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FlexJet > Praetor Flight Controls > Flashcards

Praetor Flight Controls Flashcards

1
Q

What type of flight control system does the aircraft have?

A

A functionally distributed Fly-by-wire (FBW) control system

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2
Q

What are the two basic modes of operation for the flight controls?

A

Normal mode (NM) and direct mode (DM)

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3
Q

When will the flight control system revert automatically to Direct Mode (DM) operations?

A

When it is not possible to keep the normal mode (NM) operation due to multiple system failures

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4
Q

Is flight under Direct Mode (DM) recommended? Why or why not?

A

No, it should be avoided as some airplane protection functions are only available in normal mode (NM)

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5
Q

What happens when the AP/PTY button is momentarily pressed?

A

The auto pilot is automatically disengaged

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6
Q

What happens when the AP/PTY button is pressed for more than 1 second?

A

Exclusive control is given to the side stick while pressed in the priority annunciation is activated

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7
Q

What happens when the AP/PTY button is pressed and held for more than 20 seconds?

A

The perspective side stick will have exclusive control latched

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8
Q

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

A

By pressing either side’s priority button

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9
Q

What happens if dual sidestick input occurs, and priority has not been requested by either pilot?

A

A tactile warning and both sidesticks is activated and an oral warning and PFD flag are triggered. The sidestick inputs are algebraically summed.

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10
Q

Is sidestick controller priority logic available in Direct Mode?

A

No, it’s only available in normal (NM)

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11
Q

With the autopilot engaged, what does pressing the Touch Control Steering (TCS) button do?

A

It allows the pilot to manually control the airplane while the autopilot is engaged

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12
Q

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

A

It resets the TCS trim speed bug

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13
Q

How can the multifunction spoilers be deployed for use as speed brakes?

A

By the speed brake lever

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14
Q

What are the angles of multifunction spoilers that correspond with the speed brake positions?

A

From 0 degrees (STOW) to 30 degrees (FULL)

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15
Q

When can the Pitch Trim Switch be manually commanded?

A

Only on the ground or in direct mode (DM)

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16
Q

Which button is used to recover Normal Mode (NM) or to revert to Direct Mode (DM) in the case of a Normal Mode (NM) misbehavior?

A

The FLTCTRL NORMAL MODE button

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17
Q

When is a manual reversion to Direct Mode (DM) inhibited?

A

When the following FCS protection envelopes are engaged:
-Low speed protection
-Angle of Attack (AOA)
-limiter protection
-high speed protection

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18
Q

On the FLIGHT CONTROL synoptic page, what color actuator status indicates that the respective flight control surface is in the normal mode and at least one actuator is engaged?

A

Green

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19
Q

On the FLIGHT CONTROL synoptic page, what does a yellow actuator status indicate?

A

It indicates direct mode and at least one actuator is operational

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20
Q

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

A

In One Engine Inoperative (OEI) condition during takeoff, climb, or go-around flight phase

21
Q

Where is the Low Speed Awareness (LSA) band located? The Pitch Limit Indicators (PLI’s)

A

Adjacent to the speed tape; on the ADI

22
Q

List the three LSA bands in Normal Mode (NM) and what they indicate.

A
  1. VSS-top of the white tape-low speed protection function
  2. VAOA-top of the amber tape-AOA limiter function activation
  3. VLIM-top of the red tape-the speed associated with the maximum allowable AOA airspeed
23
Q

Do the VSS and Vaoa/Vlim indications behave the same in turns and other maneuvers? Why or why not?

A

No because the Vss is defined in terms of speed and Vaoa/Vlim are defined in terms of AOA

24
Q

Do Vaoa and Vlim increase with load factor?

A

Yes

25
Q

Is the AOA limiter function operational in Direct Mode (DM)?

A

No

26
Q

List the two LSA bands in Direct Mode (DM) and what they represent

A
  1. Vms-top of the amber tape
  2. Vsa- top of the red tape, indicates the airspeed at which the stall aural alert is triggered
27
Q

Are the Pitch Limit Indicators (PLI’s) displayed in Direct Mode (DM)?

A

No

28
Q

What color does the Pitch Limit Indicator become if the airspeed drops below Vaoa in Normal Mode (NM)? How about Vlim?

A

Amber, Red

29
Q

How many Flight Control Computers (FCC’s) are sufficient to provide Normal Mode (NM) functionality?

A

One

30
Q

What is the purpose of the Black Airplane Battery?

A

To withstand operation for a minimum of 15 minutes in order for the flight crew to recover the proper airplane to electrical system operation

31
Q

How long does each PBIT test on the FCS take?

A

Less than 1 minute

32
Q

If the PBIT conditions are not satisfied, up to how many PBIT operation attempts can the FCS automatically perform?

A

Up to three

33
Q

During PBIT operation, which CAS message is displayed?

A

The FLTCTRL TEST IN PROGRESS CAS

34
Q

When is the de-rotation control law active?

A

When the airplane touches down

35
Q

What does the neutral spiral stability control law provide?

A

It automatically trims the elevator when the sidestick controller is set back to the neutral position to maintain flight level during turns up to 33 degrees of bank angle

36
Q

If the pilot commands a turn with a bank angle of greater than 33 degrees, what do they need to do in order to maintain level flight in that turn?

A

Maintain the desired sidestick lateral deflection and move the sidestick controller aft

37
Q

List the 4 conditions that will cause the speed brakes to automatically stow

A
  1. If airspeed drops below 160 knots
  2. TLA position is greater than 55 degrees
  3. the flap level and position is set to 3 or full
  4. AOA limiter is engaged
38
Q

If the speed brakes are automatically stowed, what indication will the pilots have and how can the speed brakes be reactivated?

A

The cyan SPDBRK LEVER DISAG CAS message is displayed and the speed brake lever must be set back to stow

39
Q

How is manual reversion to Direct Mode (DM) available if the flight crew detects a Flight Control Normal Mode (NM) misbehavior?

A

By pressing the FLIGHT CONTROLS normal mode button

40
Q

What do the Flight Control Laws (CLAWS) provide?

A

Flight envelope protections to prevent the airplane from exceeding the flight limit envelope limitations

41
Q

What are the two flight envelopes for the airplane?

A

The normal flight envelope and the limit flight envelope.

42
Q

What are the limits of the normal flight envelope?

A

33 degree bank angle protection
high speed protection (Vmo)
low-energy avoidance protection (1.13 Vs)
pitch attitude protection

43
Q

What re the limits of the high-speed protection envelope?

A

the airspeed is limited to Vmo +22kts

44
Q

When does the pitch attitude protection activate?

A

At pitch angles of 30 degrees pitch up and 15 degrees pitch down

45
Q

What does the limit flight envelope require?

A

More effort to maintain the airplane in this configuration

46
Q

What are the boundaries/hard limits of the limit flight envelope?

A

The external boundaries = reached at full control application
The hard limits of limit flight envelope=maximum AoA, airplane structural limits (load factor protection), maximum sideslip protection, and dive speed protection.
There are no hard limits for pitch and bank angles

47
Q

Is the AP operational in Direct Mode (DM)?

A

No

48
Q

In Direct Mode (DM), how does the airplane behave?

A

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

FlexJet (13 decks)

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