Flight Controls Flashcards
Primary flight controls
Secondary FC
Ailerons
Elevator
Rudder
THS trim Hor Stab
Flaps
Slat
Flight control laws are preset from the factory
Flight envelope protection is also provided; max and min speeds, bank angle, pitch, are automatically limited
Flight controls can be monitored in multiple places
PFD
ECAM E/WD AND SD
7 flight control computers
2 ELAC (elevator aileron)
3 SEC (Spoiler Elevator)
2 FAC (Flight Augmentation) Rudder
If ELAC 1 fails will ELAC 2 takeover automatically?
Yes
In electrical emergency configuration what remains operative
1 ELAC
1 SEC
1 FAC
If all 3 SECs fail then you loose 3 things
No speed brake and spoiler panels
No backup pitch control
Flight control laws go from Normal to Alternate
If both FACs are inop then what happens
Rudder control is now mechanical
Loose rudder trim, YD, Rudder Limiting
Both AP inop
Flight Control laws degrade to Alternate laws
Side stick priority logic?
Hold button until?
Push and hold red button you have control and it will deactivate opposite side inputs
Green Captain light on glare shield goes out or after 40 sec whichever happens 1st.
Side stick can disengage AP if
Enough force is applied.
THS IS MOVED BY A
Jackscrew
Bracket over spoilers on F/CTL page mean
Assist in roll control
Rudder has all 3______going to it.
Hyd systems
Yaw damping is automatic
With AP off you can trim the rudder.
Speed brakes are 2-4 spoilers and are depicted by a bracket on the F/CTL page
A320 Speed brakes will only extend to _______ with AP on. If AP is turned off then they will
Extend to _______
A319 and A321 will extend to handle position regardless of AP on or off.
1/2
Where ever the handle is selected.
Speed brakes can be used with flaps selected up to _______.
Speed brakes will also retract with _______thrust or ________ angles of attack
Position 3.
TOGA / HIGH
Deployment of ground spoilers aircraft must
Both mains on ground
Wheel speed greater than 72
Thrust lever idle
I’d Speed brake is not armed at least one Thrust lever must be in Rev while other is at idle or Rev.
To reduce possibility of hydroplaning. If armed the ground spoilers will deploy if
1 strut is compressed
1 thrust lever is in reverse
SFCC is?
Do not extend Slats/Flaps above?
Slats and Flaps Control Computer
200’
If 1 SFCC is broken the other can retracted or extend but at ________speed
Half
Flaps extended and aircraft is 210 or above
Flaps retract however slats stay extended
Slat Alpha speed lock explain
Prevents slats from retracting if you select them up if speed is too low or AOA gets to high
Flight Control normal law is not affected when only 1 system failure happens.
What would make normal move to alternate law
Triple SEC FAULT
Dual ELAC / FAC / ADR / IR / or dual Hyd faults with exception of Hyd B + Y sys low pressure
Alternate law becomes available with multiple system failures.
Direct law is in affect with more significant control failures and may be in affect when gear is put down.
Mechanical flight control back ups are as follows
Manual pitch
Rudder pedals
Engine thrust
You only want to do this until a higher law can be restored
Abnormal attitude law provides
Recovery from an unusual attitude
Laws are displayed on pilots PFD by______ equal signs
Green
Automatic pitch trim is avaiable when bank is ______or less
33 degrees
Normal law keeps you from exceeding________G’s
And _______G’s with any flaps extended
2.5- -1
2.0- 0
Pitch attitude protection is no greater than ________in normal law
30 degrees up or
15 degrees down
Normal law high speed protection is represented by _______
Green equal sign. It does not keep aircraft from overspeeding
Alternate law has _________that replace the green equal
Signs
Yellow X’s
Alternate law pitch control is _________as normal law. However you will not have_______________
The same
Ground and landing modes are gone.
AlternTe law pitch protections can be _________
Exceeded
Alternate law you can roll beyond____________
67 degrees
Alternate law coordinated turn is ________
Lost
In direct law your commands are sent directly to the control
Surfaces via ________
Flight control computers
In alternate law when landing it will switch to___________
Law to put conventional feel in controls
Direct
In direct law the PFD will display the yellow x’s but it will additionally have__________
at the top.
USE MAN PITCH TRIM in Yellow
You will have Red FD / SPD LIM/ MAN PITCH TRIM ONLY
If in mechanical back up control
