Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Frontier > A320 Navigation And Radar > Flashcards

A320 Navigation And Radar Flashcards

1
Q

FATHAG

A

What do the IR’s do

Flight path vector
AC position
Track
Heading
Attitude
Acceleration
Ground speed

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

BOATS

A

What do the ADR’s do?

Barometric altitude
OAS
Angle of attack
Temperature
Speed

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

How to fast align the IR’s

A

Turn to off for less than 5 seconds and back to nav. Takes about 3 seconds to align.

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

How to normally align the IR’s

A

Switching the IRU mode selector to OFF for more than 5 seconds and then back to NAV

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

What does the ON BAT light mean on the ADIRS?

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

When must a complete alignment be accomplished?

A

Before first flight of the day
Following a crew change
When GPS is not available and NAVAID coverage is poor on the expected route
When GPS is not available and expected flight time exceeds 3 hours
All international and Alaska flights
Flight in class 2 airspace

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

What does the FMGS do to reduce the pilots workload?

A

The flight management and guidance system provides:
Present position
Lateral and vertical navigation
Flight predictions
Navigation auto tune

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What inputs does the FMGS need in order to navigate?

A

-2 flight management and guidance computers
-1 Air data inertial reference system (ADIRS)
-2 radio altimeters
-1 marker beacon receiver
-DME, VOR, and ILS receivers (One ILS receiver is combined with one GPS receiver to from a Multi-Mode receiver (MMR), there are 2 MMR’s on the aircraft)
-Global positioning system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many VOR, DME, and ILS receivers does the A320 have?

A

2 of each

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

How many ADF’s do our A320’s have?

A

None of our NEO aircraft have an ADF receiver. And only of few of our CEO’s have 1.

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

How many frequencies does each of our DME receivers have?

A

5 frequencies. 3 for radio position updating, 1 VOR/DME display, 1 Localizer DME display.

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

How can you see VOR navigation information?

A

By selecting the ROSE knob to VOR. That will pop up a digital HSI on your ND.

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

What’s a Multi-Mode Receiver?

A

An MMR is a combined ILS and GPS receiver.

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

What are the 3 ways to tune radio nav receivers?

A

Auto tuning via the FMGS
Manual tuning via the MCDU RAD NAV page
Manual tuning by using the STBY NAV function on the RADIO MANAGEMENT PANEL’s (RMP’s)

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

What 4 things does FMGS auto tuning provide?

A

Localizer guidance during takeoff
FMS position updating
En route VOR/DME display
Approach guidance

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

What does pressing the guarded NAV button on the RMP do?

A

It enable standby tuning of radio nav frequencies and in doing so disables autotuning.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the components of the Air Data Inertial Reference System (ADIRS)?

A

It’s composed of 3 ADIRU’s or Air Data Inertial Reference Units. Each ADIRU is separated into AIR DATA Reference information (ADR) and Inertial Reference information (IR).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which ADIRU provide captain side info? FO side?

A

ADIRU 1 provides captain side data. 2 provides FO side data. 3 is standby.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does a flashing FAULT light in an IR pushbutton mean?

A

It means that the IRU has lost its present position but attitude and heading may be restored

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does a steady FAULT light in an IR pb mean?

A

The respective IR is lost and can’t be recovered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Should AC power fail, what provides power to all 3 ADIRU’s?

A

Battery power. If after 5 minutes AC power is restored to the main AC buses, ADIRU 2 and 3 are disconnected from the battery and remain unpowered for the remainder of the flight.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What does the illuminated ON BATT light on the ADIRS panel mean?

A

It means that at least one of the ADIRU’s is being powered by the battery instead of AC power. This light will also illuminate temporarily whenever a complete alignment is performed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What does it mean when the IRS IN ALIGN memo flashes green? What about when it turns amber?

A

It flashes green whenever:
Excessive motion is detected
A disagreement exists between the MCDU position and the last position memorized by the IRU’s
A position has not been entered in the MCDU
It flashes amber when an engine is started to remind the crew that the alignment is not yet complete and the aircraft cannot be moved until it’s done.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How many nav databases are loaded onto each FMGC?

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What happen to your flight plan and other stored data if the nav database is switched?

A

It is erased

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What calculates the optimum, managed speeds for each phase of flight?

A

The flight augmentation computers (FAC’s)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the managed speed for takeoff, and what is it called?

A

The managed speed is called SRS or Speed Reference System. SRS equal V2 + 10kt for both engines running or V2 for single engine.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

When does the takeoff phase begin and end?

A

It begins when takeoff thrust is set and continues to acceleration altitude

29
Q

When does the climb phase begin and end? What’s the managed speed for this phase?

A

It begins at acceleration altitude and ends upon reaching cruise altitude entered into the MCDU. The managed speed is 250kts below 10,000’MSL and economy climb speed above 10,000’MSL as calculated based on the cost index. Additionally the FMS will observe any speed or altitude constraints entered into the flight plan (such as might exist in a SID).

30
Q

When does the cruise phase begin and end?

A

From top of climb to top of descent. It includes any step climbs or enroute descents.

31
Q

When does the descent phase begin and end?

A

It starts at top of descent or 200nm from the destination, and ends when the approach phase is confirmed by the pilots or the plane reaches the DECEL point.

32
Q

What is green dot speed?

A

The slowest speed the plane should fly in the clean configuration. I.e. best lift over drag speed.

33
Q

What is the managed speed called when the flap handle is moved to flaps 1? Flaps 2 or 3? Config full?

A

Flaps 1 = S speed
Flaps 2 or 3 = F speed
Config full = Vapp

34
Q

When does the go-around phase begin?

A

When the thrust levers are advanced to TOGA. Doing so will sequence the missed approach. However managed vertical flight is not available. The appropriate altitude must be selected on the FCU.

35
Q

During a go-around what is the managed speed after acceleration altitude?

A

Green dot

36
Q

Which FMGC is the Master?

A

The on-side FMGC (on-side in this context means the side of the active autopilot)

37
Q

What is lost in backup navigation mode?

A

Autopilot and flight directors

38
Q

What is the mix IRS position?

A

Each one of the 3 IRU’s computes it position. The average of the 3 positions is called the MIX IRS position. If one of the 3 IRU’s fails the MIX position is not computed.

39
Q

What is takeoff update?

A

When the thrust levers are set to FLEX or TOGA during takeoff, the FMGC auto updates the aircrafts position to the end of the runway input into the aircrafts flight plan.

40
Q

What needs to be done on the FMGC for an intersection takeoff?

A

A takeoff shift (distance between intersection and full length) must be entered for accurate climb profile computation. This can be entered on the TAKE OFF page.

41
Q

What does the NAV ACCUR DOWNGRAD message in the scratch pad mean?

A

In means that the Estimated Position Error (EPE) is greater than the Required Navigation Performance (RNP)

42
Q

What 4 things does the FMGS auto tune do?

A

-Tunes localizers for guidance on takeoff
-Tunes for FMS position updating
-Tunes for en route VOR/DME display
-Tunes for approach guidance

The RADIO NAV page displayed the navaids that have been tuned automatically or manually for display on the ND’s

The SELECTED NAVAIDS page lists the navaids that have been tuned for radio position updating

43
Q

What normally powers ADIRU 1?

A

The AC ESS bus (meaning that ADIRU 1 will still be powered in the emergency electrical configuration). The back up power is the HOT BAT 2 bus.

44
Q

What normally power ADIRU 2 and 3?

A

ADIRU 2 is normally powered by AC bus 2. ADIRU 3 is normally powered by AC bus 1. They are both backup powered by HOT BAT 1 bus. These ADIRU’s will only remain on battery power for 5 minutes however.

45
Q

What message appears on the E/WD after starting a complete alignment? What does it mean if the message starts flashing?

A

“IRS IN ALIGN 10 MIN” appears in green. It starts flashing green if alignment of one of the IRU’s is faulty due to one of 3 things

-Excessive emotion is detected
-There’s a disagreement between the entered MCDU position and the last position memorized by the IRU’s
-A position has not been entered into the MCDU

46
Q

When will the “IRS IN ALIGN” message turn amber?

A

If an engine is started during the alignment process

47
Q

When must a complete alignment be performed?

A

-First flight of the day
-There is a crew change
-GPS is not available and poor navaid coverage is expected along the route
-GPS is not available and the expected flight time is longer than 3 hours
-Before all international flights (including Alaska)
-Flight into class 2 airspace

48
Q

What the four modes the FMGS can operate in?

A

Dual mode (normal mode)
Independent mode (Each FMGC is being independently controlled by the respective MCDU)
Single mode (Using 1 FMGC only)
Backup navigation mode

49
Q

What is the FMGS Dual mode? When is it active?

A

Dual mode is when both FMGS’s are synchronized. They both perform their own calculations but they exchange data through a crosstalk bus. All data inserted into any MCDU is transferred to both FMGC’s and to ll peripherals. Even so, one FMGC is considered the master and the other the slave, such that some of the data inserted into any the slave FMGC comes from the master. Which FMGC is the master depends on the FCU selections including which AP is selected on and which FD’s are selected on.

Dual mode is the normal operating mode of the FMGS

50
Q

What is FMGS independent mode? How will you know if it’s active?

A

It’s a degraded mode that is automatically selected. In this mode the 2 FMGC’s do NOT exchange information via the crosstalk bus. Instead, each FMGC is independently controlled by their respective MCDU. When this is the active mode in flight you’ll want to do the same things on BOTH MCDU’s so that both are set identically and the flight plan is followed correctly.

When active you’ll get an MCDU scratchpad message, “INDEPENDENT OPERATION”

51
Q

What is FMGS single mode? When is it active?

A

FMGS single mode is automatically selected when one FMGC fails. When this happens you’ll get “OPP FMGC IN PROCESS” on the MCDU scratchpad. When this happens you’ll want both ND’s to be set to the same range, otherwise you’ll get “MAP NOT AVAIL” on the ND on the same side as the failed MCDU. Both MCDU’s control the same FMGC in this case so unlike independent mode you won’t need to make dual entries on the MCDU’s.

52
Q

What FMGS mode can you select if both FMGC’s fail?

A

Back up navigation mode

53
Q

What two ND display modes can you see weather radar in?

A

In both ARC and ROSE mode

54
Q

What are the dimensions for the area the weather radar scans?

A

+/- 80º left and right, +/- 15º up and down, and out to 320nm.

55
Q

Generally speaking, what does ON PATH do on the weather radar when selected?

A

It displays the weather 4000’ below and 4000’ above your projected flight path, based on your current flight path vector, out to 60nm, at which point it assumes a level off. There are exceptions. If ground elevation is less than 4000’ below you, it will show you all weather down to ground elevation. Below 6000’MSL the ON PATH will show you weather up to 10,000’ even if it’s more than 4000’ above you. If you are above 29,000’ MSL, the weather radar will show you weather as low as 25,000’ even if it’s more than 4000’ below you, if there’s convective weather there.

56
Q

When is predictive windshear (PWS) active?

A

Below 1800’ RA (or 2,300’ RA in A/C 230 or 232), with the CAPT or F/O display mode is on, or at least one engine is running and GS is greater than 30 knots.

57
Q

How far ahead does the PWS system look?

A

5nm

58
Q

What is the difference in what aural warnings you’ll hear from the PWS during takeoff vs approach to land?

A

Takeoff warning: “Windshear ahead, windshear ahead”
Approach warning; “Go around, windshear ahead”

59
Q

At what airspeed will you no longer get PWS alerts during the takeoff roll?

A

You WILL get PWS alerts during the takeoff roll up to 100kts, out to 3nm. Above 100kts the alerts will be inhibited until reaching 50’ RA.

60
Q

When is PWS inhibited?

A

It’s inhibited during the takeoff roll up starting at 100 knots, until reaching 50’ RA. During landing it’s inhibited below 50’ RA.

61
Q

When will PWS warnings be downgraded to cautions on final approach?

A

Between 370’ AGL and 50’ AGL, at a range between 0.5nm and 1.5nm

62
Q

At what altitude does PWS become active? At what altitude will you begin to get advisories? At what altitude might you get warnings/cautions?

A

Cautions/warnings are only available between 50’ RA and 1200’ RA out to 3nm. Advisories are available between 50’ RA and 1500’ RA out to 5nm. The system is active up to 1800’RA but no alerts or displays are given between 1500’ RA and 1800’ RA.

Note: It’s slightly different in A/C 230 and 232. Those airframes won’t give any displays or alerts above 1200’ RA. Otherwise it’s basically the same.

63
Q

Which warning is the highest priority of the following list? PWS, TCAS, GPWS, and FWC.

A

PWS is the highest priority and the aural windshear warning will be heated above all the others on that list.

Note: PWS aural warnings will be inhibited by REACTIVE windshear warnings and STALL warnings, which both have a higher priority.

64
Q

What does it mean if precipitation on the ND is displayed with diagonal black lines through it?

A

The precipitation is not on your current path

65
Q

When will you get the “WEATHER AHEAD” message displayed on the ND?

A

When the planes current track (2nm on each side, 4,000’ above and below your track), out to 3 minutes, will penetrate an area or red or yellow weather, or an area of turbulence detection.

Note: This message is inhibited on the ND below 1500’ RA

66
Q

What are magenta weather areas on the ND indicative of?

A

Areas of detected turbulence within 60nm

67
Q

What do the yellow triangles on the weather display indicate?

A

Areas with a high probability of containing hail

68
Q

What do magenta concentric arcs on the weather radar display mean?

A

Areas where the radar’s ability to evaluate the weather is reduced due to severe attenuation

69
Q

Beyond what range does the weather radar’s performance become degraded?

A

The weather radar may be below its optimum performance beyond 80nm. This may lead to late detection of weather and/or underestimation of the weather conditions beyond 80nm.

Frontier (40 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions