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Allegiant A320 Systems (2024) > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

Q1 | FLIGHT CONTROLS PANEL

What does ELAC stand for?

[ FCOM-DSC-27-10-10 ]

A

Elevator Aileron Computer

[ FCOM-DSC-27-10-10 ]

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2
Q

Q2 | FLIGHT CONTROLS PANEL

How many ELACs are installed?

[ FCOM-DSC-27-10-10 ]

A

2

[ FCOM-DSC-27-10-10 ]

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3
Q

Q3 | FLIGHT CONTROLS PANEL

What are the functions of the ELAC?

[ FCOM-DSC-27-10-20 ]

A
  • Normal elevator and stabilizer control
  • Normal aileron control
  • Normal pitch and roll
  • Alternate pitch
  • Direct pitch and roll
  • Abnormal attitude
  • Aileron droop
  • Acquisition of autopilot orders

[ FCOM-DSC-27-10-20 ]

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4
Q

Q4 | FLIGHT CONTROLS PANEL

Under Normal Law, what does ELAC 1 control?

[ QRH OPS.07A ]

A
  • Primary – Aileron control (roll)
  • Standby – Elevator / Trimmable Horizontal Stabilizer control (backs up ELAC 2)

[ QRH OPS.07A ]

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5
Q

Q5 | FLIGHT CONTROLS PANEL

Under Normal Law, what does ELAC 2 control?

[ QRH OPS.07A ]

A

Primary – Elevator / Stabilizer (pitch)
Standby – Aileron control (backs up ELAC 1)

[ QRH OPS.07A ]

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6
Q

Q6 | FLIGHT CONTROLS PANEL

What does SEC stand for?

[ FCOM-DSC-27-10-10 ]

A

Spoiler Elevator Computer

[ FCOM-DSC-27-10-10 ]

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7
Q

Q7 | FLIGHT CONTROLS PANEL

How many SECs are installed?

[ FCOM-DSC-27-10-10 ]

A

3

[ FCOM-DSC-27-10-10 ]

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8
Q

Q8 | FLIGHT CONTROLS PANEL

What functions are performed by the SECs?

[ FCOM-DSC-27-10-20 ]

A
  • Normal roll (by controlling the spoilers)
  • Speed brakes and ground spoilers (SEC 1 & 3 only)
  • Alternate pitch (SEC 1 & 2 only)
  • Direct pitch (SEC 1 & 2)
  • Direct roll
  • Abnormal attitude

[ FCOM-DSC-27-10-20 ]

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9
Q

Q9 | FLIGHT CONTROLS PANEL

Under Normal Law, what do the 3 SECs control?

[ QRH OPS.07A ]

A
  • Primary – Spoiler control (roll)
  • Standby – Elevator / Stabilizer control (SEC 1 & 2 back up the ELACs)

[ QRH OPS.07A ]

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10
Q

Q10 | FLIGHT CONTROLS PANEL

What is the sole purpose of SEC 3 in Normal Law?

[ FCOM-DSC-27-10-20 ]

A

Spoiler control (Spoilers 1 & 2 only)

[ FCOM-DSC-27-10-20 ]

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11
Q

Q11 | FLIGHT CONTROLS PANEL

What does FAC stand for?

[ FCOM-DSC-27-10-10 ]

A

Flight Augmentation Computer

[ FCOM-DSC-27-10-10 ]

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12
Q

Q12 | FLIGHT CONTROLS PANEL

How many FACs are installed?

[ FCOM-DSC-27-10-10 ]

A

2

[ FCOM-DSC-27-10-10 ]

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13
Q

Q13 | FLIGHT CONTROLS PANEL

What are the functions of the FACs?

[ FCOM-DSC-27-10-20 ]

A
  • Normal roll (turn coordination and yaw damping)
  • Rudder trim
  • Rudder travel limit
  • Alternate yaw

[ FCOM-DSC-27-10-20 ]

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14
Q

Q14 | FLIGHT CONTROLS PANEL

In Normal Law, what do the FACs provide (YAWL)?

[ FCOM-DSC-22-40-10 ]

A
  • Y – Yaw Control – Damping and turn coordination, rudder travel limiter, rudder trim
  • A – Airspeed Protection Computation (Alpha Protection, high / low speed limits, maneuvering speed, PFD speed scale)
  • W – Windshear protection (Reactive and not Predictive)
  • L – Low Energy Warning Protection (“SPEED, SPEED”)

[ FCOM-DSC-22-40-10 ]

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15
Q

Q15 | FLIGHT CONTROLS PANEL

Is full rudder deflection available during all flight regimes?

[ FCOM-DSC-27-10-20 ]

A

No
Rudder deflection is limited as a function of airspeed

[ FCOM-DSC-27-10-20 ]

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16
Q

Q16 | FLIGHT CONTROLS PANEL

How are the flight control surfaces controlled and actuated?

[ FCOM-DSC-27-10-10 ]

A

All surfaces are controlled electrically and actuated hydraulically

[ FCOM-DSC-27-10-10 ]

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17
Q

Q17 | FLIGHT CONTROLS PANEL

When is automatic pitch trim available?

[ FCOM-DSC-27-20-10-20 ]

A

In flight under Normal Law with bank angle less than 33° with or without autopilot engaged

[ FCOM-DSC-27-20-10-20 ]

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18
Q

Q18 | FLIGHT CONTROLS PANEL

How is roll control normally achieved?

[ FCOM-DSC-27-10-20 ]

A

1 aileron and 4 spoilers on each wing

[ FCOM-DSC-27-10-20 ]

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19
Q

Q19 | FLIGHT CONTROLS PANEL

If both FACs fail, is maximum rudder deflection available?

[ FCOM-DSC-27-10-20 ]

A

Yes, after slat extension

[ FCOM-DSC-27-10-20 ]

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20
Q

Q20 | TRIMMABLE HORIZONTAL STABILIZER

How is the THS normally operated in flight?

[ FCOM-DSC-27-10-20 ]

A

The ELACs (primary) and SECs (secondary) control trim functions automatically

[ FCOM-DSC-27-10-20 ]

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21
Q

Q21 | TRIMMABLE HORIZONTAL STABILIZER

If NO hydraulic power is available can the THS be positioned?

[ FCOM-DSC-27-10-20 ]

A

No – the THS requires hydraulic power from the Green or Yellow systems

[ FCOM-DSC-27-10-20 ]

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22
Q

Q22 | TRIMMABLE HORIZONTAL STABILIZER

If a complete flight control computer failure occurs can the THS be positioned?

[ FCOM-DSC-27-10-20 ]

A

Yes
Mechanical trimming is possible by manually positioning the Pitch Trim Wheel

[ FCOM-DSC-27-10-20 ]

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23
Q

Q23 | TRIMMABLE HORIZONTAL STABILIZER

Can you move the PITCH trim wheel if all systems are working normally?

[ FCOM-DSC-27-10-20 ]

A

Manual inputs have priority over computer inputs. The autopilot will disconnect

[ FCOM-DSC-27-10-20 ]

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24
Q

Q24 | TRIMMABLE HORIZONTAL STABILIZER

What happens to the THS when the aircraft enters into Ground Mode?

[ FCOM-DSC-27-20-10-20 ]

A

The trim automatically resets to zero (inside the green band)

[ FCOM-DSC-27-20-10-20 ]

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25
Q

Q25 | GLARESHEILD / FCU

What does the red arrow in the SIDE STICK PRIORITY light mean?

[ FCOM-DSC-27-20-30 ]

A

It illuminates in front of the pilot losing authority

[ FCOM-DSC-27-20-30 ]

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26
Q

Q26 | GLARESHEILD / FCU

How would you regain control if you had just lost sidestick authority?

[ FCOM-DSC-27-20-30 ]

A
  • The last pilot to press the Sidestick pb will have authority
  • An aural “Priority Left” or “Priority Right” will
    sound

[ FCOM-DSC-27-20-30 ]

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27
Q

Q27 | GLARESHEILD / FCU

What do flashing green CAPT and F/O SIDESTICK PRIORITY lights indicate?

[ FCOM-DSC-27-20-30 ]

A

Both sidesticks have been moved simultaneously and neither pilot has taken priority

[ FCOM-DSC-27-20-30 ]

28
Q

Q28 | GLARESHEILD / FCU

What happens when both pilots make an input simultaneously on the sidesticks?

[ FCOM-DSC-27-20-30 ]

A
  • The inputs are algebraically summed up to the normal limits
  • An aural “Dual Input” will sound
  • Green CAPT and F/O lights will illuminate

[ FCOM-DSC-27-20-30 ]

29
Q

Q29 | FLAPS & SLATS

With only Green hydraulic system pressure available, will both the flaps and slats operate?

[ FCOM-DSC-27-30-10 ]

A

Yes, at a slower speed

[ FCOM-DSC-27-30-10 ]

30
Q

Q30 | FLAPS & SLATS

What system prevents flap or slat asymmetry?

[ FCOM-DSC-27-30-10 ]

A

Wing Tip Brakes (WTB)

[ FCOM-DSC-27-30-10 ]

31
Q

Q31 | FLAPS & SLATS

What causes the WTBs to activate?

[ FCOM-DSC-27-30-10 ]

A
  • Runaway (Move handle to 1, all go to 3)
  • Overspeed (Flap jack screw breaks)
  • Asymmetry (Both on one side move farther)
  • Movement (Never touch handle, ALL just move)

ROAM

[ FCOM-DSC-27-30-10 ]

32
Q

Q32 | FLAPS & SLATS

If the WTB activates due to a flap asymmetry can the slats still operate?

[ FCOM-DSC-27-30-10 ]

A

Yes, only flap operation is inhibited

[ FCOM-DSC-27-30-10 ]

33
Q

Q33 | FLAPS & SLATS

How may Slat/Flap Control Computers (SFCC) are installed?

[ FCOM-DSC-27-30-10 ]

A

2

[ FCOM-DSC-27-30-10 ]

34
Q

Q34 | FLAPS & SLATS

What would occur if one SFCC failed?

[ FCOM-DSC-27-30-10 ]

A

The slats and flaps would continue to operate, but at half speed

[ FCOM-DSC-27-30-10 ]

35
Q

Q35 | FLAPS & SLATS

What flap/slat configurations correspond to position 1 on the FLAPS lever and how do they differ?

[ FCOM-DSC-27-30-20 ]

A
  • CONF 1+F is used for takeoff and provides both slats (position 1) + flaps
  • CONF 1 is used in-flight and is slats only

[ FCOM-DSC-27-30-20 ]

36
Q

Q36 | FLAPS & SLATS

When will the Automatic Retraction System (ARS) operate?

[ FCOM-DSC-27-30-10 ]

A

During acceleration in CONF 1+F the FLAPS (not slats) will automatically retract to 0 at 210 knots

[ FCOM-DSC-27-30-10 ]

37
Q

Q37 | FLAPS & SLATS

What is Alpha Lock?

[ FCOM-DSC-27-30-10 ]

A

This function inhibits retracting slats from 1 to 0 at a high angle of attack or low airspeed

[ FCOM-DSC-27-30-10 ]

38
Q

Q38 | FLAPS & SLATS

When the FLAP legend appears in blue on the upper ECAM display what is indicated?

[ FCOM-DSC-27-30-20 ]

A

Flaps/slats in transit

[ FCOM-DSC-27-30-20 ]

39
Q

Q39 | FLAPS & SLATS

What happens to the ailerons when the flaps are extended?

[ FCOM-DSC-20-10-20 ]

A

The ailerons droop 5°

[ FCOM-DSC-20-10-20 ]

40
Q

Q40 | SPOILERS / SPEEDBRAKES

Is there any landing configuration when speed brake extension is inhibited?

[ FCOM-DSC-27-10-20 ]

A

Flaps FULL

[ FCOM-DSC-27-10-20 ]

41
Q

Q41 | SPOILERS / SPEEDBRAKES

When do the Ground Spoilers automatically extend?

[ FCOM-DSC-27-10-20 ]

A

Partial – When reverse thrust is selected on at least one engine with the other at idle and one main landing gear strut is compressed

Full – At touchdown of both main gears, or in case of RTO with airspeed above 72 knots, when BOTH thrust levers at IDLE (if ground spoilers armed) or when reverse thrust is selected on at least one engine with the other thrust lever at IDLE (if the ground spoilers are not armed)

[ FCOM-DSC-27-10-20 ]

42
Q

Q42 | SPOILERS / SPEEDBRAKES

At touchdown with reverse selected and only one landing gear strut compressed, will the ground spoilers extend?

[ FCOM-DSC-27-10-20 ]

A

Partially – Full extension is limited until both main gear struts are compressed

[ FCOM-DSC-27-10-20 ]

43
Q

Q43 | SPOILERS / SPEEDBRAKES

When will the ground spoilers automatically retract?

[ FCOM-DSC-27-10-20 ]

A

When at least one thrust lever is advanced above IDLE

[ FCOM-DSC-27-10-20 ]

44
Q

Q44 | SPOILERS / SPEEDBRAKES

In flight, what happens if a spoiler fault is detected or electrical power is lost?

[ FCOM-DSC-27-10-20 ]

A

The spoiler automatically retracts

[ FCOM-DSC-27-10-20 ]

45
Q

Q45 | SPOILERS / SPEEDBRAKES

When is speedbrake extension inhibited?

[ FCOM-DSC-27-10-20 ]

A
  • SEC 1 and 3 have failed
  • AOA protection is active
  • Flaps FULL
  • Elevator (L or R) fault (only spoilers 3 and 4 are inhibited)
  • Thrust levers above the MCT position

SAFET

[ FCOM-DSC-27-10-20 ]

46
Q

Q46 | SPOILERS / SPEEDBRAKES

What is the difference between the A319 and A320 regarding speed brake usage with the AP on?

[ FCOM-DSC-27-10-20 ]

A
  • With the A319 you get full spoiler deflection
  • With the A320 you only get partial spoiler deflection

[ FCOM-DSC-27-10-20 ]

47
Q

Q47 | AFT PEDESTIAL MISC

What happens if you turn the Rudder Trim with the autopilot engaged?

[ FCOM-DSC-27-10-20 ]

A

Nothing

[ FCOM-DSC-27-10-20 ]

48
Q

Q48 | AFT PEDESTIAL MISC

Does the rudder RESET button work with the autopilot engaged?

[ FCOM-DSC-27-10-20 ]

A

No

[ FCOM-DSC-27-10-20 ]

49
Q

Q49 | FLIGHT CONTROL LAWS

How does the High Speed Protection operate?

[ FCOM-DSC-27-20-10-20 ]

A

If Vmo/Mmo plus a predetermined factor is exceeded, the system induces a pitch-up input to limit aircraft
speed

[ FCOM-DSC-27-20-10-20 ]

50
Q

Q50 | FLIGHT CONTROL LAWS

Can the pilot override the auto pitch-up associated with High Speed Protection in Normal Law?

[ FCOM-DSC-27-20-10-20 ]

A

No

[ FCOM-DSC-27-20-10-20 ]

51
Q

Q51 | FLIGHT CONTROL LAWS

What is Alpha Max?
And how is it indicated?

[ FCOM-DSC-27-20-10-20 ]

A
  • The maximum angle of attack allowed in Normal Law
  • Indicated by the top of the red strip on the airspeed scale

[ FCOM-DSC-27-20-10-20 ]

52
Q

Q52 | FLIGHT CONTROL LAWS

How does High Angle of Attack Protection operate?

[ FCOM-DSC-27-20-10-20 ]

A

When the angle of attack exceeds Alpha Protection, pitch trim ceases and angle of attack is now proportional to sidestick deflection, not to exceed Alpha Max even with full aft sidestick deflection

[ FCOM-DSC-27-20-10-20 ]

53
Q

Q53 | FLIGHT CONTROL LAWS

What protection do you have in Alternate Law?

[ FCOM-DSC-27-20-20 ]

A
  • Load Factor
  • High speed stability (Nose up command) but can be overridden
  • Low speed stability (Nose down command) but can be overridden

[ FCOM-DSC-27-20-20 ]

54
Q

Q54 | FLIGHT CONTROL LAWS

Can you override the high speed stability in Alternate Law?

[ FCOM-DSC-27-20-20 ]

A

Yes

[ FCOM-DSC-27-20-20 ]

55
Q

Q55 | FLIGHT CONTROL LAWS

What protections do you have in Direct Law?

[ FCOM-DSC-27-20-20 ]

A

None

[ FCOM-DSC-27-20-20 ]

56
Q

Q56 | FLIGHT CONTROL LAWS

If you are in Pitch Alternate Law, what law would Roll be?

[ FCOM-DSC-27-20-20 ]

A

Direct Law

[ FCOM-DSC-27-20-20 ]

57
Q

Q57 | FLIGHT CONTROL LAWS

When is there a direct relationship between sidestick and flight control surface deflection?

[ FCOM-DSC-27-20-10-20, FCOM-DSC-27-20-20 ]

A
  • When in Normal Law, Ground Mode
  • When in Direct Law
  • When below 50 feet in Flare Mode (pitch only)

[ FCOM-DSC-27-20-10-20, FCOM-DSC-27-20-20 ]

58
Q

Q58 | FLIGHT CONTROL LAWS

How would you get into Abnormal Attitude Law?

[ FCOM-DSC-27-20-20 ]

A

By exceeding approximately double the Normal Law limits

[ FCOM-DSC-27-20-20 ]

59
Q

Q59 | FLIGHT CONTROL LAWS

What is the purpose of Abnormal Attitude Law?

[ FCOM-DSC-27-20-20 ]

A

Allows the aircraft to be recovered from an unusual attitude

[ FCOM-DSC-27-20-20 ]

60
Q

Q60 | FLIGHT CONTROL LAWS

After recovery from an unusual attitude, what law will you be in?

[ FCOM-DSC-27-20-20 ]

A

When aircraft returns within normal flight envelope, the abnormal attitude law disengages and aircraft remains in alternate law with reduced protection for the remainder of the flight

[ FCOM-DSC-27-20-20 ]

61
Q

Q61 | FLIGHT CONTROL LAWS

What PFD indications indicate Normal Law?

[ FCOM-DSC-27-20-20 ]

A
  • Green “=” for pitch, bank, and overspeed limits
  • Amber/black (alpha protection) airspeed tape

[ FCOM-DSC-27-20-20 ]

62
Q

Q62 | FLIGHT CONTROL LAWS

What is indicated if the PFD pitch and bank limits are amber X’s?

[ FCOM-DSC-27-20-20 ]

A

You are not in Normal Law

[ FCOM-DSC-27-20-20 ]

63
Q

Q63 | FLIGHT CONTROL LAWS

What would cause you to revert to another law?

[ FCOM-DSC-27-20-20 ]

A

Multiple failures of redundant systems

[ FCOM-DSC-27-20-20 ]

64
Q

Q64 | FLIGHT CONTROL LAWS

What law are you in when you perform the flight control check on the ground?

[ FCOM-DSC-27-20-10-20 ]

A

Normal Law, Ground Mode

[ FCOM-DSC-27-20-10-20 ]

65
Q

Q65 | FLIGHT CONTROL LAWS

Can the aircraft be flown with a loss of all flight control computers?

[ FCOM-DSC-27-20-20 ]

A

Yes, in Mechanical Backup

[ FCOM-DSC-27-20-20 ]

66
Q

Q66 | FLIGHT CONTROL LAWS

How is the airplane controlled in Mechanical Backup?

[ FCOM-DSC-27-20-20 ]

A
  • Pitch – Trim wheel (horizontal stabilizer)
  • Yaw – Rudder pedals (rudder)
  • Speed – Thrust levers

[ FCOM-DSC-27-20-20 ]

Allegiant A320 Systems (2024) (18 decks)

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