737 Flight Crew Operations Manual
Performance Inflight
Text
737-8/LEAP-1B27
FAA
CATB
MN-FLT-OH-201
PI.18.7
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Pitch attitude and power setting are shown in bold type to emphasize pilot
action. Altitude and/or vertical speed indications may also be unreliable.
All Engines
Long Range Cruise Maximum Operating Altitude
These tables provide the maximum operating altitude in the same manner
as the FMC. Maximum altitudes are shown for a given cruise weight and
maneuver capability. Note that these tables consider both thrust and buffet
limits, providing the more limiting of the two. Any data that is thrust
limited is denoted by an asterisk and represents only a thrust limited
condition in level flight with 100 ft/min residual rate of climb.
For FAA operators adhering to EASA standards, refer to the data for buffet
limits corresponding to a maneuver margin of 1.3g (39° bank).
Flying above these altitudes with sustained banks in excess of
approximately 13° may cause the airplane to lose speed and/or altitude.
The altitudes shown in the table are limited to the maximum certified
altitude of 41000 ft.
Long Range Cruise Control
This table provides target %N1, Long Range Cruise Mach number, IAS and
standard day fuel flow per engine for the airplane weight and pressure
altitude. As indicated by the shaded area, at optimum altitude, .79 Mach
approximates the Long Range Cruise Mach schedule.
APU Operation During Flight
For APU operation during flight, increase fuel flow according to the table
in the Engine Inoperative text section.
Long Range Cruise Enroute Fuel and Time
Long Range Cruise Enroute Fuel and Time tables are provided to
determine remaining time and fuel required to destination. The data is
based on Long Range Cruise and .78/280/250 descent. Tables are presented
for low altitudes for shorter trip distances and high altitudes for longer trip
distances.
October 26, 2021
