曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
and V2 to be reduced, which in turn reduces the field length required for takeoff.
Reduction in field length required can also permit an increased field length limited
weight. In most instances this reduction in nose up trim also results in a decrease
in drag which improves the airplane’s climb capability.
777-200 - 777-300ER
Note: The FMC calculated takeoff speeds and QRH takeoff speeds are not valid
for operations using alternate forward CG. Takeoff speeds must be
calculated using alternate forward CG performance data normally
provided by dispatch or flight operations.
787-8
Note: The QRH takeoff speeds are not valid for operations using alternate
forward CG. Takeoff speeds must be calculated using alternate forward CG
performance data normally provided by dispatch or flight operations.
October 31, 2006
777/787 Flight Crew Training Manual
Takeoff and Initial Climb
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 3.15
Crosswind Takeoff
The crosswind guidelines shown below were derived through flight test data,
engineering analysis, and flight simulator evaluations.
Note: Engine stress and possible engine surge can occur with a strong crosswind
or tailwind component if takeoff thrust is set before brake release.
Therefore, the rolling takeoff procedure is strongly advised when
crosswinds exceed 20 knots or tailwinds exceed 10 knots.
Takeoff Crosswind Guidelines
Crosswind guidelines are not considered limitations. Crosswind guidelines are
provided to assist operators in establishing their own crosswind policies.
Takeoff crosswind guidelines increase with higher gross weights and more
forward CGs and assume an engine out RTO and proper pilot technique. On
slippery runways, crosswind guidelines are a function of runway surface condition
and airplane loading. When using the following table:
• interpolation is permitted for intermediate gross weights and CG
positions.
• for low gross weights where the takeoff aft CG limit is forward of 39%
MAC and the airplane CG is aft of 35% MAC, interpolate using
crosswinds from the columns labeled “Takeoff Aft Limit” and “35%
MAC”.
October 31, 2006
777/787 Flight Crew Training Manual
Takeoff and Initial Climb
Copyright © The Boeing Company. See title page for details.
3.16 FCT 777/787 Preliminary (TM)
777-200 - 777-300ER
787-8
*Winds measured at 33 feet (10 m) tower height and apply for runways 148 feet
(45m) or greater in width.
** Takeoff on untreated ice or snow should only be attempted when no melting is
present.
TO Weight
1,000 lbs/kgs
Runway Condition Center of Gravity
(% MAC)
30% MAC
or less
35%
MAC
39%
MAC
44%
MAC
550 lbs / 250 kgs
and above
Dry
Wet
Slush/Standing Water
Snow - No Melting **
Ice - No Melting **
40 K
40 K
35 K
35 K
15 K
40 K
40 K
31 K
29 K
15 K
40 K
34 K
27 K
24 K
15 K
29 K
25 K
21 K
18 K
10 K
30% MAC
or less
35%
MAC
39%
MAC
TO Aft
Limit
470 lbs / 215 kgs
Dry
Wet
Slush/Standing Water
Snow - No Melting **
Ice - No Melting **
40 K
40 K
31 K
30 K
15 K
40 K
34 K
27 K
25 K
15 K
33 K
29 K
23 K
21 K
15 K
24 K
21 K
18 K
16 K
10 K
30% MAC
or less
35%
MAC
39%
MAC
TO Aft
Limit
390 lbs / 180 kgs
and below
Dry
Wet
Slush/Standing Water
Snow - No Melting **
Ice - No Melting **
40 K
35 K
28 K
27 K
15 K
33 K
29 K
24 K
22 K
15 K
28 K
24 K
20 K
19 K
15 K
22 K
20 K
17 K
16 K
10 K
Runway Condition Crosswind Component
(knots) *
Dry 40
Wet 25
Standing Water/Slush 15
Snow - No Melting ** 15
Ice - No Melting ** 15
October 31, 2006
777/787 Flight Crew Training Manual
Takeoff and Initial Climb
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 3.17
Directional Control
Initial runway alignment and smooth symmetrical thrust application result in good
crosswind control capability during takeoff. Light forward pressure on the control
column during the initial phase of takeoff roll (below approximately 80 knots)
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
787机组训练手册Flight Crew Training Manual 787(37)
