EMB7 Flight Controls

Question 1

Secondary flight control system composed of? (4)

Answer 1

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

Question 2

Which controls are fly by wire?

Answer 2

Elevators 
Rudders 
All secondary flight controls

Question 3

Which controls are not fly by wire?

Answer 3

Ailerons

Question 4

What are the 2 primary flight control electronics?

Answer 4

P- ACE. ( primary actuator control electronics)

FCM. (Flight control modules)

These 2 together operate either 
The electro hydraulic

Or

Electro mechanical actuators

Question 5

How many FCM’s?

Answer 5

4

Question 6

How many ACE’s?

Answer 6

9

Question 7

2 modes of FCS OPERATION

Answer 7

Normal and 
Direct

Question 8

What is direct mode?

Answer 8

The FCM is removed from the loop

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

Question 9

How can pilot change modes?

Answer 9

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

Question 10

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

Answer 10

Power up built in test

Tests both electrical and hydraulic systems

Good for 50 hours

Question 11

How long does the electrical PBIT take?

Answer 11

3 minutes

Automatic on power up

Question 12

How long does the hydraulic PBIT take?

Answer 12

1 minute

Performed automatically on ground when all 3 hydraulic systems are powered

Question 13

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

Answer 13

50°f or 10°c 
Flt control bit expired is shown

Question 14

How are elevator surfaces actuated?

Answer 14

Hydraulically through PCU

Question 15

What does the ETC do?

Answer 15

Elevator thrust compensation

Applies elevator controls to reduce pitching from thrust changes

Question 16

How is the horizontal stabilizer controlled?

Answer 16

Electro-mechanical by either the trim switches

Yoke or pedestal

Or through FCM from autopilot and speed brakes

Question 17

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

Answer 17

3

Question 18

Stabilizer trim priority

Answer 18

1. Backup switches 
2. Captain 
3. First officer 
4. FCM

Question 19

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

Answer 19

Half speed for manual or autopilot

Question 20

On which side is the aileron AFU located?

Answer 20

Captain

Question 21

How many multifunction spoiler panels?

Answer 21

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

Question 22

How is the rudder controlled?

Answer 22

2 Electro hydraulic actuator

Captain controls upper and 
FO THE lower

Question 23

How many flaps and slats?

Answer 23

4 flaps –/2 per wing 
8 slats-// 4 per wing

Question 24

How many flap/slat positions?

Answer 24

6

Question 25

Are flaps slats electrical or hydraulic?

Answer 25

Electrical

Question 26

Can the slats flaps be moved if the strike protection is actuated?

Answer 26

Yes, up to 2 more times

Question 27

If the RAT. Is only source if AC power the slats flaps operate at ___ and they are limited to flap position___

Answer 27

Half speed Flaps 3 to provide adequate airflow for the RAT

Question 28

How many spoiler panels?

Answer 28

10 which includes the 6 multifunction panels 3-5 3 modes of multifunction operation Roll control Speed brakes Ground spoilers

Question 29

Which spoiler panels actuate for ground deployment?

Answer 29

All 10 automatically to full travel limit

Question 30

Requirements for ground spoiler deployment

Answer 30

Weight on wheels 
Wheel speed above 45 kts or 
Airspeed above. 60 kts 
TLA below 26°

Question 31

On rollout when will spoilers retract?

Answer 31

Wheel speed below 45 kts for 5 seconds or TLA increased above 35°

Question 32

In which mode are ground spoilers not available?

Answer 32

Direct mode

Question 33

In which mode are Speed Brakes not available?

Answer 33

Direct Mode

Question 34

How many panels on speed brakes?

Answer 34

All 6 multifunction panels Up to inflight limit if 30°

Question 35

When will speed brakes automatically retract?

Answer 35

Slat flap lever position 2 or higher 
Airspeed below 180 kts 
TLA beyond 70° ( go around)

Question 36

What is the Primary flight control 
System composed of? (4)

Answer 36

Ailerons and multi function roll spoilers 
Elevators 
Rudder