Section 3 Display Symbology
1
st
Ed Nov 2018
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
3-29
Table 3-10: CDI Behavior and Color
CDI Pointer and Condition
Color or Behavior
of the first fix in the departure
procedure.
Slaved to GPS/SBAS (with GPS
loss of navigation)
Amber (Yellow)
Normal conditions
Magenta
In sources other than FMS
Angular scale annunciation
Navigation source is localizer
(Course error exceeds 105°)
Reverse sensing
Lateral deviations in failed state
Red “X” displayed over CDI
EFIS not coupled with autopilot
Selected NAV source FMS2
Selected NAV source VOR1
Selected NAV source VOR2
EFIS coupled system with autopilot
Holding the wings level*
Tracking HDG BUG**
LNAV in ARM mode**
LNAV captured**
*No positive autopilot feedback/**Positive autopilot feedback
3.3.22. OBS Setting of CDI
In automatic mode, the system controls the scale and OBS setting. The
selected navigation source is annunciated below the CDI as follows:
1) NAV:
FMS1/FMS2
2) NAV:
VOR1/LOC1
3) NAV:
BC1/BC2
(annunciated instead of LOC1/2 when course error
exceeds 105°)
4) NAV:
VOR2/LOC2