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Flexjet Praetor 500 > Flight Controls > Flashcards

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. AOM 9-08-01

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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). AOM 9-08-40

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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. AOM 9-08-
40

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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)
AOM 9-08-40

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5
Q

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

A

The auto pilot is automatically disengaged. AOM 9-08-30

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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. AOM 9-08-
30

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7
Q

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

A

The respective side stick will have exclusive control latched. AOM 9-08-30

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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. AOM 9-08-30

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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 in both sidesticks is activated and an aural warning and PFD flag are triggered. The
sidestick inputs are algebraically summed. AOM 9-08-30

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10
Q

Is sidestick controller priority logic available in Direct Mode?

A

No, it’s only available in normal mode (NM). AOM 9-08-30

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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. AOM 9-08-030

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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. AOM 9-08-30

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13
Q

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

A

By the speed brake lever. AOM 9-08-30

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14
Q

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

A

From 0° (STOW) to 30° (FULL). AOM 9-08-30

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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). AOM 9-08-30

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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. AOM 9-08-30

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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 and high-speed protection. AOM 9-08-30

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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. AOM 9-08-30

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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. AOM 9-08-30

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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. AOM 9-08-30

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. AOM 9-08-30

22
Q

List the three LSA bands in NORMAL MODE (NM) and what they indicate.

A
  • Vss – top of the white tape – low speed protection function.
  • Vaoa – Top of the amber tape – AOA limiter function activation.
  • Vlim – Top of the red tape – the speed associated with the maximum allowable AOA airspeed. AOM 9-08-30
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. AOM 9-08-30

24
Q

Do Vaoa and Vlim increase with load factor?

A

Yes. AOM 9-08-30

25
Q

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

A

No. AOM 9-08-30

26
Q

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

A
  • Vms – top of the amber tape.
  • Vsa – Top of the red tape, indicates the airspeed at which the stall aural alert is triggered. AOM 9-08-30
27
Q

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

A

No. AOM 9-08-30

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. AOM 9-08-30

29
Q

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

A

One. AOM 9-08-30

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 proper electrical system operation. AOM 9-08-40

31
Q

How long does each PBIT test of the FCS take?

A

Less than one minute. AOM 9-08-40

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. AOM 9-08-40

33
Q

During PBIT operation, which CAS message is displayed?

A

The FLITCTRL TEST IN PROGRESS CAS. AOM 9-08-40

34
Q

When is the de-rotation control law active?

A

When the airplane touches down. AOM 9-08-50

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° of bank angle. AOM 9-08-50

36
Q

If the pilot commands a turn with a bank angle of greater than 33°, 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. AOM 9-08-50

37
Q

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

A

If the airspeed drops below 160 knots, the TLA position is greater than 55°, the flap lever is set to 3 or full, or the AOA limiter is engaged. AOM 9-08-50

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. AOM 9-08-50

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. AOM 9-08-50

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.
AOM 9-08-50

41
Q

What are the two flight envelopes for the airplane?

A

The normal flight envelope and the limit flight envelope. AOM 9-08-50

42
Q

What are the limits of the normal flight envelope?

A

33° bank angle protection, high speed protection (Vmo), low-energy avoidance protection (1.13 Vs) and pitch
attitude protection. AOM 9-08-50

43
Q

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

A

The airspeed is limited to Vmo +22 kts. AOM 9-08-50

44
Q

When does the pitch attitude protection activate?

A

At pitch angles of 30° pitch up and 15° pitch down. AOM 9-08-50

45
Q

What does the limit flight envelope require?

A

More effort to maintain the airplane in this configuration. AOM 9-08-50

46
Q

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

A

The external boundaries of the limit flight envelope are reached at full control application. The hard limits of the limit flight envelope are the 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. AOM 9-08-50

47
Q

Is the AP operational in Direct Mode (DM)?

A

No. AOM 9-08-50

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 control surface position. AOM 9-08-50

Flexjet Praetor 500 (25 decks)

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