 350 feet depending on
variables (see Figure 2-28)
Approach
LNAV/VNAV
LPV
LP
LP+V
L/VNAV
LPV
LP
LP+V
1.0 nm decreasing to a specified course width, then
0.3 nm, depending on variables (see Figure 2-29)
Missed Approach MAPR 0.3 nm
* Flight phase annunciations are normally shown in magenta, but when cautionary
conditions exist the color changes to yellow.
Table 2-1 Automatic GPS CDI Scaling