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EMB > Autoland > Flashcards

Autoland Flashcards

1
Q

How many frequencies does an ILS ground system work on?

A

2

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2
Q

What kind of frequency is used for the localiser?

A

VHF or metric

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3
Q

What kind of frequency is used for the glide-slope?

A

UHF or decimetric

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4
Q

How is the approach started?

A

With HDG SEL or LNAV engaged on an intercept course for the localiser

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5
Q

What is required before APP can be selected?

A

One Nav receiver must be selected to an ILS frequency or if a DUAL approach both receivers must be tuned

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6
Q

What happens after APP is selected on the MCP?

A

VOR LOC and G/S show in white as armed on the FMA

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7
Q

What can be done once APP has been selected?

A

The second autopilot can be selected.

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8
Q

If a second autopilot is selected when will it engage?

A

When the glideslope and localiser are captured and the aircraft is below 1500ft

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9
Q

What does the PFD display before the second autopilot is engaged?

A

SINGLE CH

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10
Q

What does the PFD display after the second autopilot is engaged?

A

CMD

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11
Q

When is the autoland status display frozen?

A

Below 200ft RA, except that NO AUTOLAND may illuminate

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12
Q

What is the name given to an autopilot system with 3 autopilots where one might be voted out if it fails?

A

A fail operational or fail active system.

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13
Q

What will happen in a system with two autopilots if one of them fails on an automatic ILS approach?

A

Both autopilots will disengage and the aircraft will be left in a trimmed state. Know as fail passive

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14
Q

How can a two autopilot system be made “fail operational”?

A

By adding an external monitoring and comparisons system which can identify and disconnect the failed autopilot.

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15
Q

What must be done after a “fail passive” autoland?

A

Autoland must be discontinued and the manual landing carried out

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16
Q

What is a typical vale for alert height?

A

200ft

17
Q

By what level do additional autopilots have to be engaged?

A

800ft RA

18
Q

At what level will the localiser and glideslope be captured by?

A

1500ft

19
Q

What happens in the autoland profile at 200ft RA?

A

The longitudinal aircraft axis is lined up with the runway centerline, holding drift with rudder and aileron.

20
Q

At what level does FLARE mode take over?

A

50-45 ft RA

21
Q

What happens at 5ft in the autoland profile?

A

touchdown and ROLLOUT profile is engaged to reduce pitch attitude. GA is disabled.

22
Q

How is reverse thrust selected?

A

Manually

23
Q

What level is the glideslope mode disconnected?

A

45ft radio height

24
Q

What code is denotes autoland facilities?

A

CAT III

25
Q

What is a semi-automatic approach?

A

Autopilot down to decision height then manual

26
Q

When is Go Around mode armed?

A

On the capture of the glideslope

27
Q

How is GA mode engaged?

A

By pressing the TOGA switches on the throttle.

EMB (8 decks)

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