787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Performance Inflight Chapter PI
Text Section 18
787-8/
FAA
Category A Brakes
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC PI.18.1
PI.18 Performance Inflight-Text
TextText
Introduction
This chapter contains information to supplement performance data from
the Flight Management Computer. In addition, sufficient inflight data is
provided to complete a flight with the FMC inoperative. In the event of
conflict between data presented in this chapter and that contained in the
Approved Flight Manual, the Flight Manual shall always take precedence.
General
Takeoff Speeds
The speeds presented in the Takeoff Speeds table can be used for all
performance conditions except where adjustments must be made to V1 for
clearway, stopway, brake deactivation, improved climb, contaminated
runway situations, unbalanced for brake energy or obstacle clearance with
unbalanced V1. These speeds may be used for weights less than or equal
to the performance limited weight.
Normal takeoff speeds, V1, VR, and V2 are read from the dry or wet table
by entering with takeoff flap setting and brake release weight. Use the
tables provided to correct takeoff speeds for altitude and actual
temperature or assumed temperature for reduced thrust takeoffs. Slope and
wind corrections to V1 are obtained by entering the Slope and Wind V1
Adjustment Table.
Clearway and Stopway V1 Adjustments
Takeoff speed corrections are to be applied to V1 when using takeoff
weights based on the use of clearway and stopway.
Adjust V1 by the amount shown in the table. The adjusted V1 must not
exceed VR. If V1 is greater than VR, VR may be increased to equal V1.
The resultant V2 will be increased by the same amount that VR was
increased.
Maximum allowable clearway limits are provided for guidance when more
precise data is not available.
Stabilizer Trim Setting
To find takeoff stabilizer trim setting, enter Stabilizer Trim Setting table
with anticipated brake release weight and center of gravity (C.G. % MAC)
and read required stabilizer trim units.
February 15, 2010
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