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Airbus G4 Oral Prep (LB) > 2025 05 ACTS: Autoflight > Flashcards

2025 05 ACTS: Autoflight Flashcards

(50 cards)

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1
Q

MCDU / FMGS:
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

MCDU / FMGS:
What are the functions of the Flight Management Guidance Computers?
FCOM-DSC-22-10-10

A

º Flight Guidance
º Flight Management

º Flight Management

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3
Q

MCDU / FMGS:
What are the 4 modes of FMGS 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)
º Backup Navigation mode (some aircraft)

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4
Q

MCDU / FMGS:
What are the 2 modes of flight guidance?
FCOM-DSC-22-30-10

A

º Managed Guidance
º Selected Guidance

º Selected Guidance

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5
Q

MCDU / FMGS:
What is the MANAGED mode of flight guidance used for?
FCOM-DSC-22-30-10

A

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

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6
Q

MCDU / FMGS:
What is the SELECTED mode of flight guidance used for?
FCOM-DSC-22-30-10

A

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

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7
Q

MCDU / FMGS:
Does Selected or Managed Guidance have priority?
FCOM-DSC-22-10-10

A

Selected Guidance always has priority

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8
Q

MCDU / FMGS:
How do you determine the validity of the navigation database?
FCOM-DSC-22-20-20-50

A

On the Aircraft Status page via the MCDU

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9
Q

MCDU / FMGS:
What input does each FMGC use for position determination?
FCOM-DSC-22-20-20-10

A

A hybrid (“mix”) IRS/GPS position

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10
Q

MCDU / FMGS:
How does autopilot selection influence master FMGS logic?
FCOM-DSC-22-10-30

A

º If one autopilot is engaged, the respective FMGC is master
º If both a/p engaged, FMGC 1 is master

º If both autopilots are engaged, FMGS 1 will be the master

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11
Q

MCDU / FMGS:
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

both NDs must be set to the same mode and range (single mode) because an FMGC has failed.

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12
Q

MCDU / FMGS:
Can both autopilots be engaged during any phase of flight?
FCOM-DSC-22-30-30

A

No, only during an ILS approach

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13
Q

MCDU / FMGS:
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

º Small – Default/computed non-modifiable data

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14
Q

MCDU / FMGS:
Where do you enter the Zero Fuel Weight?
FCOM-DSC-22-20-50-10-25

A

INIT B page (not accessible after engine start)
note: later must go to fuel page.

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15
Q

MCDU / FMGS:
What do amber box prompts on the MCDU indicate?
FCOM-DSC-22-10-40-10

A

An entry is mandatory

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16
Q

MCDU / FMGS:
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

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

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17
Q

MCDU / FMGS:
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

MCDU / FMGS:
What do dashes in the FCU display windows along with the adjacent white dot indicate?
FCOM-DSC-22-10-40-20

A

FMGS Managed Guidance is in use

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19
Q

MCDU / FMGS:
How is Selected Guidance engaged?
FCOM-DSC-22-10-40-20

A

Pull the appropriate selector knob

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20
Q

MCDU / FMGS:
How do you confirm all autopilot, FD, and A/THR inputs?
FCOM-DSC-22-30-100

A

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

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21
Q

MCDU / FMGS:
Will the FCU Altitude window ever display dashes?
FCOM-DSC-22-10-40-20

Study These Flashcards
A

No. Pilot selected altitude will always be displayed

22
Q

Primary Flight Display:
What does each column mean on the PFD?
FCOM-DSC-22-30-100

Study These Flashcards
A

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

23
Q

Primary Flight Display:
How is the crew made aware of mode changes on the FMA?
FCOM-DSC-22-30-100

Study These Flashcards
A

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

24
Q

Primary Flight Display:
How are armed modes displayed on the FMA? constraint? engaged?
FCOM-DSC-22-30-100

Study These Flashcards
A

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

25
Primary Flight Display: When is the side stick position indication icon (white cross) displayed? FCOM-DSC-20-30
º Displayed when the first engine is started º disappears at liftoff
26
Primary Flight Display: What would the large red arrowheads indicate? FCOM-DSC-31-40
Pitch attitude of > 30°
27
Primary Flight Display: What is the meaning of USE MANUAL PITCH TRIM? FCOM-DSC-27-20-20
You are in Direct Law
28
Primary Flight Display: What is the meaning of MAN PITCH TRIM ONLY? FCOM-DSC-27-20-20
You are in Mechanical Backup
29
Primary Flight Display: What are the pitch and roll angle limits indicated by the green = signs? FCOM-DSC-31-40, FCOM-DSC-27-20-10-30
º Pitch: +30° up/-15° down º Roll: 67º
30
Primary Flight Display: How can you determine you are in Alternate Law? FCOM-DSC-27-20-20
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
Primary Flight Display: | When would the sideslip index change from yellow to blue? [ FCOM-DSC-31-40
In case of an engine failure during takeoff/go-around, it is now a blue beta target º Sideslip target is blue if config 1, 2, or 3 is selected and any eng N1 >80% or 1 thrust lever is >MCT and difference between engine N1s exceeds 35%
32
Primary Flight Display: What does the yellow speed trend line on the airspeed display indicate? FCOM-DSC-31-40
The speed the aircraft will reach in 10 seconds if acceleration/deceleration remains constant
33
Primary Flight Display: What is the difference between the magenta and blue target airspeeds? FCOM-DSC-31-40
º Magenta – MANAGED speed computed by the FMGC º Blue – SELECTED speed on the FCU
34
Primary Flight Display: What speed does Vmax represent and how is it displayed? FCOM-DSC-31-40, FCOM-PRO-SUP-10
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
Primary Flight Display: What is Vls? FCOM-DSC-31-40, FCOM-DSC-22-10-50-20, FCOM-PRO-SUP-10
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
Primary Flight Display: What is Green Dot speed? FCOM-DSC-31-40, FCOM-PRO-SUP-10
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
Primary Flight Display: What is Ground Speed Mini? FCOM-DSC-22-30-90
º Based on a calculated groundspeed at the runway º Protects against actual groundspeed dropping below this calculated groundspeed
38
Primary Flight Display: What does it mean when you see the magenta target airspeed triangle above VAPP on approach? FCOM-DSC-22-30-90
Ground Speed Mini has increased speed due to a higher headwind component at your present location than what was calculated at the runway
39
Primary Flight Display: Is this ground speed mini protection available in selected speed? FCOM-DSC-22-30-90
No. Managed speed only
40
Primary Flight Display: What are 3 ways to disconnect the A/THR? FCOM-DSC-22-30-90
º Instinctive Disconnect buttons º Thrust Levers to IDLE º A/THR pushbutton
41
Primary Flight Display: How do you disconnect the A/THR for the remainder of the flight? FCOM-DSC-22-30-90
Press and hold the Instinctive Disconnect Pushbutton for 15 seconds
42
Primary Flight Display: What would you lose if you held down the Instinctive Disconnect Pushbutton for more that 15 seconds? FCOM-DSC-22-30-90
Alpha Floor Protection
43
Primary Flight Display: What happens to thrust and what annunciates on the FMA when you reach Alpha Floor? FCOM-DSC-22-30-90
º FMA shows A.FLOOR º Thrust goes to TOGA
44
Primary Flight Display: What occurs during Alpha Floor protection after the alpha floor condition is no longer applicable? (or speed increases above Vls?) FCOM-DSC-22-30-90
FMA changes to TOGA LK
45
Primary Flight Display: How do you regain normal A/THR when in TOGA LK? FCOM-DSC-22-30-90
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
Primary Flight Display: When is Alpha Floor Protection active? FCOM-DSC-22-30-90
From lift-off through 100 feet RA on approach
47
Primary Flight Display: When would Thrust Lock occur? FCOM-DSC-22-30-90
º Thrust levers in CL detent and A/THR pushbutton on the FCU is pushed, or º A/THR disconnects due to a failure º If Alpha Floor had been experienced and speed is above Vls.
48
When is Ground Speed Mini active?
Speed is managed and FMS flight phase is approach.
49
What are the benefits of Ground Speed Mini?
-Calculated ground speed at the runway. -Protects against actual ground speed dropping below calculated groundspeed.
50
Does Ground Speed mini correct green dot S and F speeds?
No. Only Vapp

Airbus G4 Oral Prep (LB) (28 decks)

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