787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Descent and Approach
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 11.43.19
Valid entry is XXX.X.
Landing reference is selectable between QNH and QFE. Usually, QNH is the
operating mode.
The active mode displays in large green font. The inactive mode displays in small
white font.
Selecting QFE sets the cabin pressurization schedule, and the destination landing
altitude indication to zero altitude. With the landing reference set to QFE,
changing the barometric setting from STD to QFE changes the PFD altitude tape
background color to green. With QFE selected and climb phase active, changing
the barometric setting from QFE to STD causes the landing reference to toggle
from QFE to QNH and the green background color is removed.
For additional information, refer to:
• QFE Selection
, Ch. L, Sec. 10
• QFE Operation
, Ch. SP, Sec. 10
The displayed runway reference changes based on route progress. The destination
runway is the reference when the present position is more that halfway to the
destination or more than 400 NM from the origin airport. The origin airport
runway is the reference when less than halfway or less than 400 NM from the
origin airport.
Displays length of the new destination runway following a change of destination
on the ROUTE page or following execution of a DIVERT.
Displays the length in feet and meters of the referenced runway.
Push – displays the INT/REF INDEX page.
A gross weight is necessary for VREF speed calculation. Push the applicable line
select key to select the correct VREF speed. The three VREF speeds are based on
landing flap setting.
Displays the calculated reference speed for flaps 20°, 25°, and 30°.
Display is blank prior to having a valid gross weight on the PERF INIT page or
entering gross weight on this page.
The flap position and VREF speed is entered for landing.
The VREF speed displays on the PFD.
Deletion of the data removes VREF from the PFD.
2
Landing Reference (LANDING REF)
3
Runway Length
4
INDEX
5
FLAPS VREF
6
FLAP/SPEED
February 15, 2010
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