FMC Custom Waypoint Entry Notes

FMC WP Entry Notes

ALONGTRACK

FFF/#DD  Where:    FFF Fix Name (Usually three or five characters)    # = + (After fix) - (Before fix)    DD Distance

Note: Up select from scratch pad line to line after fix if point isafter fix; Up select from scratch pad to line that fix is on if point isbefore fix.

COURSE INTERSECTION

PPPPPBBB.B/PPPPPBBB.B  Where:    PPPPP Fix Names (Usually three to five characters)    BBB.B Bearing from fix to point (0-360 decimal optional)

Note: 737/747 Only; MD-11 use DIR INTC

PLACE BEARING/DISTANCE

PPPPPBBB.B/DDD.D  Where:    PPPPP Fix Name (Usually three to five characters)    BBB.B Bearing from fix to point (0-360 decimal optional)    DDD.D Distance from fix to point (1-700nm decimal optional)

LATITUDE / LONGITUDE

LongForm

737/ NDDMM.M/WDDDMM.M enter on LEGS page as NDDMMMWDDDMMM (without decimal point) SDDMM.M/EDDDMM.M enter on LEGS page as SDDMMMEDDDMMM etc 747/MD11: NDDMM.M/WDDDMM.M enter on LEGS page as NDDMM.MMWDDDMM.MM (with decimal point) SDDMM.M/EDDDMM.M, etc.

Note Longitude (E or W) is always three digits. Tip, convert MM SS toMM.M by dividing SS/60 and add the decimal to MM

ShortForm

NDDWDD Minutes are zero, Longitude is 3 digits NDDDDW Minutes are zero, Longitude is 2 digits

Examples of Short Form:

N latitude/W longitude N52 00/W075 00 = 5275N N50 00/W040 00 = 5040N N07 00/W008 00 = 0708N N75 00/W170 00 = 75N70 N07 00/W120 00 = 07N20
N latitude/E longitude N50 00/E020 00 = 5020E N75 00/E050 00 = 7550E N06 00/E008 00 = 0608E N75 00/E150 00 = 75E50 N06 00/E110 00 = 06E10
S latitude/W longitude S52 00/W075 00 = 5275W S50 00/W040 00 = 5040W S07 00/W008 00 = 0708W S75 00/W170 00 = 75W70 S07 00/W120 00 = 07W20
S latitude/E longitude S50 00/E020 00 = 5020S S75 00/E050 00 = 7550S S06 00/E008 00 = 0608S S75 00/E150 00 = 75S50 S06 00/E110 00 = 06S10

Note: The short forms are translated into position throughdefinitions in the navdata file wpNavFIX.txt

Thanks to Dan Downs for contributing this.

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