Flight Controls Flashcards
How many elevators does the aircraft have?
2
What flight computers control the elevators & THS and what is the sequence of redundancy?
ELAC 2 controls elevators & THS
ELAC 1 takes over followed by SEC 2&1
Which hydraulic sources power the left and right elevators and what redundancy is there?
Left elevator - Green system
Right elevator - Yellow system
Blue system acts as backup to both
When will the backup hydraulic system become active with regards to elevator control?
If the primary hydraulic system fails or following a failure of ELAC 2
What hydraulic systems power the THS?
And which flight control computers control the hydraulic actuators and how many motors are there?
Green and Yellow system power the THS
ELAC 2 power motor 1, if this fails
ELAC 1 powers motor 2, if this then fails
SEC 2 powers motor 3 and then
SEC 1 powers motor 2
Can the THS be moved manually?
Yes, manual movement has priority
Explain a servojack being in:
Active mode
Damping mode
Cantered mode
Active - jack position is electrically controlled
Damping - jack follows surface movement
Centering - jack is hydraulically retained in neutral position
How many ailerons does the aircraft have? Which spoilers are used for roll control along with the ailerons?
2 (one on each wing)
Spoilers 2-5 on each wing help with roll
Which hydraulic systems actuate the ailerons?
The green and blue hydraulic systems.
With green being the primary.
Which flight computers control the ailerons & what is the redundancy?
ELAC 1 controls the ailerons electrically
ELAC 2 takes over if ELAC 1 fails
If both ELAC 1 & 2 fail the SECs will provide roll control via the spoilers
Which spoilers make up the ground spoilers?
All 5 on each side, 1-5
Which spoilers make up the speedbrake?
2, 3, 4
Which spoilers make up roll control?
2-5
Which flight computers control which spoilers?
SECs
21133 FUSELAGE 33112
If a spoiler is deployed and the associated SEC fails, what happens to the spoiler?
The spoiler will retract