Flight Controls 2

Question 1

How many flight control computers are there?

Answer 1

7.
2 FACs
2 ELACs
3 SECs

Question 2

What are the four modes of operation?

Answer 2

Ground mode, flight mode, flare mode and rotation mode (NEO only)

Question 3

In flight mode, what does the sidestick command?

Answer 3

In pitch, load factor demand, and in roll a roll rate demand

Question 4

What are the main protections in normal law?

Answer 4

Load factor
Pitch attitude
Bank angle
High speed
High AoA

Question 5

What are the load factor limitations in normal law?

Answer 5

Clean -1g to +2.5g
Configured 0g to +2g

Question 6

What are the pitch attitude limitations in normal law?

Answer 6

Nose up 30 degrees (CONF 0-3) and 25 degrees CONF FULL. Progressively reduced by 5 degrees at low speeds.
Nose down 15 degrees in all cases

Question 7

What is the maximum bank angle for auto pitch trim and bank hold?

Answer 7

33 degrees

Question 8

At what angle of bank do the FDs reappear after overbanking?

Answer 8

40 degrees

Question 9

When are overspeed protections active?

Answer 9

VMO +6
MMO +0.01

Max 40 degrees AOB

If sidestick released, bank angle returns to 0

Question 10

In high speed, when is nose down authority zero?

Answer 10

VMO +16
MMO +0.04

Question 11

What does the low speed regime in normal law provide?

Answer 11

Low energy aural alert “SPEED”
Alpha floor protection

Neither of these are flight control protections

Question 12

With stick neutral, what will speed decay until?

Answer 12

ValphaProt

Question 13

What is an easy way to identify if you are in alternate law?

Answer 13

Amber crosses

Question 14

In alternate law, what does the sidestick command?

Answer 14

In pitch it is normal - Load factor demand with auto pitch trim
In roll, it is a direct relationship. Maximum is 30 degrees per second clean or 25 degrees per second with flaps

Question 15

If ECAM states F/CTL ALTN LAW (PROT LOST), are protections lost?

Answer 15

Load factor protection is retained. High and low speed stabilities may be retained, but ECAM doesnt tell us

Question 16

What replaces the low speed alpha indications?

Answer 16

VSW

Question 17

In alternate law, and if available, at what speed is low speed stability active?

Answer 17

5-10kt above VSW

Question 18

In alternate law, is high speed stability available?

Answer 18

It might be, depending on the situation

Question 19

Will AP disconnect in alternate law for high speed or bank?

Answer 19

Yes for both. Speed if above VMO/MMO, bank if above 45 degrees

Question 20

How can you tell you are in direct law?

Answer 20

USE MAN PITCH TRIM in amber on the PFD

Question 21

In direct law, what config is needed for landing and what speed adjustment if any?

Answer 21

CONF 3 and VREF + 10kt for landing unless otherwise specified

Question 22

Do we keep protections and stabilities in direct law?

Answer 22

No, but overspeed and stall warnings still remain available

Question 23

How many flaps per wing?

Answer 23

2

Question 24

What are SFCCs and how do they work?

Answer 24

Slat Flap Control Computers. They command two Power Control Units (PCUs) which operate the slats and flaps.

Question 25

What happens if an SFCC channel is lost?

Answer 25

Slats and flaps operate at half speed

Question 26

When moving flap lever from 0 to 1, what causes aircraft to go to config 1+F?

Answer 26

Speed less than or equal to 100kts

Question 27

Which spoilers deploy for ground spoilers?

Answer 27

All 5

Question 28

Which spoilers deploy for roll?

Answer 28

Outer 4

Question 29

Do you get full speed brake deflection with AP engaged?

Answer 29

Yes, in an A319 or A321. In an A320 only half speed brake deflection is available

Question 30

When do speed brakes autoretract?

Answer 30

Config full (or CONF 3 in A321)