737 MAX Flight Crew Operations Manual
Performance Inflight
Text
737-8/LEAP-1B28
FAA
CATB
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
PI.38.4
MN-FLT-OH-201
4. Enter the V1(MCG) Limit Weight table (Table 2) with the adjusted field
length and pressure altitude to obtain the slush/standing water limit
weight with respect to minimum field length required for V1(MCG)
speed.
5. The maximum allowable takeoff weight in slush/standing water is the
lesser of the limit weights found in steps 2 and 4.
Takeoff speed determination:
1. Determine takeoff speeds V1, VR and V2 for actual brake release weight
using the Dry Runway Takeoff Speeds tables in this section.
2. If V1(MCG) limited, set V1=V1(MCG). If not limited by V1(MCG)
considerations, enter the V1 Adjustment table (Table 3) with actual brake
release weight to determine the V1 reduction to apply to V1 speed. If the
adjusted V1 is less than V1(MCG), set V1=V1(MCG).
Dry Snow Runway Takeoff
In addition to slush/standing water, the data are provided for dry snow
covered runways. Takeoff in dry snow depths greater than 4.0 inches (100
mm) is not recommended. The tables provided are used in the same manner
as the Slush/Standing Water Takeoff tables.
Wet Snow Runway Takeoff
In addition to slush/standing water and dry snow, data are provided for wet
snow covered runways. The tables provided are used in the same manner
as the Slush/Standing Water Takeoff tables.
Slippery Runway Takeoff
Airplane braking action is reported as good, medium or poor, depending on
existing runway conditions. If braking action is reported as good,
conditions should not be expected to be as good as on clean, dry runways.
The value “good” is comparative and is intended to mean that airplanes
should not experience braking or directional control difficulties when
stopping. The performance level of good is the same as used by the FAA
and EASA to define wet runway rejected takeoff performance. A braking
action of good to medium (interpolation between good and medium) is
representative of a runway covered with compacted snow. Similarly, poor
braking action is representative of a runway covered with ice. Performance
is based on reversers operating and a 15 ft screen height at the end of the
runway. The tables provided are used in the same manner as the
Slush/Standing Water tables.
March 1, 2021
