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initially to establish a thrust setting at low altitude. If performance limited (high
altitude), adjust airplane attitude to maintain airspeed while setting maximum
continuous thrust.
777-200 - 777-300ER
Note: Autothrottle can be used effectively with an engine inoperative since the
left and right autothrottle systems can be used independently while TAC
provides automatic yaw compensation.
787-8
Note: Autothrottle can be used effectively with an engine inoperative since the
left and right autothrottle systems can be used independently while the
flight control system provides automatic yaw compensation.
October 31, 2006
777/787 Flight Crew Training Manual
Maneuvers
Copyright © The Boeing Company. See title page for details.
7.6 FCT 777/787 Preliminary (TM)
High Altitude Maneuvering, “G” Buffet
Airplane buffet reached as a result of airplane maneuvering is commonly referred
to as “g” buffet. During turbulent flight conditions, it is possible to experience
high altitude “g” buffet at speeds less than MMO. In training, buffet is induced to
demonstrate the airplane's response to control inputs during flight in buffet.
Note: Stick shaker is close to initial buffet for all weights and altitudes. Stick
shaker activation may occur if the airplane is maneuvered beyond buffet.
Establish an airspeed of 0.81M to 0.84M. Induce “g” buffet by smoothly
increasing the bank angle until the buffet is noticeable. Increase the rate of descent
while increasing the bank angle to maintain airspeed. Do not exceed 30° of bank.
If buffet does not occur by 30° of bank, increase control column back pressure
until buffet occurs. When buffet is felt, relax back pressure and smoothly roll out
to straight and level. Notice that the controls are fully effective at all times.
October 31, 2006
777/787 Flight Crew Training Manual
Maneuvers
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 7.7
Rapid Descent
This section addresses basic techniques and procedures for a rapid descent. Some
routes over mountainous terrain require careful operator planning to include
carrying additional oxygen, special procedures, higher initial level off altitudes,
and emergency routes in the event a depressurization is experienced. These
requirements are normally addressed in an approved company route manual or
other document that addresses route specific depressurization procedures.
This maneuver is designed to bring the airplane down smoothly to a safe altitude,
in the minimum time, with the least possible passenger discomfort.
Note: Use of the autopilot is recommended.
If the descent is performed because of a rapid loss of cabin pressure, crewmembers
should place oxygen masks on and establish communication at the first indication
of a loss of cabin pressurization. Verify cabin pressure is uncontrollable, and if so
begin descent. If structural damage exists or is suspected, limit airspeed to current
speed or less. Avoid high maneuvering loads.
Perform the procedure deliberately and methodically. Do not be distracted from
flying the airplane. If icing conditions are entered, use anti-ice and thrust as
required.
Note: Rapid descents are normally made with the landing gear up.
Target speed MMO/VMO
Notify ATC and request
altimeter setting
Call out altitudes
Descend straight ahead or initiate
turn with HDG/TRK SEL
Adjust speed and
level off altitude
Determine new course of action
•
•
•
•
• •
•
•
LRC speed
or 300 knots
Level off at lowest safe
altitude or 10,000 feet,
whichever is higher
Speedbrakes in
down detent
Close thrust
levers and extend
speedbrakes
Announce
descent
Select lower
altitude on MCP
Select FLCH
If structural integrity is in
doubt, limit airspeed and avoid
high maneuvering loads.
October 31, 2006
777/787 Flight Crew Training Manual
Maneuvers
Copyright © The Boeing Company. See title page for details.
7.8 FCT 777/787 Preliminary (TM)
The PM checks the lowest safe altitude, notifies ATC, and obtains an altimeter
setting (QNH). Both pilots should verify that all recall items have been
accomplished and call out any items not completed. The PM calls out 2,000 feet
and 1,000 feet above the level off altitude.
Level off at the lowest safe altitude or 10,000 feet, whichever is higher. Lowest
safe altitude is the Minimum Enroute Altitude (MEA), Minimum Off Route
　
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