Flight Controls Flashcards
What are takeoff flap setting?
10 or 20
What are landing flaps?
25 or 30
Where is the GA detent?
20
What normally powers the LE flaps?
Pneumatics
How are the TE flaps powered?
By hydraulics
What modes are the Flap Control Units (FCU) used?
Primary and Secondary
What are the positions for leading edge flaps?
1 and 5
What is the difference between flaps 1 and 5 for the LE flaps?
1 is inboard and midspan.
5 is all three sections
What is the maximum TE flaps when in alternate mode?
flaps 25
What protections do the FCUs provide?
TE flaps asymmetry protection
Flap lodd relief in primary
How is the secondary flap mode activated?
Automatically when a failure is detected, within symmetrical flap groups
If a LE flap condition is corrected after switch to secondary mode, when will a flap group switch back to primary mode?
After the flaps have been fully retracted
If a TE condition is corrected after switch to secondary mode, when will a flap group switch back to primary mode?
If for hydraulic pressure: as soon as pressure is restored
If other than hydraulic pressure: as soon as flaps are fully retracted
How are the flaps moved in alternate mode?
With the Alternate flaps selector
What happens if a flap speed is exceeded with flaps 25 or 30?
Load relief is automatically provided only in primary
T/F: Opposite Trailing Edge Flaps are mechanically linked to assure symmetry.
True
Alternate control does not allow for what?
Asymmetry protection
What is the primary pitch control? Secondary?
Elevator
Horizontal stab
What do the shearouts do?
Allow pilots to regain control in the event of a jam.
What power elevator feel?
Hydraulic system 2 and 3
What is provides elevator feel in the event of HYD system 2 and 3 fail?
a mechanical spring
Can the trim be manually moved with the AP engaged?
Yes, by the alternate trim switches
The Elevator Feel System ________ forces to move the column at increased airspeeds.
Increase
The two pairs of manual stabilizer trim switches are located on the ___________ and the ____________.
Control wheel , control stand
Moving the appropriate STAB TRIM CUT OUT switch to the CUTOUT position does what?
Deactivates associated hydraulic power to the STCM, and the associated STAB TRIM 2 or 3 displays
What does the aileron lockout do?
Locks the outboard ailerons at high speed
What controls roll control with spoilers extended?
The spoiler mixer
How does the aileron jam override mechanism function?
By application of higher than normal force
Can you trim the ailerons when the AP is engaged?
NO
Only the ______ side spoiler indicator indicates speedbrake operation, on the Flight Control Synoptic Display.
Left
What protection does the rudder ratio changer provide?
Limiting rudder pedal displacement to protect the vertical structure
What happens when a rudder ratio changer fails?
The rudder pedal inputs remain the same as when the failure occurred
What is the risk associated with the a rudder stuck in a high speed condition? Low speed condition?
Limited range, reduced crosswind landing capabilities
Too much range, risk damage to the vertical structure
What powers the yaw damper?
Upper System 3
Lower System 2
T/F: Yaw Damper operation can be viewed on the Flight Control Synoptic display
False
T/F: If a rudder ratio changer fails, the response of the associated rudder panel to the rudder inputs remains the same as when the failure occured, regardless of the current airspeed.
True
How many spoiler panels are on each wing?
6
How many spoiler panels extend in flight?
4
What happens if one spoiler panel fails?
The symmetrical panel is shut down
What is required for the ground spoilers to deploy?
Main gear touch down and engine 1 and 3 forward thrust levers are retarded
How does the spoiler flight detent extend the spoilers?
Inboard to mid-travel
Mid to full travel
When will “>SPEEDBRAKES EXT” message display?
- above 15’ RA and below 800’ RA, or
- the flaps are set for landing, or
- two or more thrust levers are forward of the idle position
When will ground spoiler deploy when not armed?
In an RTO and Landing, when 2 or 4 TRs is raised to idle with engine 1 and 3 forward thrust levers are retarded
When will the ground spoilers retract after deployment?
If thrust lever 1 or 3 is moved out of idle or they can be manually moved
For roll augmentation, the 5 most ________ spoilers receive control inputs from the spoiler mixing system.
Outboard
