The primary flight controls consist of rudder, ailerons and ______.
Elevators.
Why are mechanical gates installed on the flap selector unit?
To prevent inadvertent flap lever movement beyond F1 and F15 during G/A.
If the spoilers become jammed:
The captain’s control wheel operates the ailerons.
In the event of hydraulic Systems A & B fail, ailerons, elevators, and rudder can be operated with the Standby system.
False.
Roll control is provided by the ailerons, assisted by the _____.
Flight spoilers.
During a normal landing, flight spoilers & ground spoilers will always extend simultaneously.
False.
Elevator Feel provides simulated aero forces using airspeed from elevator pitot & stabilizer position.
True.
To operate the Feel system, the Elevator Feel Computer uses:
Either hydraulics system A or B pressure (whichever is higher)
A Mach Trim system provides speed stability at the higher Mach numbers.Mach trim is automatically accomplished above:
Mach 0.615.
Mach Trim system corrects for Mach tuck by moving stabilizer up.
False.
Concerning Mach Trim operation, FCCs use Mach information from the ADC / ADIRU, to compute a Mach trim actuator position which repositions the elevator feel & centering unit, which adjusts the control column neutral position (column will not move).
True.
In addition to Hydraulic System A & B, the rudder can also be powered by the Standby Hydraulic System through the:
Standby Rudder Power Control Unit.
The Power Transfer Unit provides an alternate source of power for the Autoslat System if:
A loss of pressure from the Hydraulic System B engine pump is sensed.
The trailing edge flaps are at 15 units. The correct indication on the aft overhead panel for the leading edge devices is:
All LE devices FULL EXT lights illuminated.
During flight with both hydraulic systems A & B inoperative:
Trim is available for the stabilizer and rudder only. Aileron trim is inoperative with the
autopilots disengaged.
The elevator transfer mechanism allows:
The control column to be physically separated in the event of an elevator jam.
Autopilot trim & main stabilizer trim use separate motors.
False.
What is the number of flight spoilers located on each wing?
4
The Flap/Slat Electronics Unit (FSEU) provides:
LE skew detection for slats 2 through 7 except during autoslat operation.
TE asymetry protection by removing hydraulic pressure to the TE flaps if an asymetry is detected.
Uncommanded motion protection for LE devices and TE flaps.
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Loss of Hydraulic System B pressure does not cause illumination of the amber YAW DAMPER light or yaw damper disengagement.
True.
Leading Edge devices are normally operated by ______.
Hydraulic System B
The amber LE FLAPS TRANSIT light :
Is inhibited during Autoslat operation inflight.
Elevator system feel is provided by the elevator feel computer. This computer receives inputs of:
Airspeed & stabilzer position.