787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
Flight Management System
Operation
Copyright © The Boeing Company. See title page for details.
11.31.14 D615Z003-TBC
N is used for north latitude, west longitude. E is used for north latitude, east
longitude. S is used for south latitude, east longitude. W is used for south latitude,
west longitude. Examples:
Procedure Arc Fix Waypoint Names
Unnamed terminal area fixes along a DME arc procedure are identified with the
first character D. Characters 2 through 4 indicate the radial on which the fix lies.
The last character indicates the arc radius. The radius is expressed by a letter of
the alphabet where A = 1 mile, B = 2 miles, C = 3 miles and so forth. Example:
• EPH252°/24 = D252X
An unnamed waypoint along a DME arc with a radius greater than 26 miles is
identified by the station identifier and the DME radius. Example:
• CPR338°/29 = CPR29
When there are multiple unnamed waypoints along a DME arc with a radius
greater than 26 miles, the station identifier is reduced to two characters, followed
by the radius, and then a sequence character. Examples:
• CPR134°/29 = CP29A
• CPR190° /29 = CP29B
DME step down fixes are identified by the distance and a “D”.
Examples: 138D, 106D, 56D, 3D
Procedure Fix Waypoints
Marker beacons are identified by the marker type identifier followed by the
runway number. Examples:
• Outer Marker 13R = OM13R
• Middle Marker 21 = MM21
Runway–related fixes – waypoints located at unnamed runway–related fixes are
identified by adding a two–letter prefix to the runway number. The following list
is used to determine the applicable prefix:
• N50° W040° becomes 5040N
• N75° W170° becomes 75N70
• N50° E020° becomes 5020E
• N06° E110° becomes 06E10
• S52° W075° becomes 5275W
• S07° W120° becomes 07W20
• S50° E020° becomes 5020S
• S06° E110° becomes 06S10
• RX – runway extension fix
• FA – VFR final approach fix
• CF – final approach course fix
• FF – final approach fix
• IF – initial approach fix
• OM – outer marker
• MM – middle marker
• IM – inner marker
• BM – back course marker
• MD – minimum descent altitude
• A – (+ an alpha) step down fix
• RW – runway threshold
• MA – missed approach point
other than RW
• TD – touchdown point inboard
of RW
August 14, 2009
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