.
()I – ILS
Examples: CI32R, PV15, FN24L.
.
( )L – localizer only( )B –backcourse ILS
.
( )D – VOR/DME
.
( )V – VOR only
.
( )S – VOR with DME points
.
()N – NDB
.
( )Q – NDB with DME points
.
()M – MLS
.( )T – Tacan
. ( )R – RNAV.
Unnamed turn points – unnamed turn points that are part of a procedure are identified as a latitude and longitude waypoint. These include waypoints (except conditional waypoints) defined by flying a course or track from a waypoint (except conditional waypoints) to a radial or DME distance. These waypoints are automatically entered in a route by selection of a procedure using these waypoints, from the departures or arrivals page.
Airport reference points – airport reference points are identified by the ICAO identifier.
Duplicate Waypoint Names
Duplicate identifiers – should application of these rules result in more than one
waypoint having the same identifier, then a CDU page change occurs when an
attempt is made to enter the duplicated identifier.
YA613 - YD651, YK101 - YK104
The page title is SELECT DESIRED WPT.
YD652 - YD655
The page title is SELECT DESIRED XXX, where XXX is the three letter
identifier of the waypoint in question.
The page lists the latitude and longitude of waypoints with the same identifier and
the type of facility or waypoint. Selecting the latitude/longitude of the desired
waypoint enters the correct waypoint on the original page. See chapter 11, section
42, “Select Desired Waypoint Page” for additional information.
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Flight Management, Navigation -Flight Management System Operation 737 Flight Crew Operations Manual
When a waypoint identifier is listed in the route more than once, certain route modifications (such as DIRECT TO or HOLD) use the first occurrence of the waypoint even if the second occurrence is selected. If a new waypoint entry is attempted that has the same identifier as a waypoint already in the route, the select desired waypoint page will not be displayed and the first waypoint will be used. To use the second occurrence waypoint, the first occurrence waypoint must be deleted from the route.
Conditional Waypoint Names
Conditional waypoints are automatically entered into a route as a result of selecting a procedure on a DEPARTURES or ARRIVALS page. Normally, conditional waypoints cannot be manually entered on a route or legs page. These waypoints are events when a condition occurs and are not at a geographically–fixed position. The types of conditions are:
.
passing through an altitude . intercepting a course
.
flying a heading to a radial or . heading vector to a course or
DME distance fix.
Altitude and course intercept conditional waypoints are displayed on the CDU inside (parentheses) marks. The following diagram depicts conditional waypoints.
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Flight Management, Navigation -Flight Management System Operation
737 Flight Crew Operations Manual
Note: When (VECTOR) is the active leg and LNAV is not engaged, the FMC automatically sequence to the next waypoint when within 3 nm of the next leg. If (VECTOR) is the active waypoint and LNAV is engaged, the FMC does not automatically sequence to the next waypoint. The next waypoint becomes active only upon EXECution of the procedures for Proceeding Direct To a Waypoint or Intercepting a Leg to a Waypoint.
Manually Entered Latitude/ Longitude Waypoint Names
Pilot defined waypoints entered as a latitude and longitude are displayed in a five–character format. The first three characters are WPT followed by a two digit sequence number. 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 WPT01
.
N47° 15.4’ W008° 3.4’ is entered as N4715.4W00803.4 and displayed as
WPT02.
Copyright . The Boeing Company. See title page for details.
Flight Management, Navigation -Flight Management System Operation 737 Flight Crew Operations Manual
Manually Entered Place–Bearing/Distance or Place–Bearing/Place–Bearing Waypoint Names
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:
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