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AAS 3 > HSI/Compass > Flashcards

HSI/Compass Flashcards

1
Q

Displays can be _______ systems or _______ displays.

A

Analog or Electronic

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2
Q

What are the 6 navigational sources?

A

Magnetic
Gyroscopic
Inertial Reference System
Global Positioning System
Celestial
Ground Mapping

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3
Q

What are the 5 systems incorporated into a typical HSI?

A

The CDI
Glide slope Indicator (ILS)
RMI
Heading indicator/DG
VOR

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4
Q

Where is the HSI located?

A

Bottom center of the Critical Six

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5
Q

The most modern HSI displays are electronic and often integrated with what?

A

electronic flight director systems into so-called “glass cockpit” systems.

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6
Q

What is CDS?

A

The Copilot Display System

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7
Q

A magnetic compass uses what to provide a direction?

A

the Earth’s magnetic field or magnetic lines of flux

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8
Q

The main advantage of the magnetic compass is what?

A

it requires no power source to use

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9
Q

How is deviation corrected in the aircraft?

A

by the technician

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10
Q

The process of correcting deviation is known as what?

A

Compass Swing

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11
Q

Compass swings take place where?

A

at a compass rose

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12
Q

What would you use a non-magnetic screwdriver for?

A

Set adjustment screws (compensating screws)

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13
Q

What color is the Master Compass?

A

Red
*Reads 180 degrees from the direction you are actually facing

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14
Q

After facing the aircraft to magnetic North, adjust the N-S compensating screw until the compass reads what?

A

Exactly North (0 degrees)

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15
Q

After facing the aircraft East, adjust the E-W compensating screw until the compass reads exactly what?

A

East (90 degrees)

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16
Q

After facing the aircraft South, adjust the N-S screw to:

A

take out half of the error

17
Q

After facing the aircraft west, adjust the E-W screw to:

A

take out half the error

18
Q

Deviation cannot exceed what?

A

+- 10 degrees on any heading

19
Q

How often should the compass be checked (swung)?

A

whenever there is an installation or removal of any radio equipment or any other equipment that could have an effect on the compass.

20
Q

The ___ ___ ___ compass system is a type of remote indicating earth inductor compass system.

A

gyro flux gate

21
Q

The compass coupler processes what?

A

the long-term, compensated magnetic field sensor signal

22
Q

The coupler compensates for:

A

magnetic heading errors in the flux valve due to longitudinal and Coriolis acceleration.

23
Q

In the DG mode, the coupler output reflects:

A

the heading output of the directional gyro

24
Q

The purpose of the repeater or compensator is what?

A

to help remove any deviation error

AAS 3 (11 decks)

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