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NOTE: A selected crosstrack will also be canceled by any leg
change. Automatic leg changes will occur at a distance
computed to allow smooth capture of the next leg.
NOTE: FMS HDG mode will take priority over selected crosstrack
if both modes are active. Both FMS HDG and SXTK
annunciators will be illuminated and the deviation display
will be referenced to the parallel (offset) course.
Section V
Operations
5-54 2423sv602
Change 1
Pseudo-VOR Function
The PVOR (Pseudo-VOR) page provides the capability to track to or
from any known waypoint on a programmed course or radial. The
PVOR page is accessed from NAV page 1 (page 2 when in the
Approach mode) or the DTO page by pressing the PVOR line select
key.
To program a PVOR from this page:
1. Select a waypoint by accepting the TO waypoint or entering the
appropriate reference number of another waypoint in the flight
plan in the WPT field. A listing of flight plan waypoints is
displayed on the left side of the page. If there are more
waypoints in the flight plan, they can be viewed by using the
PREV or NEXT keys. A new waypoint may be selected by
entering a reference number from the flight plan, using the LIST
function, or manually typing in the new identifier. When the
waypoint is entered, the cursor will advance to the DESIRED
TRK entry field.
2. Enter the DESIRED TRK. To follow a desired track outbound
from a PVOR, a gap (*GAP*) must follow the PVOR waypoint on
the flight plan. (or)
3. Enter the RADIAL INBND / OUTBND. The desired track to be
flown to or from the PVOR may be identified here by defining a
radial to be flown inbound to or outbound from the PVOR
waypoint. When selecting a radial to fly outbound from the
PVOR waypoint, the waypoint name is changed to <VECTOR>.
An external (dashed) course line is drawn through the waypoint
to Collins advanced EFIS.
Section V
Operations
2423sv602 5-55
Change 1
4. Press ACCEPT to accept the PVOR. With the cursor over this
option, pressing the line select key or the ENTER key will cause
the PVOR to become active and return the display to the NAV
page with "PVOR" in the FR position and the PVOR waypoint in
the TO position. Steering commands will provide a 45° intercept
of the PVOR desired track, or the CMD HDG function may be
used to define a desired intercept heading.
To delete a PVOR:
1. Conduct a DTO function or a manual leg change, or select the
Approach mode, to delete the PVOR function.
Gaps In The Flight Plan
A gap is a break in the flight plan designed to prevent the computer
from making an automatic leg change as the TO waypoint is passed.
A gap may be desirable, for example, between the destination
airport and the alternate airport. Gaps may occur in the stored routes
when a new data base is loaded. To insert a gap in a flight plan:
1. Press the FPL key to access the flight plan. Use the PREV and
NEXT keys to find the waypoint to follow the gap.
2. Press the line select key next to that waypoint to put the cursor
over it.
3. Press the LIST key to access the LIST page.
4. Press the GAP line select key.
Gaps are deleted from the flight plan in the same manner as
waypoints. To delete a gap from the flight plan, refer to the DELETE
WAYPOINT(S) FROM FLIGHT PLAN procedure in this section.
CAUTION: When a GAP is encountered, the flight plan will not
autosequence to the next leg. The aircraft will
continue to fly over the TO waypoint on last desired
track (0° roll steering) with NAV and VNAV flags out of
view on the HSI. IT IS THE RESPONSIBILITY OF
THE PILOT TO TAKE APPROPRIATE ACTION TO
CONTINUE ACCURATE NAVIGATION OF THE
AIRCRAFT. He may go "Direct To" or edit the gap out
of the flight plan.
Section V
Operations
5-56 2423sv602
Change 1
The fuel management data presented on the fuel mode pages is
referenced to the last waypoint prior to a gap on the flight plan if the
pilot has not chosen a DESTINATION on the FPL Arrivals page. If a
destination has been chosen, the data will be referenced to the
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