Garmin G1000 Pilot’s Guide for the Socata TBM 850
190-00709-00 Rev. A
2-24
FLIGHT INSTRUMENTS
Figure 2-36 Typical LNAV and LNAV+V 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 2-37 Typical LNAV/VNAV and LPV 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
2.0 nm
Approach
(Non-precision)
LNAV
1.0 nm decreasing to 350 feet depending on
variables (see Figure 2-36)
Approach
(Non-precision with
Vertical Guidance)
LNAV + V
Approach
(LNAV/VNAV)
L/VNAV
1.0 nm decreasing to a specified course width, then
0.3 nm, depending on variables (see Figure 2-37)
Approach
(LPV)
LPV
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 2-2 Automatic GPS CDI Scaling
