Thales FMGS - POSITION Monitoring

MULTI PHASE
38 NAVIGATION management & monitoring
7.3. POSITION monitoring

POSITION MONITOR page
Displays position data as computed
from the available navigation
systems.
Accessed by:
DATA KEY.......................Press
Data Index 1/2 page is displayed.
POSITION MONITOR [1L] ......
......................................Press
Data displayed are as follows:
− [Lines 1 & 2]: Positions computed
by FMGC 1 & 2; sensors providing
inputs for position computation are
indicated below (e.g. 3IRS/GPS),
− [Line 3]: GPIRS (GPS inertial), GPS
(GPS autonomous), RADIO
depending on installation and
availability of signals,
− [Line 4]: MIX IRS position; if one
IRS position gets invalid (ATT or
failure), the mixed IRS position is
the position of one of the 2
remaining IRS following priority
order: IRS OWN, IRS 3, IRS OPP,
− [Line 5]: Mode of each IRS (NAV,
ATT, ALIGN, INVAL), and drift (NM)
between each IRS and onside
FMGC.
Example shown is A/C equipped with
hybrid GPS.
See Part I: Ch 3.3 - Navigation/Flight
Management for other examples.
FREEZE prompt [6L] enables display to be frozen, to facilitate reading
or recording of data.
Title changes to POSITION FROZEN AT XXXX, showing time at which
display is frozen.
UNFREEZE prompt enables return to continuous updating of position
data.
If another page is selected, FREEZE function is automatically cancelled.
DATA INDEX 1/2 {}
POSITION
<MONITOR
IRS
<MONITOR
GPS
<MONITOR
<A/C STATUS
PRINT
FUNCTION>
AOC
FUNCTION>
POSITION MONITOR
FMGC1 4509.8N/00049.5E
3IRS/GPS
FMGC2 4509.8N/00049.5E
3IRS/GPS
GPIRS 4509.8N/00049.5E
MIX IRS 4509.8N/00049.5E
IRS1 IRS2 IRS3
NAV 0.0 NAV 0.0 NAV 0.0
SEL
<FREEZE NAVAIDS>
POSITION FROZEN AT 1356
FMGC1 4509.8N/00049.5E
3IRS/GPS
FMGC2 4509.8N/00049.5E
3IRS/GPS
GPIRS 4509.8N/00049.5E
MIX IRS 4509.8N/00049.5E
IRS1 IRS2 IRS3
NAV 0.0 NAV 0.0 NAV 0.0
SEL
<UNFREEZE NAVAIDS>
J43126AA 00
© THALES AVIONICS S.A.
AIRBUS A318/319/320/321