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waypoints with the same identifier and the type of facility or waypoint. Selecting
the latitude/longitude of the correct waypoint enters the correct waypoint on the
original page.
When a waypoint which has a duplicate identifier in the active route is entered in
the scratchpad and line selected, the SELECT DESIRED WPT page does not
display. A direct-to the downtrack waypoint displays on the ND. Entering the local
waypoint (the duplicate) using latitude/longitude, place/bearing/distance, or place
bearing/place bearing enables the modification.
• C( ) – final approach course fix
• F( ) – final approach fix
• P( ) – missed approach point
• I( ) – initial approach fix
• D( ) – minimum descent
altitude
• T( ) – touch down point
• R( ) – runway centerline
intercept.
• ()I–ILS
• ( )L – localizer only
• ( )B – backcourse ILS
• ()D–VOR/DME
• ()V–VORonly
• ( )S – VOR with DME points
• ()N–NDB
• ( )Q – NDB with DME points
• ()M–MLS
• ( )T – Tacan
• ()R–RNAV
October 1, 2000
747 Operations Manual
Flight Management, Navigation -
Flight Management System
Operation
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.31.15
Conditional Waypoints
Conditional waypoints may display in the route when selecting a DEPARTURES
or ARRIVALS page procedure. Usually, conditional waypoints cannot be
manually entered on a route or legs page. These waypoints indicate when an event
occurs and are not at a geographically–fixed position. The types of conditions are:
Altitude and course intercept conditional waypoints display on the CDU inside
(parenthesis) marks. The diagram below shows conditional waypoints.
(1000) is a conditional waypoint. LNAV guidance is to hold a 180° heading until
above 1,000 feet; then, turn to a heading of 140°.
• climb/descent through an
altitude
• flying a heading to a radial or
DME distance
• intercepting a course
• heading vectors to a course or
fix
RTE 1 LEGS
ABC/20
CDE
BCD
090 TO 20 DME
ABC180
H
ABC180
ABC/20
(INTC)
BCD
VECTORS
CDE
(1000)
TO 180R
140HDG
090 R
TO CDE
VECTORS
280 FOR
180HDG
TO 1000'
340TO BCD
TO INTC
020HDG
EXAMPLE: MEANING:
180 DG
140 HDG
090 HDG
020 HDG
340
280
270
ABC
Note: All waypoints except BCD and CDE are
examples of conditional waypoints.
October 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.31.16 D6-30151-425
Flight Management, Navigation -
Flight Management System
Operation
Manually Entered Latitude/Longitude Waypoints
Pilot defined waypoints entered as a latitude and longitude display in a
seven–character format. Latitude and longitude waypoints are entered with no
space or slash between the latitude and longitude entries. Leading zeroes must be
entered. All digits and decimal points (to 1/10 minute) must be entered unless the
latitude or longitude are full degrees. Examples:
• N47° W008° is entered as N47W008 and displayed as N47W008
• N47° 15.4’ W008° 3.4’ is entered as N4715.4W00803.4 and displayed as
N47W008
Manually Entered Place/Bearing/Distance or
Place Bearing/Place Bearing Waypoints
Waypoints entered as a place/bearing/distance or place bearing/place bearing are
identified by the first three characters of the entry followed by a two–digit
sequence number. Examples:
• SEA330/10 becomes SEA01
• SEA240/OLM320 becomes SEA02
The two digit sequence numbers reserved for RTE1 are 01 through 49. The two
digit sequence numbers reserved for RTE2 are 51 through 99.
Manually Entered Airway Crossing Waypoints
Airway crossing fixes are entered as a five character waypoint name or by entering
consecutive airways on the ROUTE page. In the latter case, the display is an X
followed by the second airway name. Example: entering J70 on the VIA line of
the ROUTE page causes box prompts to display opposite on the same line.
Leaving the box prompts empty and entering J52 on the next VIA line, directly
below J70, causes the FMC to calculate the intersection of the two airways and
replace the boxes with the waypoint identifier XJ52.
　
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