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ERJ7 > EMB7 Flight Controls > Flashcards

EMB7 Flight Controls Flashcards

1
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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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

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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

A

3

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?

A

Captain

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
Q

How many flap/slat positions?

A

6

25
Q

Are flaps slats electrical or hydraulic?

A

Electrical

26
Q

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

A

Yes, up to 2 more times

27
Q

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

A

Half speed

Flaps 3 to provide adequate airflow for the RAT

28
Q

How many spoiler panels?

A

10 which includes the 6 multifunction panels 3-5

3 modes of multifunction operation

Roll control

Speed brakes

Ground spoilers

29
Q

Which spoiler panels actuate for ground deployment?

A

All 10 automatically to full travel limit

30
Q

Requirements for ground spoiler deployment

A

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

31
Q

On rollout when will spoilers retract?

A

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

32
Q

In which mode are ground spoilers not available?

A

Direct mode

33
Q

In which mode are Speed Brakes not available?

A

Direct Mode

34
Q

How many panels on speed brakes?

A

All 6 multifunction panels

Up to inflight limit if 30°

35
Q

When will speed brakes automatically retract?

A

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

36
Q

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

A

Ailerons and multi function roll spoilers 
Elevators 
Rudder

ERJ7 (14 decks)

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