
Section 7 IFR Procedures
7-28
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
1
st
Ed Nov 2018
Table 7-8: Default Navigation Modes Based Upon Region of
Operation
Default
Navigation
Mode
Definition of Region
either segment leading into FAWP is not a holding pattern,
or pilot has elected to continue out of holding.
VFR
Approach
VFR approach has been selected; and
within 30NM of the active runway; and
active runway is the active waypoint; and
the bearing to the active runway/user waypoint is within
45° of the final approach segment track (treated as a
mode entry criteria); and
the aircraft track is within 90° of the final approach
segment track (treated as a mode entry criteria).
Terminal
Not in departure mode; and
Not in approach mode; and
The active waypoint is part of a departure or the active
waypoint and previous waypoint are parts of an arrival or
approach or within 30 NM of the departure airport, arrival
airport, or runway.
Enroute
Not in departure, approach, or terminal modes.
NOTE:
During RNP 0.3 Approach (manually or coded) the scale remains in RNP
0.3.
7.11. GPS/SBAS CDI Scale
Table 7-9: Summary of Changes In Cross-Track FSD
To Enroute
To Terminal
To Approach
From
Enroute
Change from ±2 NM
FSD to ±1 NM FSD
over distance of 1
NM; start transition
when entering
terminal mode.
From
Terminal
Change from ±1
NM FSD to ±2
NM FSD over
If VTF, switch
immediately.