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• A – cross at or above altitude
• B – cross at or below altitude
• both – altitude block. If constraint is to cross between two altitudes when
climbing, enter lower altitude followed by“A”; then, enter higher altitude
followed by “B”. Example: 220A240B. Reverse the order for descent
• S – planned step climb (refer to Flight Management, Navigation, Cruise)
6 Distance to Waypoint
Distance (decreasing) from airplane to active waypoint or distance from waypoint
to waypoint. Blank for some leg types (e.g. HDG or VECTORS).
7 Waypoint Speed/Altitude Predictions
Waypoint speed and altitude predictions display in small font.
Dashes display in predicted descent region prior to descent path calculation.
Descent path calculation requires altitude constraint below cruise altitude.
Manual entry allowed in climb or descent phase.
8 ACTIVATE, Route (RTE) DATA
Push –
• ACTIVATE – activates inactive flight plan; ready for execution
• RTE DATA – displays route data page
ACTIVATE displays when RTE and RTE LEGS flight plan is inactive.
RTE DATA displays after pushing ACTIVATE prompt.
9 Center (<CTR>)
Displays when PLAN mode selected.
December 01, 1999
747 Operations Manual
Flight Management, Navigation -
FMC Takeoff and Climb
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.41.9
Displays adjacent to the waypoint around which ND plan mode is centered.
10 MAP Center (CTR) STEP
Replaces ACTIVATE or RTE DATA when PLAN mode selected.
Push - steps <CTR> to next waypoint. ND plan mode recenters.
Direct/Intercept Course
Used to fly direct to or intercept a course to a waypoint. Entering a waypoint over
the active waypoint displays direct/intercept prompts.
1 Course to ActiveWaypoint
Prior to execution, displays direct-to inbound course at waypoint; changed by
entry in INTC CRS line or by selecting intercept course.
After execution, displays current required track to fly inbound course to waypoint.
2 ActiveWaypoint
Displays crew entered direct/intercept waypoint.
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December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.41.10 D6-30151-425
Flight Management, Navigation -
FMC Takeoff and Climb
3 ABEAM Points (PTS)
Push -
• line title displays ABEAM PTS, line data displays SELECTED
• creates abeam points on new route to indicate waypoints bypassed by
direct to function
• abeam points are perpendicular to the waypoints bypassed
• subsequent route modifications remove ABEAM PTS prompt
4 Route (RTE) COPY
Push -
• copies active unmodified route into inactive route
• erases previous inactive route
• line title displays RTE COPY, line data displays COMPLETE
• subsequent route modifications remove RTE COPY prompt
5 Intercept Course
Displays boxes if entered waypoint not in the active route; valid entry is intercept
course from 000° to 360°.
Displays current route course and prompt caret if entered waypoint in the active
route.
Push -
• when current route course displayed, selects it as intercept course to active
waypoint
• displays entry or current route course as course to active waypoint
• removes ABEAM PTS and RTE COPY prompts
December 01, 1999
747 Operations Manual
Flight Management, Navigation -
FMC Takeoff and Climb
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.41.11
Select Desired Waypoint Page
The SELECT DESIRED WPT page displays after a waypoint entry when the
FMC encounters more than one location for the same waypoint name. Selection
of a waypoint returns the display to the previous page.
1 Identifier
Displays the identifier for the duplicate named waypoints.
2 Waypoint Lines
Display a sorted list of waypoints with identifier, navaid type, frequency, and
coordinates;
• when page is accessed as a result of a flight plan modification, sort is
　
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