Flight Control Panel

Question 1

What does ELAC stand for?

Answer 1

Elevator Aileron Computer

Question 2

How many ELACs are installed?

Answer 2

2

Question 3

What are the functions of the ELAC?

Answer 3

Pitch All, Abnormal altitude, Roll normal and direct, Aileron droop, Auto pilot acquisition, Activates and protect.
Normal  elevator  and  stabilizer  control 
Normal  aileron  control 
Normal  pitch  and  roll 
Alternate  pitch 
Direct  pitch  and  roll 
Abnormal  attitude 
Aileron  droop 
Acquisition  of  autopilot  orders

Question 4

Under Normal Law, what does ELAC 1 control

Answer 4

Primary - Aileron control (roll)
Standby - Elevator / Trimmable Horizontal Stabilizer control (backs up ELAC 2)

Question 5

What does SEC stand for?

Answer 5

Spoiler Elevator Computer

Question 6

How many SECs are installed?

Answer 6

3

Question 7

What functions are performed by the SECs?

Answer 7

Pitch alternate and direct, Abnormal attitude, Roll normal and direct, Speed brakes, and Spoilers.
Normal roll (by controlling the spoilers)
Speed brakes and ground spoilers (SEC 1 & 3 only)
Alternate pitch (SEC 1 & 2 only)
Direct pitch (SEC 1 & 2)
Direct roll
Abnormal attitude

Question 8

Under Normal Law, what do the 3 SECs control

Answer 8

Primary – Spoiler control (roll)
Standby – Elevator / Stabilizer control (SEC 1 & 2 back up the ELACs)

Question 9

What is the sole purpose of SEC 3 in Normal Law

Answer 9

Spoiler control (Spoilers 1 & 2 only)

Question 10

What is the definition of FAC?

Answer 10

Flight Augmentation Computer

Question 11

How many FACs are installed?

Answer 11

2

Question 12

What are the functions of the FACs?

Answer 12

Normal roll (turn coordination and yaw damping)
Rudder trim
Rudder travel limit
Alternate yaw

Question 13

Under Normal Law, what do the FACs provide (YAWL)?

Answer 13

Y - Yaw Control – Damping and turn coordination, rudder limiter, rudder trim)
A - Airspeed Protection Computation (Alpha Protection, high / low limits, maneuvering speed, PFD speed scale)
W - Windshear protection (Reactive and not Predictive)
L - Low Energy Warning Protection (“SPEED, SPEED, SPEED”)

Question 14

Is full rudder deflection available during all flight regimes?

Answer 14

No. Rudder deflection is limited as a function of airspeed

Question 15

How are the flight control surfaces controlled and actuated?

Answer 15

All surfaces are controlled electrically and actuated hydraulically

Question 16

When is automatic pitch trim available?

Answer 16

In flight under Normal Law with bank angle less than 33˚ with or without autopilot engaged

Question 17

How is roll control normally achieved?

Answer 17

1 aileron and 4 spoilers on each wing

Question 18

If both FACs fail, is maximum rudder deflection available?

Answer 18

Yes, after slat extension