Flight Controls Flashcards
Which flight Controls are hydraulically powered?
Ailerons and rudder
How does the pitch trim work?
The horizontal stabilizer is electrically positioned
Name and describe the two types of tabs on the trailing edge of the elevator.
-Servo tabs are the two outer tabs, which movie at all speeds, in opposite direction of the elevator
Spring tabs are the two inner tabs, which movie only at high speeds, in opposite direction of the elevator
If the elevators or ailerons are disconnected, can they be reconnected in flight
No
What would be the indications if the elevators or ailerons are disconnected?
Yokes move independently and the amber disconnection light is illuminated
Is the artificial Feel Unit located on the right or left side of the aileron disconnection device?
The right side
Are the autopilot and stick pusher on the right or left side of the elevator disconnection device?
The left side
What happens to the rudder system above 135 KIAS?
Hydraulic system 1 shuts off to avoid rudder overboost
How can hydraulic power to the rudders be shut off manually?
Press in Shutoff buttons on the overhead panel
How can hydraulic power to the ailerons be Shutoff manually?
Press in Shutoff buttons on the overhead panel
How is the main pitch trim actuated?
Trim switches on pilots’ yokes
How is the backup trim actuated?
Backup trim switch on the center pedestal
If the captain’s and copilot’s pitch trim switches are both actuated, which takes priority?
The captain’s switch
If the main and backup pitch trims are both actuated, which takes priority?
Whichever one is actuated first
How does the roll trim work?
By repositioning the natural position of the ailerons
What does the quick disconnect button do?
Disconnects autopot
Disconnects yaw damper
Inhibits stick pusher
Inhibits all trim
What is the range of the green band on the pitch trim indicator?
4 to 8 degrees Nose up
If one half of a trim switch is held for more than _ seconds, that switch will be deactivated
Seven
What happens if a pitch trim switch is held longer than three seconds?
Trim stops and aural warning TRIM sounds
What happens if yaw or roll trim is actuated longer than three seconds?
Trim stops, no aural warning
Why must the aircraft be retrimmed after takeoff prior to reaching 160 KIAS?
At higher speeds, the trim motor will stall
If pitch trim is used while the Horizontal stabilizer actuator is stalled for a cumulative 16 seconds, that rim channel will be disabled
How are the flaps operated?
Electrically
How many flap motors drive the flaps?
Two
What is the indication if one flap motor fails?
Flaps will run more slowly, indicating one degree at a time, EICAS message FLAP LOW SPEED
