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the page.
When the route includes SIDs and STARs, they can be entered using the
DEPARTURES or ARRIVALS pages.
Route discontinuities are removed and the route is modified on the ROUTE and
RTE LEGS pages. Speed/altitude restrictions are entered and removed on the RTE
LEGS page. RTE LEGS page is described in the FMCTakeoff and Climb section
of this chapter.
Waypoint, navigation, airport, and runway data is referenced on REF NAV DATA
page. REF NAV DATA page is described in the FMC Cruise section of this
chapter.
VNAV performance is improved if forecast winds and temperatures are entered
during the preflight. Wind and temperature data for specific waypoints is entered
on the theWIND page.WIND page is described in the FMC Cruise section of this
chapter.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.40.4 D6-30151-425
Flight Management, Navigation -
FMC Preflight
Preflight Pages – Part 1A
Preflight pages are presented in the sequence used during a typical preflight.
Initialization/Reference Index Page
Initialization/reference index page allows manual selection of FMC pages. It gives
access to pages used during preflight and not usually used in flight.
1 Identification (IDENT)
IDENT page is used to verify basic airplane data and currency of the navigation
database.
2 Position (POS)
POS INIT page is used for IRU initialization.
3 Performance (PERF)
PERF INIT page is used for initialization of data required for VNAV operations
and performance predictions.
IN I T /RE F I NDE X
< IDENT
POS
PER F
<
<
NA V DA TA >
< APP RO AC H M A IN T >
< TAK EO FF
< THR UST LIM
<INDEX
XXXXX
INIT
REF
1
2
4
5
6
7
3
December 01, 1999
747 Operations Manual
Flight Management, Navigation -
FMC Preflight
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.40.5
4 Thrust Limit (THRUST LIM)
THRUST LIM page is used to select thrust limits and derates.
5 TAKEOFF
TAKEOFF REF page is used to enter takeoff reference data and V speeds.
6 APPROACH
APPROACH REF page is used for entry of the approach VREF speed.
7 Navigation Data (NAV DATA)
REF NAV DATA page is used for data on waypoints, navaids, airports, and
runways. NAV DATA pages are accessible only from this page.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.40.6 D6-30151-425
Flight Management, Navigation -
FMC Preflight
Identification Page
Most data on this page is for flight crew verification. The active navigation
database can be selected.
1 MODEL
Displays airplane model from FMC performance database.
2 Navigation Data (NAV DATA)
Displays navigation database identifier.
3 Operating (OP) PROGRAM
Displays systems operating program identifier (FMC software load).
4 DRAG/Fuel Flow (FF)
Displays airplane drag and fuel flow correction factors.
1
5 2 7 0 9 4 4
.
D R A G / F F
1 1/ -3 . 5
C O D A T A
+ X Y 0001
-- --- -- -- ---- - -- --- --- --
I NDE X
- 8 0 C 2B F
I DE NT
7- 0
0 /
/
PS40 -
< PO S INI T>
MO DE L E N G I N E S
N A V D A T A A C T I V E
O P P R O G R A M
9
74
SE P 24 OCT 21 9
OC T 2 N OV 18 9
9
7
689 04 0 1
2
40
BO
<IDENT
INIT/REF INDEX
POWER
APPLIED
1
2
3
4
5
6
7
8
9
10
December 01, 1999
747 Operations Manual
Flight Management, Navigation -
FMC Preflight
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.40.7
5 INDEX
Push – displays INIT/REF INDEX page.
6 ENGINES
Displays engine model from the FMC performance database.
7 ACTIVE
Displays the effectivity date range for the active navigation database.
The active navigation database may be out of date. It can be changed to the
inactive navigation database. Pushing the date range prompt of the inactive
navigation database copies that date into the scratchpad. Pushing the date range
prompt of the active navigation database transfers the scratchpad date to the
ACTIVE database line. The previous active date moves to the inactive date line.
The line title ACTIVE is above the active navigation database date. No line title is
above the inactive navigation database date. The navigation database date can only
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