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Systems Questions > AUTO FLIGHT > Flashcards

AUTO FLIGHT Flashcards

1
Q

1 | What are the main components of the FMGS? [ FCOM-DSC-22-10-10 ]

A

º 2 FMGCs
º 2 MCDUs
º 1 FCU (two independent channels)
º 2 FACs

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2
Q

2 | What are the functions of the Flight Management Guidance Computers? [ FCOM-DSC-22-10-10 ]

A

º Flight Guidance
º Flight Management

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3
Q

3 | What are the 3 modes of FMGC operation? [ FCOM-DSC-22-10-30 ]

A

º Independent (MCDU scratchpad displays – INDEPENDENT OPERATION)
º Single (ND displays – SELECT OFFSIDE RNG/MODE)
º Dual (Normal)

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4
Q

4 | What are the 2 modes of flight guidance? [ FCOM-DSC-22-30-10 ]

A

º Managed Guidance
º Selected Guidance

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5
Q

5 | What is the Managed mode of flight guidance used for? [ FCOM-DSC-22-30-10 ]

A

º Long-term lateral, vertical, and speed profiles as determined by the FMGS

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6
Q

6 | What is the Selected mode of flight guidance used for? [ FCOM-DSC-22-30-10 ]

A

º Temporary lateral, vertical, and speed commands as selected with the FCU

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7
Q

7 | Does Selected or Managed Guidance have priority? [ FCOM-DSC-22-10-10 ]

A

º Selected Guidance always has priority

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8
Q

8 | How do you determine the validity of the navigation database? [ FCOM-DSC-22-20-20-50 ]

A

º On the Aircraft Status page via the MCDU

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9
Q

9 | What input does each FMGC use for position determination? [ FCOM-DSC-22-20-20-10 ]

A

º A hybrid (“mix”) IRS/GPS position

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10
Q

10 |How does autopilot selection influence master FMGS logic? [ FCOM-DSC-22-10-30 ]

A

º If one autopilot is engaged, the respective FMGS is master
º If both autopilots are engaged, FMGS 1 will be the master

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11
Q

11 |If an amber SELECT OFFSIDE RNG/MODE message is displayed on the ND what action should the crew take?
[ FCOM-DSC-22-10-30 ]

A

º An FMGS has failed and both NDs must be set to the same mode and range (single mode)

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12
Q

12 |Can both autopilots be engaged during any phase of flight? [ FCOM-DSC-22-30-30 ]

A

º No, only during an ILS approach

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13
Q

13 |What is the difference between the large and small fonts utilized in the MCDU? [ FCOM-DSC-22-10-40-10 ]

A

º Large – Pilot entries and modifiable data
º Small – Default/computed non-modifiable data

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14
Q

14 |Where do you enter the Zero Fuel Weight? [ FCOM-DSC-22-20-50-10-25 ]

A

º INIT B page (not accessible after engine start)

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15
Q

15 |What do amber box prompts on the MCDU indicate? [ FCOM-DSC-22-10-40-10 ]

A

º An entry is mandatory

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16
Q

16 |What occurs when managed NAV mode is engaged and the aircraft flies into a flight plan discontinuity?
[ FCOM-DSC-22-20-30-10-05 ]

A

º NAV mode will be lost and the HDG/TRK mode engage

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17
Q

17 |What is the function of the Flight Control Unit? [ FCOM-DSC-22-10-10 ]

A

º Permits short term interface between the pilot and FMGS
º Allows temporary modification of any flight parameter (HDG, SPD, ALT, V/S)
º Used to select operational modes of the autopilots, flight directors, and A/THR system

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18
Q

18 |What do dashes in the FCU display windows along with the adjacent white dot indicate? [ FCOM-DSC-22-10-40-20 ]

A

º FMGS Managed Guidance is in use

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19
Q

19 |How is Selected Guidance engaged? [ FCOM-DSC-22-10-40-20 ]

A

º Pull the appropriate selector knob

20
Q

20 |How do you confirm all autopilot, FD, and A/THR inputs? [ FCOM-DSC-22-30-100 ]

A

º Confirm all mode inputs by reference to the Flight Mode Annunciator (FMA)

21
Q

21 |Will the FCU Altitude window ever display dashes? [ FCOM-DSC-22-10-40-20 ]

A

º No. Pilot selected altitude will always be displayed

22
Q

22 |What does each column mean on the PFD? [ FCOM-DSC-22-30-100 ]

A

º A/THR | VERTICAL | LATERAL | APPROACH CAPABILITY, DH/MDA | AP, FD, A/THR ENGAGEMENT STATUS

23
Q

23 |How is the crew made aware of mode changes on the FMA? [ FCOM-DSC-22-30-100 ]

A

º A white box is temporarily displayed around the new indication (10-15secs)

24
Q

24 |How are armed modes displayed on the FMA? [ FCOM-DSC-22-30-100 ]

A

º Blue – armed
º Magenta – armed because of a constraint
º Green – engaged

25
Q

25 |When is the side stick position indication icon (white cross) displayed? [ FCOM-DSC-20-30 ]

A

º Displayed when the first engine is started
º Disappears at liftoff

26
Q

26 |What would the large red arrowheads indicate? [ FCOM-DSC-31-40 ]

A

º Pitch attitude of > 30°

27
Q

27 |What is the meaning of USE MANUAL PITCH TRIM? [ FCOM-DSC-27-20-20 ]

A

º You are in Direct Law

28
Q

28 |What is the meaning of MAN PITCH TRIM ONLY? [ FCOM-DSC-27-20-20 ]

A

º You are in Mechanical Backup

29
Q

29 |What are the pitch and roll angle limits indicated by the green = signs? [ FCOM-DSC-31-40, FCOM-DSC-27-20-10-30 ]

A

º Pitch: +30° up/-15° down
º Roll: +/- 67°

30
Q

30 |How can you determine you are in Alternate Law? [ FCOM-DSC-27-20-20 ]

A

º Amber X’s replace the green = marks at the pitch and bank limits
º Only VLS and VSW is displayed on the airspeed scale

31
Q

31 |When would the sideslip index change from yellow to blue? [ FCOM-DSC-31-40 ]

A

º In case of an engine failure during takeoff/go-around, it is now a blue beta target

32
Q

32 |What does the yellow speed trend line on the airspeed display indicate? [ FCOM-DSC-31-40 ]

A

º The speed the aircraft will reach in 10 seconds if acceleration/deceleration remains constant

33
Q

33 |What is the difference between the magenta and blue target airspeeds? [ FCOM-DSC-31-40 ]

A

º Magenta – Managed speed computed by the FMGC
º Blue – Selected speed on the FCU

34
Q

34 |What speed does Vmax represent and how is it displayed? [ FCOM-DSC-31-40, FCOM-PRO-SUP-10 ]

A

º It is the lowest of Vmo/Mmo, Vle, or Vfe
º Defined by the bottom of a red and black strip along the speed scale

35
Q

35 |What is Vls? [ FCOM-DSC-31-40, FCOM-DSC-22-10-50-20, FCOM-PRO-SUP-10 ]

A

º Represents lowest selectable speed providing an appropriate margin to the stall speed
º Corresponds to 1.13 VS during takeoff
º Corresponds to 1.23 VS after retraction of one step of flaps
º Corresponds to 1.28 VS in clean configuration
º Above 20,000ft, VLS is corrected for Mach effect to maintain a buffet margin of 0.2g
º In approach mode is equivalent to Vref
º Increases with speedbrake extension

36
Q

36 |What is Green Dot speed? [ FCOM-DSC-31-40, FCOM-PRO-SUP-10 ]

A

º Engine out operating speed in clean configuration
º Appears when the aircraft is in the clean configuration
º Corresponds to the best lift-to-drag ratio

37
Q

37 |What is Ground Speed Mini? [ FCOM-DSC-22-30-90 ]

A

º Based on a calculated groundspeed at the runway
º Protects against actual groundspeed dropping below this calculated groundspeed

38
Q

38 |What does it mean when you see the magenta target airspeed triangle above VAPP on approach?
[ FCOM-DSC-22-30-90 ]

A

º Ground Speed Mini has increased speed due to a higher headwind component at your present location than what was calculated at the runway

39
Q

39 |Is this protection available in selected speed? [ FCOM-DSC-22-30-90 ]

A

º No – Managed speed only

40
Q

40 |What are 3 ways to disconnect the A/THR? [ FCOM-DSC-22-30-90 ]

A

º Instinctive Disconnect buttons
º Thrust Levers to IDLE
º A/THR pushbutton

41
Q

41 |How do you disconnect the A/THR for the remainder of the flight? [ FCOM-DSC-22-30-90 ]

A

º Press and hold the Instinctive Disconnect Pushbutton for 15 seconds

42
Q

42 |What would you lose if you held down the Instinctive Disconnect Pushbutton for more that 15 seconds?
[ FCOM-DSC-22-30-90 ]

A

º Alpha Floor Protection

43
Q

43 |What happens to thrust and what annunciates on the FMA when you reach Alpha Floor? [ FCOM-DSC-22-30-90 ]

A

º Thrust – TOGA
º FMA – A.FLOOR

44
Q

44 |What occurs during Alpha Floor protection after speed increases above Vls? [ FCOM-DSC-22-30-90 ]

A

º FMA changes to TOGA LK

45
Q

45 |How do you regain normal A/THR when in TOGA LK? [ FCOM-DSC-22-30-90 ]

A

º Move Thrust Levers to the TOGA detent
º Press the Instinctive Disconnect button
º Return Thrust Levers to CL detent
º Push the A/THR pushbutton to engage A/THR

46
Q

46 |When is Alpha Floor Protection active? [ FCOM-DSC-22-30-90 ]

A

º From lift-off through 100 feet RA on approach

47
Q

47 |When would Thrust Lock occur? [ FCOM-DSC-22-30-90 ]

A

º Thrust levers in CL detent and A/THR pushbutton on the FCU is pushed, or
º A/THR disconnects due to a failure

Systems Questions (19 decks)

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