737 Flight Crew Operations Manual
Performance Inflight
Text
737-800WSFP1/CFM56-7B26
FAA
Category C/N Brakes
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PI.17.10 D6-27370-866-EGP
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. Notes providing
adjustments for wind are included below the table.
To determine the energy per brake absorbed during landing, enter the
appropriate Adjusted Brake Energy Per Brake 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 appropriate (steel or carbon
brakes) final table by entering with the adjusted brake energy per brake.
Times are provided for ground cooling and inflight gear down cooling.
Brake Temperature Monitor System (BTMS) indications are also shown. If
brake cooling is determined from the BTMS, use the hottest brake
indication 10 to 15 minutes after the airplane has come to a complete stop,
or inflight with gear retracted to determine recommended cooling
schedule.
Engine Inoperative
Initial Max Continuous %N1
The Initial Max Continuous %N1 setting for use following an engine
failure is shown. The table is based on the typical all engine cruise speed
of .79M to provide a target %N1 setting at the start of driftdown. Once
driftdown is established, the Max Continuous %N1 table should be used to
determine %N1 for the given conditions.
Max Continuous %N1
Power setting is based on one engine operating with one A/C pack
operating and all anti-ice bleeds off. Enter the table with pressure altitude,
TAT, and IAS or Mach to read %N1.
September 15, 2016
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