A320 Lounge Flight Controls 3

Question 1

CEO aircraft in normal law.

What is sidestick relationship in pitch and roll on the ground?

Answer 1

Direct in pitch
Direct in roll

Question 2

NEO aircraft in normal law.

What is sidestick relationship in pitch on rotation?

Answer 2

Pitch rate in pitch

Question 3

CEO aircraft in normal law.

What is sidestick relationship in pitch and roll in the air?

Answer 3

Load factor in pitch
Roll rate (max 15 degrees per second in normal law)

Question 4

CEO aircraft in normal law.

What is sidestick relationship in pitch in the flare?

What happens to the THS

Answer 4

Direct in pitch - trimmed to minus 2 degrees nose down over 8 second period

THS is frozen

Question 5

CEO aircraft in alternate law.

What is sidestick relationship in pitch and roll on the ground?

Answer 5

Direct in pitch
Direct in roll

Question 6

NEO aircraft in alternate law.

What is sidestick relationship in pitch and roll on rotation?

Answer 6

N/A - wouldn’t take off in alternate law

Question 7

CEO aircraft in alternate law.

What is sidestick relationship in pitch and roll in flight?

Answer 7

Load factor in pitch
Direct in roll

Question 8

What is approximate maximum roll rate in normal law?

Answer 8

15 degrees per second

Question 9

What is approximate maximum roll rate in alternate law?

Answer 9

30 degrees per second

Question 10

What does direct relationship mean in terms of sidestick inputs?

Answer 10

Half deflection is equal to half command. Full deflection is full etc

Question 11

CEO aircraft in alternate law.

What is sidestick relationship in pitch in flare?

Answer 11

Use man pitch trim

In pitch, direct. Direct in roll

Question 12

When does ground mode change to flight mode?

Answer 12

When aircraft is above 8 degrees nose up, over half a second, it changes from direct relationship in roll to a roll rate

In pitch, from 8 degrees nose up, it blends over 5 seconds, from ground mode into flight mode

This changes the sidestick so that the pitch attitude is eventually 15 degrees nose up approximately, but will require zero sidestick to maintain this

Question 13

When does flight mode change to flare mode?

Answer 13

50ft RA over 1 second

THS is frozen
Aircraft remembers pitch attitude
At 30ft, trims down towards minus 2 degrees nose down over 8 seconds, so we have to pull back to achieve a ‘normal feeling’

Question 14

When does flare mode change to ground mode?

Answer 14

For roll, after touchdown, over half a second, it changes.

For pitch, after we touch down, have to wait 5 seconds, and also pitch attitude is less than 2.5 degrees nose up

Question 15

When changing modes in pitch, how long does this always take?

eg. Ground mode to flight mode?

Answer 15

5 seconds