787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Instruments, Displays -
Electronic Flight Bag - System
Operation
Copyright © The Boeing Company. See title page for details.
10.80.22 D615Z003-TBC
Calculating Takeoff Performance
Unless otherwise specified, all of the information in this section is referenced to
the Takeoff page in the OPT application.
To complete a takeoff calculation, entries in the following fields are required:
• ARPT – origin airport
• RWY – planned departure runway
• COND – departure runway condition
• WIND – airport surface wind
• OAT – outside air temperature
• QNH – altimeter setting
• RTG – thrust rating
• FLAP – takeoff flap position
• A/I – anti-ice setting
• Takeoff Weight – actual takeoff weight
• CG – center of gravity value
These required entries can be made by a combination of transferring data from the
FMC and manual entry, or by manual entry alone.
The CALC soft key does not become available until all the required entries are
complete. If an invalid value was entered in a field (for example, 299.2 in the QNH
field or 430/15 in the WIND field), a system error displays either after the entry is
made, or after CALC is selected.
The following fields are also available for use when required:
• INTX – takeoff runway intersection
• ATM – assumed temperature method value/modifier
• ARPT INFO – displays airport, runway and obstacle information
• ADD ARPT – temporary creation of an airport runway that is not
contained in the database
• NOTAMS – temporary creation of a runway NOTAM that effects runway
length or obstacles and may affect performance calculations
• SHOW/HIDE KYBD – display or hide the keyboard
• SHOW LANDING – toggles between the Performance Takeoff and
Landing pages
• COPY FMC DATA – copy data from the FMC for use in performance
calculations
• SEND OUTPUT – send performance data to various locations
• SHOW FULL/ATM – toggles between the full rated takeoff performance
and the assumed temperature performance figures
• CALC – initiates the performance calculation
June 16, 2008
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