FCOM: 27 - Flight Control System

Question 1

What protections are available in normal law?

Question 2

Alternate law, reduced protection: what are the main differences from normal law?

Question 3

Alternate law without protection. What is the main difference from alternate law with reduced protection?

Question 4

What warnings are available in direct law?

Question 5

In direct law, which spoilers are used for roll control?

Question 6

What is alpha lock?

Question 7

At what speed does auto flap retract take place?

Question 8

If you go around from Config 2 or 3, and select Config 1, what slat/flap position results?

Question 9

Describe what happens as you move the sidestick rearwards (with reference to the characteristic speeds and protections in normal law) if the thrust levers are at idle.

Question 10

What protection has priority over all other protections?

Question 11

When high speed protection is activated, how does this affect the aircraft’s stability in roll?

Question 12

Describe how high speed protection works with regard to sidestick position.

Question 13

What modes are available in normal law?

Question 14

Describe bank angle protection

Question 15

Up to what bank angle is automatic turn coordination available?

Question 16

If doing a steep turn, is it necessary to hold a back pressure on the sidestick?

Question 17

What is the normal range of rudder trim?

And why?

Question 18

What indication on the PFD is missing in alternate law?

Question 19

What is abnormal attitude law?

Question 20

How does the SRS work?
(engagement conditions)

Question 21

When does SRS engage on take off?
What speeds are commanded?

Question 22

How many SRS modes are there?

Question 23

How does the SRS work on go around?

Question 24

Which hydraulic systems do the flaps use?

Question 25

Which hydraulic systems do the slats use?

Question 26

Outboard ailerons use which hydraulic system?
Inboard ailerons use which hydraulic system?

Question 27

Which hydraulic systems are used by which spoilers?

Question 28

Which hydraulic system does the THS use?

Question 29

Which hydraulic system do the elevators use?

Question 30

Which hydraulic system does the rudder use?

Question 31

What is the usage priority of the SFCCs for both the slats and the flaps?

Question 32

How is the aircraft controlled in pitch?

Question 33

What is the maximum elevator deflection and the maximum THS deflection?

Question 34

In normal configuration, how are commands to the elevator translated into movement?

Question 35

How is mechanical control exercised in pitch?

Question 36

Discuss active, damping and centring modes for the elevator.

Question 37

How is the stabiliser moved?

Question 38

What are the 5 conditions that will inhibit speedbrake extension?

Question 39

Is the flap overspeed warning based on flap position or lever position?

Question 40

What is the difference between Alpha Floor, Alpha Prot and Alpha Lock?

Question 41

What is the purpose of mechanical backup?

Question 42

How can you tell if the aircraft is in Mechanical backup?

Question 43

What is LAF?

Question 44

How do the FACs receive information about speedbrake position?

Question 45

What is the maximum bank angle when α protection is in force?

Question 46

What’s the maximum bank angle when high speed protection is in force?

Question 47

When in α prot what happens when you release the sidestick?

Question 48

What is the max pitch available in clean configuration? and config full?

Question 49

What is the max g load in clean and other configs?

Question 50

Once out of the α-floor condition, what thrust mode would you expect to see and how would you recover?

Question 51

What is Vls and what is its relation to the stall speed?

Question 52

Can high speed protection be overridden?

Question 53

Draw the speed tape in alternate law and in normal law.

Question 54

When might you see “USE MAN PITCH TRIM” and when might you see “MAN PITCH TRIM ONLY”?

Question 55

What is α Lock and when might you see it?

Question 56

Explain high and low speed stability in alternate law.

Question 57

What protections do we have in direct law?

Question 58

What control surfaces have a mechanical link to the flight deck?

Question 59

What is the purpose of aileron droop and how do you know if your aircraft is fitted with it?

Question 60

In pitch, how long does it take to transition from ground to flight mode?

Question 61

What is ground mode?

Question 62

What is flare mode?

Question 63

What computer controls the characteristic speeds displayed on the PFD?

Question 64

What is the low energy alert and when would it occur?

Question 65

Explain the purpose of the β target and when you might see it?

Question 66

What does it mean when the red arrow is displayed in front of you?

Question 67

When do you see the sidestick indication on the PFD, and when does it disappear?

Question 68

Explain the movement of the flaps and slats between lever position 2 and position 3.

Question 69

What is the difference between selecting flaps 1 in the air and on the ground?

Question 70

Vfe & Vfe next are based on what?

Question 71

Overspeed warnings, and Vls are based on what?

Question 72

What protections may come into play when operating at heavy weights?

Question 73

With a dual channel failure or loss of flaps and slats why is it still necessary to select CONF 1?

Question 74

In the flap and slats jammed failure, why is it recommended to maintain Vapp or Vls, (whichever higher)?

Question 75

Which spoilers act as speed brakes and which act as roll spoilers?

Question 76

At what speed will the ground spoilers deploy?

Question 77

Explain phased lift dumping and its purpose.

Question 78

What is the effect on Vls when operating the speedbrakes?

Question 79

What is the effect of the speedbrakes when operating at high mach numbers?

Question 80

Approximately how long does it take for the speed brakes to retract from full?