787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Performance Inflight
Tex t
787-8/
FAA
Category A Brakes
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC PI.18.7
Non-Normal Configuration Landing Distance
Advisory information is provided to support non-normal configurations
that affect landing performance of the airplane. Landing distances and
adjustments are provided for dry runways and runways with good,
medium, and poor reported braking action.
Enter the table with the applicable non-normal configuration and read the
normal approach speed. The reference landing distance is a reference
distance from 50 ft above the threshold to stop based on a reference landing
weight and speed at sea level, zero wind, and zero slope. Subsequent
columns provide corrections for off-reference landing weight, altitude,
wind, slope, temperature, speed and reverser conditions. Each corrections
is independently added to the reference landing distance. The Reference
landing distance includes the effects of max manual braking and reverse
thrust.
For an engine inoperative landing, check the rate of climb capability
shown in Gear Down Landing Rate of Climb Available tables to ensure
adequate climb performance.
Recommended Brake Cooling Schedule
Advisory information is provided to assist in avoiding problems associated
with hot brakes. For normal operation, most landings are at weights below
the AFM quick turnaround limit weight.
Use of the recommended cooling schedule will help avoid brake overheat
and fuse plug problems that could result from repeated landings at short
time intervals or a rejected takeoff.
Enter the Recommended Brake Cooling Schedule table with the airplane
weight and brakes on speed, adjusted for wind, at the appropriate
temperature and altitude condition. Instructions for applying wind
adjustments are included below the table. Linear interpolation may be used
to obtain intermediate values. The resulting number is the reference brake
energy per brake in millions of foot-pounds, and represents the amount of
energy absorbed by each brake during a rejected takeoff.
To determine the energy per brake absorbed during landing, enter the
appropriate Event Adjusted Brake Energy Table (No Reverse Thrust or 2
Engine Reverse) with the reference brake energy per brake and the type of
braking used during landing (Max Manual, Max Auto, or Autobrake). The
resulting number is the adjusted brake energy per brake and represents the
energy absorbed in each brake during the landing. The recommended
cooling time is found in the final table by entering with the adjusted brake
energy per brake. Times are provided for ground cooling and inflight gear
down cooling.
February 15, 2010
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