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时间:2010-11-05 10:41来源:蓝天飞行翻译 作者:admin
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values increase ECON speeds. Entering zero results in maximum range airspeed
and minimum trip fuel. Cost index can be entered by the flight crew or from a
company route or uplink.
Valid entries are 0 to 9999.
Displays minimum fuel operating temperature (3 degrees C warmer than the fuel
freeze temperature for a given fuel).
Default value from the AIRLINE POLICY page displays in small font and may
not be deleted.
Valid entries are -99 to -1 in degrees C.
Flight crew entered value displays in large font.
When actual fuel temperature reaches the displayed value, the EICAS advisory
message FUEL TEMP LOW displays.
Used by FMC to compute maximum altitude and maneuver margin to buffet.
Displays default value of 30.0% in small font and may not be deleted.
Flight crew entered value displays in large font.
Valid entry is 14.0 through 44.0.
Displays the climb altitude increment used for planning the optimum climb
profile.
Default value is ICAO.
Valid manual entries are 0 to 9000 in 1000 foot increments.
In–flight entries are inhibited. In–flight step size changes are made on the CRZ
page.
For a non–zero entry, performance predictions are based on step climbs at
optimum points. For a zero entry, performance predictions are based on a constant
CRZ ALT.
Push – shows the THRUST LIM page.
8 COST INDEX
9Minimum Fuel Temperature (MIN FUEL TEMP)
10 Cruise Center of Gravity (CRZ CG)
11 STEP SIZE
12 Thrust Limit (THRUST LIM)
787 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Preflight
Boeing Proprietary 11.40.35
Thrust Limit Page
The thrust limit page allows selection and display of reference thrust for takeoff.
Takeoff thrust derate by use of assumed temperature is also accomplished on this
page.
Additional page data displays are:
• <SEL> – identifies the selected takeoff thrust reference mode
• <ARM> – identifies the armed climb thrust reference mode.
The <ARM> prompt changes to <SEL> when the armed climb mode becomes
active.
W8MT-34-00-0044
SEL / O AT
C/12o C
T O 1 P R
T O 2
T O 1
10 .6
INIT REF INDEX
PERF INIT
TAKROFF REF
THRUST LIM
THRUST LIM
<
>
THRUST LIM
<SEL> <ARM>
<TO
CLB 2>
CLB 1>
>
CLB>
2
<-10%
<-20%
---
<INDEX TAKEOFF
--------------------------------------
T
7
8
9
10
11
6
1
2
3
4
5
o
787 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Preflight
11.40.36 Boeing Proprietary
Entry of assumed temperature is allowed when the airplane is on the ground and
dash prompts or large font temperature data is displayed.
Entry of an assumed temperature warmer than the OAT reduces takeoff thrust and
displays D as part of the thrust reference mode.
Valid entries are 0 to 99 degrees Celsius (C) or 32 to 210 degrees Fahrenheit (F).
Entry of one, two, or three character temperature followed by “F” displays
assumed temperature in degrees F; otherwise, assumed temperature displays in
degrees C.
Uplinked temperatures display on both the THRUST LIM and TAKEOFF REF
pages.
Flight crew entered or uplinked values replace previously displayed values.
Entry of a value after takeoff speeds are selected deletes V speeds and displays the
CDU help window message TAKEOFF SPEEDS DELETED.
OAT displays outside air temperature in degrees C. When SEL temperature is in
degrees F, the OAT converts to degrees F.
When sensed OAT is not available, the slash is followed by box prompts allowing
manual OAT entry using one of the following formats:
• /SNN where S represents the sign and NN is a temperature value in the
range of -99 to +60 inclusive
• /SN where S represents the sign and N is a single digit temperature value
in the range of 0 to 9 inclusive
• /NN where NN is a two digit positive temperature value in the range of 00
to 60 inclusive, and
• /N where N is a single digit positive temperature value in the range of 0 to
9 inclusive.
The assumed temperature thrust derate is not the same as TO 1 and TO 2 fixed
thrust derates described below. If TO 1 or TO 2 is selected and an assumed
temperature is then entered, thrust is further derated.
If entry results in greater than a 25% reduction in thrust, the entered value is dialed
back to a value that result in a 25% reduction.
Push – selects full rated (TO) takeoff thrust limit.
 
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本文链接地址:787机组操作手册Flight Crew Operations Manual 3(52)