ORAL* E145 Flight Controls

Question 1

How is elevator controlled

Answer 1

Mechanically

Question 2

How is pitch trim achieved?

Answer 2

Electrically controlled and electrically actuated horizontal stab

Question 3

What doe spilling elevator disconnect do?

Answer 3

Releases the free panel from the jammed one, allowing elevator control

Question 4

Can you reconnect elevator disconnect in flight?

Answer 4

No, only on ground, by maintenance

Question 5

Indication when elevator is disconnected?

Answer 5

Amber light on center pedestal

Question 6

With elevator disconnected, which side has stick pusher?

Answer 6

Left only

Question 7

If elevators disconnected is autopilot available?

Answer 7

No

Question 8

How many tabs each elevator?

Answer 8

2…1 spring and one servo. Servo tab is outer

Question 9

What do servo tabs do?

Answer 9

Deflect proportionately in opposite direction to reduce pressure required

Question 10

What do spring tabs do?

Answer 10

Same as servo tabs in that they move in opposite directions but increase movement with airspeed. At low speeds spring tab remains neutral

Question 11

What do markings on tail in front of horizontal stab mean?

Answer 11

2 degrees for each mark and are a scale…4 degrees up or down

Question 12

How many channels in HSCU? (Horizontal Stab Control Unit)

Answer 12

2

Question 13

Can autopilot use both channels of HSCU?

Answer 13

No, only main channel

Question 14

Is Hor. Trim rate fixed or variable?

Answer 14

Variable according to airspeed

Question 15

During takeoff config check, where should trim be?

Answer 15

In the green

Question 16

How many motors on Horizontal Stab Actuator?

Answer 16

2. One works at a time

Question 17

When is pitch trim automatically commanded?

Answer 17

With autopilot on OR when speed brakes are used?

Question 18

Pitch trim up is inhibited when?

Answer 18

Stick Shaker

Question 19

Pitch trim button authority?

Answer 19

Left over right. All over autopilot. Backup vs. handhweel…1st used

Question 20

If main and backup channels in HSCU command at same time was happens?

Answer 20

One is either temporarily disengaged or can be inactive for remainder of flight, depending on part number of the unit

Question 21

If only half of trim switch is held what happens?

Answer 21

If half for more than 7 seconds that switch becomes ions

Question 22

How many seconds will any trim switch work?

Answer 22

3 seconds, then beep

Question 23

Horizontal Stab stalled and excessive load event

Answer 23

If pitch trim switches are engaged while HSA is stalled the PIT TRIM INOP….when stall ceases message will go away. If switches used more than 16 seconds while stalled the HSCU will turn off the main or backup and message will be permanent

Question 24

BACKUP SYS CUTOUT button is turned off…will autopilot work?

Answer 24

Yes, if main HSCU system is operative

Question 25

The pitch trim green band on EICAS has what range?

Answer 25

4 to 8 degrees, nose up

Question 26

How are ailerons controlled and moved?

Answer 26

Mechanically controlled, hydraulically actuated, which HYD 1 and 2

Question 27

Will ailerons work if you lose both HYD systems?

Answer 27

Yes

Question 28

Aileron Disconnect used...can it be reset in flight?

Answer 28

No, on ground only

Question 29

If ailerons disconnected can autopilot be used?

Answer 29

No

Question 30

Which side of aileron system has roll trim and feel unit?

Answer 30

Right

Question 31

How is roll trim performed

Answer 31

By changing the ailerons neutral position

Question 32

What does AIL SYS INOP mean?

Answer 32

Hydraulic power to Ailerons is out

Question 33

How many rudders are there?

Answer 33

2, forward and aft

Question 34

How are rudders controlled and actuated?

Answer 34

Mechanically controlled, hydraulically actuated

Question 35

The PCU (power control unit) controls rudder with how many actuators?

Answer 35

2, 1 for each hydraulic system

Question 36

How can rudder systems be shut off manually?

Answer 36

Buttons on overhead. 1 each for system 1 and 2

Question 37

How can rudder systems 1 and 2 be shut off automatically

Answer 37

With the speed switch and hard over protection

Question 38

With no hydraulics does rudder still work?

Answer 38

Yes, but it is sluggish and takes more force

Question 39

Both rudder systems work below what airspeed?

Answer 39

135...system 1 stops above 135 knots

Question 40

If rudder system 2 fails above 135?

Answer 40

System 1 takes over

Question 41

Rudder Hard Over Protection is?

Answer 41

Activates in case of runaway rudder...more than 5 degrees of deflection and both engines are above 56% N2 130 lbs of force on the rudder pedal

Question 42

Rudder defection limits?

Answer 42

15 DEGREES ON GROUND

Question 43

RUDDER OVERBOOST Means?

Answer 43

Both system active above 135 knots

Question 44

Gust lock protects what?

Answer 44

Elevator

Question 45

Gust lock works how?

Answer 45

Electric Pins at the elevator.

Question 46

Gust Lock light on glareshield means?

Answer 46

Gust lock in motion, or failure

Question 47

Flap control and actuation?

Answer 47

Electric

Question 48

How many flap motors?

Answer 48

2, both operate all with flexible shafts

Question 49

Can one motor operate all flaps?

Answer 49

Yes, at half speed

Question 50

If flap asymmetry is detected was happens?

Answer 50

Flaps are disabled

Question 51

Flap handle is in different position than flaps when airplane powered up...what will happen

Answer 51

Flaps don't move until the handle is moved

Question 52

How many spoilers?

Answer 52

2 each wing...the outer panels are the speed brakes in flight

Question 53

When will ground spoilers deploy?

Answer 53

WOW, wheel speed > 25 knots, and thrust idle

Question 54

Will pitch trim be auto with auto pilot off and speed brakes deployed?

Answer 54

Yes.

Question 55

To open speed brakes...

Answer 55

Thrust lever below 50 degrees and flaps 0 or 9

Question 56

VFE Flaps 9

Answer 56

250

Question 57

VFE Flaps 22

Answer 57

200

Question 58

VFE Flaps 45

Answer 58

145

Question 59

How to check elevator after gust lock removed?

Answer 59

Control wheel full forward and aft

Question 60

Max flap altitude

Answer 60

20k

Question 61

Max airspeed without retrimming after T/O

Answer 61

160 knots