MD-11 Flight Crew Operations Manual
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FMS -
Controls and Displays
FMS.30.95
IRS POS or IRS/GNS POS Pages
Lines 1 through 3 indicate the position of the three IRUs being used to calculate
the FMC position, along with relative bearing and distance (from the
FMC-calculated position to each IRU position) once the IRU is aligned. The label
lines in lines 1 through 3 display the status (NAV or ALIGN) of the respective
IRU. The time remaining before alignment is also displayed when the IRU is in
the ALIGN mode. The data lines will display the lat/long position of each IRU
when in the NAV mode and dashes when in the ALIGN mode.
Lines 4 and 5 indicate the position of the two GNSSUs being used to calculate the
FMC position, along with the relative bearing and distance (from the
FMC-calculated position to each GNSSU position) once the GNSSU is in the
NAV mode. The label lines in 4 and 5 display the status (NAV or ACQUIRE) of
the respective GNSSU. The satellite vehicles (SV) tracked are displayed at all
times for the GNSSUs.
1L
2L
3L
4L
5L
6L
1R
2R
3R
4R
5R
6R
LB1-3-0120A
October 02, 2006
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