Flight Controls Panel

Question 1

FLIGHT CONTROLS PANEL

Q:​ What does​ ELAC stand for?​ ​

Answer 1

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

Elevator Aileron​ Computer

Question 2

FLIGHT CONTROLS PANEL

Q:​ How many​ ELACs are​ installed? ​

Answer 2

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

2

Question 3

FLIGHT CONTROLS PANEL

Q:​ What are​ the​ functions​ of​ the​ ELAC?​ ​

Answer 3

(FOM VOL.​ III-DSC-27-20-30)​ ​

• 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

FLIGHT CONTROLS PANEL

Q:​ Under​ Normal​ Law,​ what does ELAC 1 control​?

Answer 4

Ref: (FOM VOL. III-DSC-27-10-20,​ FFT​ N216FR QRH - OPS P)​ ​

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

Question 5

FLIGHT CONTROLS PANEL

Q:​ What does​ SEC stand for?​ ​

Answer 5

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

Spoiler Elevator Computer

Question 6

FLIGHT CONTROLS PANEL

Q:​ How many​ SECs are​ installed? ​

Answer 6

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

3​

Question 7

FLIGHT CONTROLS PANEL

Q:​ What functions​ are​ performed by​ the​ SECs?​ ​

Answer 7

Ref: (FOM VOL. III-DSC-27-20-30)​ ​

• 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

FLIGHT CONTROLS PANEL

Q:​ Under​ Normal​ Law,​ what do the​ 3​ SECs control​ ​

Answer 8

Ref: (FOM VOL.​ III-DSC-27-20-30,​ FFT​ N216FR QRH - OPS P)​ ​

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

Question 9

FLIGHT CONTROLS PANEL

Q:​ What is​ the​ sole purpose​ of​ SEC 3​ in Normal​ Law?​ ​

Answer 9

Ref: (FOM VOL. III-DSC-27-10-20)​ ​

Spoiler control (Spoilers​ 1​ & 2 only)

Question 10

FLIGHT CONTROLS PANEL

Q:​ What is​ the​ definition of​ FAC?​ ​

Answer 10

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

Flight Augmentation Computer

Question 11

FLIGHT CONTROLS PANEL

Q:​ How many​ FACs​ are installed? ​

Answer 11

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

2​

Question 12

FLIGHT CONTROLS PANEL

Q:​ What are​ the​ functions​ of​ the​ FACs?​ ​

Answer 12

Ref: (FOM VOL. III-DSC-27-20-30)​ ​

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

Question 13

FLIGHT CONTROLS PANEL

Q:​ Under​ Normal​ Law,​ what do the​ FACs​ provide​?

Answer 13

“YAWL”​ ​

Ref: (FOM VOL. III-DSC-22-40-10)​ ​

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

FLIGHT CONTROLS PANEL

Q: Is​ full​ rudder deflection​ available during​ all flight regimes?​ ​

Answer 14

Ref: (FOM VOL. III-DSC-27-10-20)​ ​

No. Rudder deflection is limited as​ a function​ of airspeed​.

Question 15

FLIGHT CONTROLS PANEL

Q:​ How are​ the​ flight control surfaces​ controlled and​ actuated? ​

Answer 15

Ref: (FOM VOL. III-DSC-27-10-10)​ ​

All​ surfaces​ are controlled​ electrically and​ actuated hydraulically

Question 16

FLIGHT CONTROLS PANEL

Q:​ When is automatic pitch trim available?​ ​

Answer 16

Ref: (FOM VOL. III-DSC-27-20-10-20) ​

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

Question 17

FLIGHT CONTROLS PANEL

Q:​ How is roll​ control normally achieved? ​

Answer 17

Ref: (FOM VOL. III-DSC-27-10-20)​ ​

1 aileron and 4 spoilers on each wing

Question 18

FLIGHT CONTROLS PANEL

Q:​ If​ both FACs fail, is maximum rudder deflection available?​ ​

Answer 18

Ref: (FOM VOL. III-DSC-27-10-20)​ ​

Yes,​ after slat extension​.