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+4)+"@## > 900 Flight Controls > Flashcards

900 Flight Controls Flashcards

1
Q

The two types of spoilers on the 900 are the,

A

Outboard spoilers/spoilerons

Inboard spoilers/flight spoilers

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2
Q

The multi function spoilers are used for?

A

Assisting the ailerons for turn coordination as well as used for ground lift dumping.

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5
Q

What’s drives the flaps?

A

a PDU

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6
Q

The emergency flap switch selects the flaps to?

A

20°

Actuated by the SFECU

Under 230 kn

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7
Q

What’s commands the PDU to deploy or retract the slats and flaps?

A

The SFECU’s

Slat/flaps electronic control units

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8
Q

When do we have half speed flaps?

A

When one of the two PDU’s fail

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9
Q

Each spoiler is actuated by?

A

A single electro hydraulic PCU

Power control unit

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10
Q

What controls spoiler operation?

A

Spoiler stabilizer control units(SSCU)

2-dual channel

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11
Q

Roll assist is provided by?

A

Multi functional spoilers

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12
Q

Primary flights controls?

A

Ailerons
Rudder
Elevators
Spoilerons

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13
Q

Aileron.. Autopilot is connected to which side?

A

First officer side

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14
Q

How many PCU’s Power the ailerons?

A

2/side

Hydraulic

Mechanically controlled by either control wheel

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15
Q

Function of the flutter dampers?

A

Prevent surface flutter in the event of hydraulic fluid loss at the PCUs during flight

Gust lock function on the ground

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16
Q

If roll disconnect handle is pulled?

A

Unaffected aileron and opposite side spoileron

20 seconds…ROLL SEL
SPOILERON ROLL CAUTION

press ROLL SEL on operable side
( allows use of both spoilerons)

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17
Q

Aileron AP servo connected to?

A

Rt elevator stystem

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18
Q

What automatically controls operation of the spoilers?

A

SSCU’s

Spoiler stabilizer control units

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19
Q

Ailerons..
Operated?

Controlled?

A

Electrically operated

Manually controlled

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20
Q

Control jam of rudder?

A

Pedals remain operable through anti-jam mechanisms

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21
Q

Each yaw damper response to inputs from

A

One flight control computer

One yaw damper must be engaged for the autopilot

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22
Q

Stall protection system is connected to which side?

A

Right elevator system

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23
Q

Autopilot is connected to which elevator system?

A

Left elevator system

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24
Q

4 modes to the SSCU

A

Manual trim

Autopilot trim
Auto trim( flaps extended or retracted)

Mach trim(for pitch down tendencies)

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25
Q

How many PCU’s per spoiler?

A

1 PCU /spoiler

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26
Q

When is roll assist used?

A

At low speeds

27
Q

When aircraft approaches a high angle of attack, The stall protection computer well?

A

Stick shaker

Continuous ignition

Disengage autopilot

28
Q

To activate the stick pusher?

A

Both switches must be selected to on

31
Q

Horiz stab trim priority?

A 
Pilot
Copilot
Autopilot
Autotrim
Mach trim
32
Q

With AP engaged, high rate of horiz trim mvmt occurs when?

A

When. Flaps are extending or retracting

33
Q

Mach trim oprates when?

A

Autopilot off and no pilot trim commands inputted

34
Q

If PCU runaway? Remaining PCU’s?

A

Remaining PCUs override runaway

35
Q

Yaw damps controlled by?

A

FCCs

36
Q

Bute door?

A

Directs airflow over flaps leafing edge vane

37
Q

Btms displayed?

A

Gear and flaps indications

38
Q

How are the ailerons connected

A

The ailerons are directly connected to the control yoke through linkage and police

39
Q

How many aileron Flutter dampers for aileron?

A

1

40
Q

When are Fletcher dampers visible on the synoptic page?

A

Only when failed

41
Q

How many your dampers needed for the autopilot

A

1

42
Q

Is there a memory item for uncommitted YAW?

A

Yes

43
Q

How many PCU suse for spoiler!

A

1

44
Q

How is the aileron trim switch controlled and operated?

A

Electronically controlled

Electronically operated

45
Q

Aileron trim indications on the synoptic page… Color on the ground for neutral position?

In-flight?

A

Indications green for neutral position on the ground

White once airborne regardless of setting

46
Q

Function of Bute doors?

A

Direct air flow over the flaps leading edge then

47
Q

Where are the two gates on the flap lever?

A

8° retraction

20° extension

48
Q

When do the slat flap position indications up here?

A

Flaps out a zero

Or

Landing gear extended

BTMS in red range

49
Q

Is there any to direct linkage for the multifunction spoilers?

A

No

Fly by wire controlled no direct linkage

Electronic. Signals from the SSCU

50
Q

What do tge PCUs do?

A

Translate control yoke movements into hydraulic actuation of the ailerons

51
Q

Are the ailerons independent?

A

Can be disconnected by a disconnect handle

52
Q

When the ailerons are disconnected who controls what??

A

Captain controls left aileron and right MFS

FO controls right aileron and left MFS

53
Q

How many yards dampers needed for autopilot

A

One-yard damper needs to be engaged for the autopilot to engage

54
Q

MFS?

A

Flight spoilers

And

Spoilerons

55
Q

Slowest rate of trim?

A

Mach trim

fastest=pilot manual trim

56
Q

Slats actuated?

A

Electrically(pdu)

57
Q

Bute doors?

A

Direct airflow over flaps leading edge vane

58
Q

Trim clacker??

A

Mire than 3 seconds

59
Q

Mach trim avail abv?

A

.40

60
Q

Where is the primary feel unit located?

A

First officers rudder pedal assembly

61
Q

Each elevator system is hydraulically powered by how many PCUs

A

3

62
Q

How many stab channels need to be engaged for Mach

trim

A

One channel must be engaged

+4)+"@## (19 decks)

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