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Systems > Navigation > Flashcards

Navigation Flashcards

0
Q

How is the AHARS information displayed?

A

It goes through the IC-600 to the PFD and MFD

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1
Q

How many AHARS computers are there?

A

2

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2
Q

What systems are in the AHARS system?

A

Attitude and heading computer
Magnetic flux detector
Memory module

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3
Q

How does the AHC work?

A

3 accelerometers measure aircraft movement on the horizontal vertical and lateral access

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4
Q

How does the MFDU work?

A

It senses the horizontal component of the earths magnetic field.

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5
Q

What does the memory module do?

A

It stores the AHC information.

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6
Q

What is the differences between AHRS 800 and 900?

A

The 900 has 2 Attitude and heading reference unit instead of an attitude and heading computer. Both located in the forward electric compartment.

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7
Q

What is in the AHRU?

A

3 laser gyroscopes

3 accelerometers

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8
Q

How does IRS units differ from AHRS?

A

IRS units use inertial reference units in the forward electronics compartments

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9
Q

What is in the IRU?

A

3 ring laser gyroscope

3 accelerometers

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10
Q

How man satellites does GPS need to determine position?

A

4 satellites

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11
Q

EGPWS provides alert and warnings at what times?

A

Caution - 60 seconds

Warning - 30 seconds

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12
Q

What do the colors mean for terrain clearance?

A 
Red - 2,000' above aircraft
Bright yellow - 1,000 to 2,000 above
Yellow - -250 to 1,000 above
Bright green -250 to -1,000 below
Green - -1,000 to -2,000 below
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13
Q

What is the maximum distance TCAS will pick up an aircraft?

A

100nm

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14
Q

What are the times for TCAS caution and warnings?

A

Caution - 35 to 45 seconds

Warning -20 to 30 seconds

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15
Q

What are the altitude ranges for above below normal and manual modes?

A

Above - 7,000 to -2,700
Below - 2,700 to -7,000
Normal - 1,200 to -1,200
Manual - 2,700 to -2,700

16
Q

What is the range of target mode for the weather radar?

A

7.5 degrees from 100 to 300nm away.

17
Q

What are the obstacle caution and warning times?

A

Caution - 45 seconds

Warning - 30 seconds

18
Q

When are TA’s and RA’s inhibited?

A

TA - below 500’ AGL
Descending RA - below 1000’ descent and below 1200’ climb
ALL RA - below 400’ descent and 600’ climb

19
Q

When does EGPWS produce “Bank Angle”?

A

GPWS - 10 at 30’ to 40 at 150’
EGPWS - 10 at 30’ to 40 at 150’ to 55 up to 2450’
Roll rate above 1 degree per second

20
Q

Windshear escape guidance prevents what?

A

Stalling
Descending
Exceeding Vmo

21
Q

When does Windshear escape guidance mode automatically engage?

A

Go around button press in Windshear.
Go around and Takeoff when Windshear is detected.
Thrust lever in the detent and Windshear is detected.

22
Q

When is Windshear escape guidance cancelled?

A

Any verticals mode selected
Invalid data- AHRS ADC SPS
Above 1500’

23
Q

EICAS inhibition logic- takeoff phase.

A

Activated: v1 - 15kts

Deactivated: 400’, below 60kts, 1 minute

24
Q

EICAS inhibition logic landing phase.

A

Activated: 200’

Deactivated: WOW +3 seconds, 1 minute

25
Q

What are the 3 built in tests for the IC-600?

A

Power up
Continuous
Pilot initiated

26
Q

How many EICAS messages can be displayed on the front page?

A

15

27
Q

What will trigger a takeoff configuration warning?

A

Flaps
Parking break
Pitch trim
Spoiler

28
Q

When will the SPS stick pusher not actuate?

A 
On the ground
Below -.5g
Quick disconnect button pressed
Below 200'AGL
Above 200kts
One channel inop
Cutout buttons released
29
Q

What are the degrees and color of the pitch limit indicator?

A

Green 5-10 degrees
Amber 2-5 degrees
Red below 2 degrees

30
Q

When are the obstacle caution and warnings?

A

Caution 45 seconds

Warning 30 seconds

31
Q

At what altitude will TCAS not give a CLIMB RA?

A

36,000’

Systems (23 decks)

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