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2 Runway Length
Displays length of departure runway until destination runway or approach entered
into active route and airplane is 50 NM from departure airport or halfway to
destination.
Displays runway length in feet and meters.
Display clears at flight completion.
3 INDEX
Push – displays INT/REF INDEX page.
4 FLAPS VREF
Displays computed VREF for the indicated landing flap settings at displayed gross
weight. Blank until gross weight entered.
Push - displays flaps/VREF in scratchpad for entry in 4R.
5 FLAP/SPEED
Valid entries are: XX/YYY, /YYY, or YYY. XX is flap setting, YYY is airspeed.
Entry displays VREF speed on PFD. Entry of an airspeed greater than VREF
increases the entire flap speed schedule by the increased amount. If no VREF is
selected or an entry is not made, displayed flap speeds are based on flap position
increments above VREF 30 for the current gross weight.
Deletion of data removes VREF from PFD.
6 Thrust Limit (THRUST LIM)
Push – displays THRUST LIM page.
October 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.43.18 D6-30151-425
Flight Management, Navigation -
FMC Descent and Approach
Holding
The route hold page is used to enter holding information in the route or to view or
modify an existing holding pattern.Modifications made to a holding pattern while
active in the hold become effective on the next crossing of the holding fix.
Route Hold Page With No Holding Fix in Route
When no hold exists in route, pushing the HOLD key displays RTE LEGS page.
RTE LEGS page displays prompts to enter the holding fix as a route waypoint or
at present position.
71 0 7
71 0 7
71 0 7
ACT RTE 1 LEGS 1 /
- -- --- -- H O L D A T - --- -- ---
PP 0S>
`
`
` 2 N M
1
0 8 8 1 9 N M
N M
E LN
O 4 3
Q UI NT
0 4 4
E PH
- -- --
5
2
2
. / 1 0 0 0
. / 1 0 0 0
. / 1 0 0 0
<NEXT HOLD
ACT RTE 1 HOLD
HOLDING
IN ROUTE
FIX
NO
HOLDING
IN ROUTE
FIX
HOLD
1 2
December 01, 1999
747 Operations Manual
Flight Management, Navigation -
FMC Descent and Approach
Copyright © The Boeing Company. See title page for details.
D6-30151-425 11.43.19
1 HOLD AT Boxes
Boxes can be displayed on anyRTE LEGS page.
Valid entry is any RTE LEGS waypoint, database waypoint, or pilot-defined
waypoint.
Along-track waypoints must be entered over the original waypoint, then in the
boxes.
If holding fix not in active route, waypoint is entered in scratch pad, then selected
to HOLD AT boxes. HOLD AT XXXXX displays in scratch pad. Selecting HOLD
AT XXXX to desired line displays RTE HOLD page; cannot be selected as the
active waypoint.
2 HOLD AT PPOS
Push -
• creates holding pattern at present position
• execution establishes the holding fix at the position when EXEC is pushed
and displaysRTE HOLD page
Route Hold Page After Pushing PPOS And Executing
7 / 0 0 0
X T
. N M
2 2
K
S P D / T G T A L T
F I X E T A
1 4 . 5 z
EF C T I ME
Z
H O L D A V A I L
B E S T S P E E D
270 T
N E H O L D EX I T HO LD>
8 R
N 4 7 W 1
A C T
5
-- - --
- - -
-
L E G D I S T
M I N
<
1 .
L E G T I M E
I N B D C R S / D I R
0 ` / T U R N
Q U A D / R A D I A L
/
- - - - - - - - - - - - - - - - - - - - - - -
F I X
R T E 1 H O L D 1 / 1
8
9
39
2 0 1
- - - -
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
11.43.20 D6-30151-425
Flight Management, Navigation -
FMC Descent and Approach
Route Hold Page With Holding Fix in Route
When a hold(s) exists in the route, hold page 1/X displays first existing hold.
When more than one hold exists, pushing NEXT PAGE displays succeeding holds.
Most holding patterns are part of a procedure or airway and remain active until the
flight crew executes an exit from holding. This may be accomplished in one of
two ways:
• on the ACT RTE LEGS page, deleting or bypassing the HOLD AT
waypoint causes LNAV to command a direct to the next waypoint
• on the ACT RTE HOLD page, selecting and executing EXIT HOLD>
causes LNAV to command the airplane to continue in the holding pattern
until arriving at the holding fix, at which time the airplane exits the
　
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