Autoflight General DSC 22-10 Flashcards

1
Q

The FMGC is divided into 2 main parts.

The Flight Management (FM) part controls….?

A
  • Navigation and management of navigation radios
  • Management of flight planning
  • Prediction and Optimisation of Performance
  • Display Management
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The FMGC is divided into 2 main parts.

The Flight Guidance (FG) part performs….?

A
  • Autopilot command
  • Flight Director command
  • Autothrust command
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How long does an FMGC database update take to complete

A

20mins, or

5mins if cross loaded from the opposite FMGC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The FAC controls….?

A

Rudder
Rudder Trim, and
Yaw Damper inputs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The FAC computes data for…..?

A

Flight Envelope, and

Speed functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The FAC provides warning for…..?

A

Low Energy, and

Windshear detection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The Thrust Levers….?

A
  • Arm the autothrust at takeoff when FLX or TOGA selected
  • Limit the max thrust by their position when autothrust is active
  • Disconnect ATS when thrust levers IDLE
  • Command thrust manually when ATS not active
  • Engage common modes when TOGA (FLX) is set
  • Set ATS active when thrust levers between IDLE and CL (MCT in engine out)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

If one AP is engaged, which FMGC is master?

A

The related FMGC is master.

  • It uses the onside FD for guidance
  • It controls the A/THR
  • It controls the FMA 1 + 2
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

If two AP’s are engaged, which FMGC is master?

A

FMGC 1 is master

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

If no AP is engaged and FD1 pb is ON, which FMGC is master?

A

FMGC 1 is master

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If no AP is engaged and FD1 pb is OFF and FD 2 pb is ON, which FMGC is master?

A

FMGC 2 is master

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If no AP is engaged, A/THR is controlled by…?

A

FMGC 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What abnormal condition would cause an INDEPENDENT OPERATION message on both MCDU scratchpads?

A
  • Different database validity on both FMGC’s
  • 5 (3 YUD) resynchronisations in 5mins

Amber IND annunciator at top of MCDU keyboard

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

WHen is single FMGC mode automatically selected?

A

when 1 FMGC fails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the indications of a single FMGC failure?

A

On MCDU:
“OPP FMGC IN PROCESS” in scratchpad
FM1/2 amber annunciator

On ND
“MAP NOT AVAIL”, “SET OFFSIDE RNG/MODE”
or
“OFFSIDE FM CONTROL if rng/mode same

When convenient reset failed FMGC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Is there a reset for a failed FMGC?

A

Yes.
FCOM 22 20-90-10 FMGC RESET
QRH ABN RESET AUTO FLT FMGC

17
Q

For how many seconds does the following display the selected value in the FCU window:

a) SPD/MACH?
b) HDG/TRK?
c) VS?

A

a) SPD/MACH -10 secs
b) HDG/TRK -45 secs
c) VS -45 secs

18
Q

The characteristic speeds displayed by the PFD are computed by the…..?

A

FAC’s

19
Q

All operating speeds are referenced to which speed?

A

VS1g

20
Q

V2 =

A

1.13 VS1g

21
Q

VREF =

A

1.23 VS1g of Conf FULL

22
Q

VLS is computed by the…?

A

FAC’s

23
Q

VLS =

a) during take-off?
b) after retraction of 1 step of flaps
c) clean config

A

a) during take-off -1.13 VS1g
b) after retraction of 1 step of flaps -1.23 VS1g
c) clean config -1.28 VS1g

24
Q

FCOM also refers to VS1g as….?

A

VS

25
Q

Above 20000ft, VLS is corrected for Mach effect to maintain a buffet margin of…?

A

0.2g

26
Q

What effect does extending speedbrake have on VLS?

A

VLS increases

27
Q

Green Dot Speed is….?

A

Best Lift Drag Ratio
Engine Out operating speed Clean Config
Final Take-off speed

28
Q

How do you calculate Green Dot speed:

a) Below 20000ft?
b) Above 20000ft?

A

a) Below 20000ft
2 x GW plus 80kts

b) Above 20000ft
add 1kt per 1000ft

29
Q

What calculates VaPROT, VaMAX and VSW?

A

The FAC

30
Q

VaPROT, VaMAX and VSW as computed by the FAC are used for….?

A

Display on the PFD

NOT for flight Control Protection

31
Q

Activation of flight control protections is computed by the…?

A

ELAC

32
Q

VMAX is determined by…?

A

The FAC

33
Q

VAPP is calculated by the….?

A

FMGC’s

34
Q

VAPP =

A

VLS + wind correction

35
Q

Wind correction is limited to …?

A

Min 5 kts

Max 15 kts

36
Q

During Autoland, or
When A/THR is ON, or
in case of ice accretion, or
gusty crosswind >20kts

VAPP must not be lower than…?

A

VLS +5 kts