Flight Controls Flashcards

0
Q

Secondary flight control system composed of

4

A

Horizontal stab
Flaps and slats
Multifunction spoiler when used as speed brakes or ground spoilers
Dedicated ground spoilers

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1
Q

Primary flight control
System composed of

4

A

Ailerons and multi function roll spoilers
Elevators
Rudder

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2
Q

Which controls are fly by wire

A

Elevators
Rudders
All secondary flight controls

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3
Q

Which controls are not fly by wire

A

Ailerons

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4
Q

What are the 2 primary flight control electronics

A

P- ACE. ( primary actuator control electronics)

FCM. (Flight control modules)

These 2 together operate either
The electro hydraulic

Or

Electro mechanical actuators

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5
Q

How many FCM’s

A

4

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6
Q

How many ACE’s

A

9

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7
Q

2 modes of FCS OPERATION

A

Normal and

Direct

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8
Q

What is direct mode

A

The FCM is removed from the loop

I.e. Loss of data from all FCM or multiple ACE failures

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9
Q

How can pilot change modes

A

Pushing the flight controls mode button will always let pilot toggle between modes

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10
Q

What is the PBIT test and how long is it good for

A

Power up built in test

Tests both electrical and hydraulic systems

Good for 50 hours

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11
Q

How long does the electrical PBIT take

A

3 minutes

Automatic on power up

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12
Q

How long does the hydraulic PBIT take

A

1 minute

Performed automatically on ground when all 3 hydraulic systems are powered

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13
Q

The hydraulic PBIT does not run when reservoir temps are lower than _____. Except when

A

50°f or 10°c

Flt control bit expired is shown

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14
Q

How are elevator surfaces actuated

A

Hydraulically through PCU

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15
Q

What does the ETC do

A

Elevator thrust compensation

Applies elevator controls to reduce pitching from thrust changes

16
Q

How is the horizontal stabilizer controlled

A

Electro-mechanical by either the trim switches

Yoke or pedestal

Or through FCM from autopilot and speed brakes

17
Q

Manual pilot trim inputs are limited to __ second intervals to prevent runaway

18
Q

Stabilizer trim priority

A
  1. Backup switches
  2. Captain
  3. First officer
  4. FCM
19
Q

In case if electrical failure followed by RAT deployment the trim function will operate at

A

Half speed for manual or autopilot

20
Q

On which side is the aileron AFU located

21
Q

How many multifunction spoiler panels

A

6
L3, L4, L5. ( left wing)
R3, R 4, R 5( right wing)

22
Q

How is the rudder controlled

A

2 Electro hydraulic actuator

Captain controls upper and
FO THE lower

23
Q

How many flaps and slats

A

4 flaps –/2 per wing

8 slats-// 4 per wing

24
How many flap/slat positions
6
25
Are flaps slats electrical or hydraulic
Electrical
26
Can the slats flaps be moved if the strike protection is actuated
Yes, up to 2 more times
27
If the RAT. Is only source if AC power the slats flaps operate at ___ and they are limited to flap position___
Half speed Flaps 3 to provide adequate airflow for the RAT
28
Will flaps still move with a slat failure What about the other way
Yes
29
How many spoiler panels
10 which includes the 6 multifunction panels 3-5
30
3 modes of multifunction operation
Roll control Speed brakes Ground spoilers
31
Which spoiler panels actuate for ground deployment
All 10 automatically to full travel limit
32
Requirements for ground spoiler deployment
Weight on wheels Wheel speed above 45 kts or Airspeed above. 60 kts TLA below 26°
33
On rollout when will spoilers retract
Wheel speed below 45 kts for 5 seconds or TLA increased above 35°
34
Ground spoilers not available in
Direct mode
35
Speed brakes not avail in
Direct mode
36
How many panels on speed brakes
All 6 multifunction panels Up to inflight limit if 30°
37
When will speed brakes automatically retract
Slat flap lever position 2 or higher Airspeed below 180 kts TLA beyond 70° ( go around)