Auto Flight Flashcards

1
Q

❇️FMGC 1 generates commands for:

A

▪ Autopilot 1.
▪ Captain’s Flight Director.
▪ Autothrust

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2
Q

❇️FMGC2 generates commands for:

A

▪ Autopilot 2.
▪ First Officer’s Flight Director.
▪ Autothrust

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3
Q

❇️With autopilots off which FMGC is the master and which one is the backup?

A

FMGC 1 is the master and FMGC 2 the backup

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4
Q

With autopilot 1 engaged which FMGC is the master and which one is the backup?

A

FMGC 1 is the master and FMGC 2 is the backup

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5
Q

With autopilot 2 engaged, which FMGC is the master and which one is the backup?

A

FMGC 2 is the master and FMGC 1 is the backup.

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6
Q

Recall the function of the Flight Mode Annunciator (FMA).

A

Recall the function of the Flight Mode Annunciator (FMA).

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7
Q

Recall the organization of the Flight Mode Annunciator (FMA)

A
▪ Column 1: autothrust system 
▪ Column 2: autoflight vertical mode 
▪ Column 3: autoflight lateral mode 
▪ Column 4: approach capabilities and minimums 
▪ Column 5: autoflight status
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8
Q

Explain the color convention of FMA annunciations.

A

▪ Green – engaged mode
▪ Blue – armed mode
▪ Magenta – altitude constraints (if vertical path includes a level segment).
▪ White – approach capabilities, certain autothrust modes, and autoflight system status.
▪ Amber – thrust and/or flight control system caution messages.
▪ Red – significant flight control system degradation.

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9
Q

Recall how to engage the autopilot.

A

▪ To engage – select either the AP1 or AP2 pbs on the Flight Control Unit (FCU).

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10
Q

Recall how to disengage the autopilot.

A

▪ To disengage:
• Pressing the autopilot disconnect pb on either sidestick (preferred method).
• Selecting the illuminated AP1or AP2 pb on the FCU.
• Displacing either sidesticks or rudder pedals.

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11
Q

Recall the various autopilot related indications displayed on the top line of column 5 of the FMA.

A

▪ With autopilot disengaged - line 1 will be blank.
▪ Autopilot 1 engaged: AP1
▪ Autopilot 2 engaged: AP2
▪ Both Autopilots engaged: AP1+2

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12
Q

Recall how to engage and disengage the flight directors.

A

▪ The Flight Director system is automatically engaged (powered) when electrical power is established on the aircraft.
▪ A respective FD pb, located on each Electronic Flight Instrument System (EFIS) control panel can be used to manually engage or disengage its respective FD.
▪ A green light within the pb indicates that the respective FD is engaged.

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13
Q

Recall the various Flight Director related indications on the second line of column 5 of the FMA.

A

▪ Both Flight Directors OFF: the second line will be blank.
▪ Both Flight Directors ON: 1FD2 will be displayed.
▪ CA’s Flight Director selected OFF, FO’s is ON: -FD2 will be displayed.
▪ FO’s Flight Director selected OFF, CA’s is ON: 1FD- will be displayed.
▪ If FMGC 1 has failed: 2FD2 is displayed.
▪ If FMGC 2 has failed: 1FD1 is displayed.

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14
Q

Explain how the Autothrust System is engaged?

A

▪ Engaged:
❇️The system is normally engaged at takeoff, when the thrust levers are placed in either the FLX or TOGA positions.
❇️By selecting the A/THR pb located on the FCU.

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15
Q

Explain how the Autothrust System disengaged?

A

▪ Disengaged:
❇️The system is normally disengaged by bringing the thrust levers to the idle stop at touch down.
❇️Pressing the Instinctive Disconnect pb on either thrust lever.
❇️Pressing the illuminated A/THR pb on the FCU panel.

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16
Q

Explain the two operating modes of the autothrust system.

Thrust Mode:

A

▪ A specific thrust level is maintained, and the target airspeed is achieved through pitch changes.
▪ Used most often during climbs and descents when no specific rate is required.

17
Q

Explain the two operating modes of the autothrust system.

Speed/Mach Mode:

A

▪ Thrust output varies to maintain the target airspeed or mach.
▪ Used most often during level flight, or during climbs/descents when a specific rate must be maintain

18
Q

Recall the FMA column 1 indications when in Thrust mode and when in Speed/Mach mode.

A

Thrust Mode:

▪ MAN TOGA, MAN FLX, MCT, THR CLB, THR IDLE

19
Q

Recall the FMA column 1 indications when in Speed/Mach mode?

A

Speed/Mach Mode:

▪ SPEED or MACH

20
Q

Recall the Autothrust System’s default operating mode with Autopilots and Flight Directors off.

A

Defaults to Speed/Mach Mode.

21
Q

Explain the Autothrust System’s Alpha Floor feature.

A

Automatically commands TOGA thrust when a predetermined angle of attack has been exceeded.
❇️Is available from lift-off down to 100ft RA.
❇️Functions regardless of thrust lever position or autothrust status.
• If off, autothrust will self-activate.
• Aircraft must be in Normal Law with a functional autothrust system. Once the condition causing Alpha Floor is resolved, thrust remains at TOGA (TOGA LK) until pilot intervention

22
Q

Explain VLS?

A

▪ VLS is defined as the “Lowest Selectable Speed”. It is an airspeed calculated by the FACs based on aircraft gross weight and configuration. ▪ It is intended to advise the pilot of the lowest airspeed that should be selected in the current configuration.

NOTE: The pilot can select an airspeed below VLS.

23
Q

Describe where VLS is displayed.

A

▪ VLS is displayed on the airspeed indicator in the form of an amber hook. It is displayed regardless of Flight Control Law or the status of autothrust.

NOTE: The position of the amber hook is not fixed and will adjust as the result of changes to aircraft’s configuration (Flaps, Spoilers, Landing Gear).

24
Q

Explain the relationship between VLS and the Autothrust System.

A

▪ When autothrust is active and the aircraft is in Normal Law, thrust will automatically increase to prevent the airspeed from decreasing below VLS.
▪ The pilot selected airspeed, if lower than VLS, will be ignored. NOTE: Unlike ALPHA Floor protection, autothrust will not self-activate, if OFF, to provide lowest safe speed protection.

25
Q

Explain what a momentary flashing white box indicates within an FMA column.

A

It indicates a new annunciation/display in that particular column.

NOTE: In addition to a white box, a triple click aural warning is provided whenever there is an automatic disengagement of a managed Lateral or Vertical mode of the FMGS. This is referred to as a “Mode Reversion”.

26
Q

Recall when SRS becomes active.

A

▪ At takeoff when thrust levers are placed in FLX or TOGA.

▪ During a go-around when the thrust levers are placed in TOGA and Flaps 1 or greater has been selected.