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7 > Autoflight > Flashcards

Autoflight Flashcards

1
Q

The Autoflight system consists of the:

A

Flight directors, the auto throttle & the auto pilots

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2
Q

Flight Directors & Auto throttle can be used in ?

A

All phases of flight

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3
Q

When you engage the auto pilot, you engage all …….. auto pilots

A

3

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4
Q

The auto flight system through the….

A

Mode control panel (MCP)

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5
Q

Auto flight modes are displayed as ?

A

FMA’s on top of the PFD

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6
Q

What are the two auto flight modes?

A

LNAV & VNAV

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7
Q

When using LNAV & VNAV, the FMC & the auto flight system will fly the most ………………… flight profile from climb through descent to your IAF.

A

Economical

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8
Q

‘FLT DIR’ annunciates when the FD is on & the AP is ………….

A

Not engaged

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9
Q

FMA order

A

A/T, roll modes, pitch modes

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10
Q

Is there an annunciation for the auto throttle armed?

A

No, just the position of the A/T Arm switches on the MCP

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11
Q

What does the bank limit switch do?

A

In auto, the bank limit varies between 15 & 25 degrees depending on airspeed.

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12
Q

How do you engage the A/T & AP/FD system in either t/o mode or GA Mode?

A

Pushing either TO/GA switch

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13
Q

The TO/GA switches tell the auto flight system to engage…..

A

The A/T, roll & pitch in the TO/GA mode

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14
Q

When you’ve advanced the thrust levers to 55% N1 & pushed the TO/GA switch to engage the A/T for t/o, the
A/T engages in …………

A

THR REF to advance the thrust levers to t/o thrust (TO, TO1, TO2 as selected)

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15
Q

With thrust reference engaged, moving the thrust levers req’s a ………….. overriding force of the auto throttle servos.

A

Constant.

As soon as the thrust levers are released, the A/T positions the. Back to the selected limit.

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16
Q

At …….. knots, the A/T annunciation changes to ………..

A

80 knots, HOLD

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17
Q

With HOLD annunciated, the A/T servos are ………….. The thrust levers can now be …………… positioned without interference from the A/T

A

Inhibited, manually

18
Q

After lift off, the Flight Director (AFDS) commands a pitch attitude to maintain a target speed …………

A

V2 + 15 or the airspeed at rotation + 15, whichever is higher, up to a maximum of V2 + 25

If the target speed exceeded for more than 5 seconds - Target speed adjusted to new speed not to exceed V2 + 25. (Selected speed & speed bug remain at V2)

19
Q

With LNAV armed, it activates when the airplane is above ………ft radio altitude & within ……… nm of, or on an intercept heading to & approaching, the active route leg

A

50 ft radio altitude,

2.5 nm

20
Q

LNAV mode gives ……….. commands to fly the flight plan route

A

Roll

21
Q

With VNAV armed, it engages at ……….. ft above the runway elevation

A

400 ft

22
Q

When VNAV engages what happens to the IAS/MACH window? Indicating what?

A

The IAS MACH windows blanks, indicating the FMC is now controlling airspeed.

23
Q

Climb scenario - With the selection of FLCH & THR annunciated, the A/T sets thrust based on the req’d altitude change. The A/T will attempt to make the change in …… mins while maintaining the MCP speed

A

2 mins

24
Q

When THR appears as the A/T annunciation, thrust is controlling …………..

When SPD appears with the pitch annunciation, ……….. controls airspeed, so airplane pitch is adjusted to maintain the speed selected in the ………. window.

A

Vertical speed

Pitch

IAS/Mach

25
Q

For descent in FLCH mode, the A/T mode first changes to …….. & adjusts power to get a ….. min descent.

Once the A/T’s have set the descent rate they enter the …….. mode. The pilot can adjust power to change the ROD.

A

THR

2 min

HOLD

26
Q

A/T’s will change from HOLD to another A/T mode when there is an automatic change in the ……….. such as capturing an altitude or, ……………..

A

Pitch mode, when selecting another pitch mode e.g VS

27
Q

If the AP & both FD switches are turned off the A/T mode will be ……….

A

Speed (SPD)

28
Q

Anytime the A/T is in the HOLD mode, the A/T servos are inhibited & ………………..

A

The pilot can set the thrust levers manually

29
Q

HOLD can occur automatically in descent, but NOT in climb unless in …………… & thrust levers are moved to idle

A

FLCH SPD

30
Q

An altitude alert occurs when within ……. feet of the MCP altitude

A

900 ft

31
Q

After level off, an altitude deviation alert occurs ……… ft away from the MCP altitude

A

200 ft

32
Q

An altitude deviation alert clears when either:

A

The airplane returns to within 200 ft of the selected altitude or, descends more than 900 ft from the selected altitude

33
Q

When approaching the MCP altitude, altitude automatically engages, the
A/T engages in ……. & now controls airspeed

A

SPD

34
Q

The annunciation, SPD, indicates what?

A

Which mode is controlling airspeed

35
Q

What happens if ‘ALT HOLD’ is pushed?

A

The a/c initiated a level off to the altitude when the HOLD switch was pushed.

36
Q

How do you engage the heading select?

A

By pushing the heading select switch .

37
Q

Once the track select or heading select is engaged, turning the heading selector to a new heading turns the
a/c ?

A

In the direction the selector knob was turned.

38
Q

If you push the heading/track HOLD switch what happens?

A

The current heading/track is maintained

39
Q

The BANK LIMIT selector only works on …………… modes

A

Heading & track select modes

40
Q

How do you disconnect the auto throttle?

A
  1. Position the A/T arm switches to OFF or,
  2. Push an A/T disconnect switch on the thrust levers (1 on either side).

Either switch disengaged both servos

41
Q

If disconnected by the A/T arm switches, the A/T is no longer armed & ………………

If disconnected by the A/T disconnect switch, the A/T remains …………

A

None of the A/T modes are available.

Armed. Pushing FLCH, VNAV or TO/GA engages the A/T or, by pushing the auto throttle engage switch engages in the mode appropriate to the currently engaged pitch mode.

7 (21 decks)

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