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Praetor Systems > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

What kind of flight control system does the aircraft have?

A

A functionally distributed Fly-by-wire control system

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2
Q

Two basic modes of operation

A

Normal (NM) and Direct (DM)

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3
Q

When will the flight control system automatically revert back to Direct mode?

A

When Normal mode is not possible due to multiple system failures

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4
Q

Is flight under Direct mode recommended?

A

No, it should be avoided since some protection functions are lost

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5
Q

What happens if the AP/PTY button is pressed?

A

Auto pilot is disengaged

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6
Q

What happens if the AP/PTY button is pressed for longer than a second?

A

Exclusive control given to the side stick while it’s pressed in and priority annunciation is activated

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7
Q

If one side stick has been latched out, how can exclusive control be removed?

A

By pressing either sides priority button

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8
Q

What happens if dual side stick input occurs and priority has not been requested by either?

A

Tactile warning in each stick, oral warning, PFD flag are triggered.
The inputs are algebraically summed

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9
Q

Is sidestick controller priority available in Direct Mode?

A

No, normal mode only

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10
Q

With AP engaged, Touch Control Steering (TCS) does what?

A

Allows pilot to manually control airplane while AP is engaged

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11
Q

During manual flight with flaps 3 or full, gear down, AP off, what does the Touch Control Steering (TCS) button do?

A

Resets TCS trim speed bug

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12
Q

Pulling the speed brake level activates what?

A

Deploys multifunction spoilers as speedbrakes

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13
Q

What are the multifunction spoiler angles when used as speed brakes?

A

Stowed is 0, FULL is 30

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14
Q

When can the Pitch trim switch be manually operated?

A

On the ground or in Direct mode

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15
Q

What button is used to recover Normal Mode or revert to Direct Mode is Norm is malfunctioning?

A

FLTCTRL NORMAL MODE button

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16
Q

When is a manual switch to DM inhibited?

A

FCS protection engaged: Low or high speed protection, AOA protection

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17
Q

Flight control synoptic page, color yellow actuator status mean.

A

DM and at least one actuator is engaged

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18
Q

When is side slip target presented by a blue side slip skid indicator?

A

One engine inop during TO, climb, or GA

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19
Q

Where is the Low Speed Awareness (LSA) located?

A

Adjacent the speedtape

20
Q

Where are the Pitch Limit Indicators (PLI’s) located

A

On the ADI

21
Q

List the 3 LSA bands in NM and what they indicate

A

Vss - top of white tape - low speed protection function
Vaoa - top of Amber tape - AOA limiter function activation
Vlim - top of red tape - max allowable AOA airspeed

22
Q

Do the Vss and Vaoa/Vlim behave the same in turns and other maneuvers?

A

No, Vss goes off speed and the other two go off AOA

23
Q

Do Vaoa and Vlim increase with load factor?

A

Yes

24
Q

Is the AOA limiter function available in DM?

A

No

25
Q

List the 2 LSA bands in DM

A

Vms - top of Amber tape

Vsa- top of red tape - stall aural alert is activated

26
Q

Are the Pitch Limit Indicators displayed in DM?

A

No

27
Q

PLI colors if airspeed drops below Vaoa or Vlim in NM

A

Amber below Vaoa, Red below Vlim

28
Q

How many flight control computers (FCC) do you need to maintain NM

A

1

29
Q

Purpose of black airplane battery

A

To withstand system operation for 15 while we figure out how to get proper power

30
Q

How long does each PBIT test of the FCS take?

A

Less than a minute

31
Q

If PBIT conditions are not satisfied how many PBIT attempts can the FCS automatically perform?

A

Up to 3

32
Q

During PBIT operation what CAS message is shown?

A

FLTCTRL TEST IN PROGRESS

33
Q

When is the derotation control law active

A

Touch down

34
Q

What does the neutral spiral stability control law provide?

A

Automatically trims the elevator when the stick is set back to the neutral position to maintain level flight during turns up to 33 * bank

35
Q

If you want to bank more than 33* what do you have to do to keep it level?

A

Stick aft during the turn

36
Q

4 things that auto stow the speed brakes

A

Speed below 160 kts or TLA position greater than 55*,

Flaps 3 or Full, or AOA limiter engaged

37
Q

How do you know that the speed brakes auto stowed and how can you use them again?

A

Cyan SPDBRK LEVER DISAG displayed and the lever will have to be stored again.

38
Q

What do the the Flight Control Laws (CLAWS) provide?

A

Prevents plane from exceeding flight envelope limits

39
Q

What are the 2 flight envelopes

A

Normal and limit

40
Q

Limits of normal envelope

A

33* bank angle
High speed protection (Vmo)
Low energy avoidance protection (1.13 Vs)
Pitch attitude protection

41
Q

High speed protection limits

A

Vmo + 22kts

42
Q

When does pitch attitude protection activate?

A

+30/-15

43
Q

What does the limit flight envelope require?

A

More effort to maintain the plane in this configuration

44
Q

Boundaries of limit envelope

A

Full control application (no hard limits on pitch and bank)
Max AOA
Structural limits (load factor protection)
Max sideslip protection
Dive speed protection

45
Q

Is AP operation in DM

A

No

46
Q

In DM how does the airplane behave?

A

Like a conventional airplane. Stick and pedal deflections are directly related to the surface position.

Praetor Systems (18 decks)

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