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Aircraft Instruments Test 2 Review > Exam Review > Flashcards

Exam Review Flashcards

1
Q

Purpose of GYROS?

A

IFR

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2
Q

List the GYRO instruments

A
  1. Turn Coordinator
  2. Directional gyro
  3. Gyro Horizon (Attitude)
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3
Q

Describe a GYRO

A
  • Movement in an direction

- Spinning = gyroscopic prop

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4
Q

What are the 2 main properties of a GYRO?

A
  1. RIGIDITY IN SPACE

2. PRECESSION

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5
Q

What are gimbals?

A

Pivot points that allow rotation on axes

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6
Q

What are the degrees of freedom?

A

gimbals = # degrees of freedom = # directions the rotor is free to move

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7
Q

Universal Mounting and Semi Rigid Mounting

A
  1. Free/ Universal
    - Directional/Attitude gyro
  2. Restrict/Semi-rigid
    - Rate gyro
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8
Q

What is TORQUE

A

Causes the gyro to PRECESS

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9
Q

What is WANDER

A
  • movement away from SPIN AXIS
  • H DRIFT
  • V Topple
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10
Q

What causes WANDER

A
  • Imbalance
  • Bearing friction
  • Inertia of gimbals
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11
Q

How does a TURN COORDINATOR work?

A
  • Precession
  • Semi rigid
  • 1 gimbal
  • 1 freedom
  • RATE of Turn
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12
Q

DG and Slave system difference

A

Not north seeking, needs to be calibrated every 15min

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13
Q

Purpose of the MAGNETIC COMPASS

A

indicate direction

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14
Q

What are the components of the MAGNETIC COMPASS

A

Magnets, pivot, float, compass card, lubber line, horizontal reference, liquid, expansion unit, compression

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15
Q

What is the ANGLE OF DIP?

A

Angle btwn earths surface and the magnetic lines of force (0 at poles)

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16
Q

Describe VARIATION??

A

Mag north vs True north

17
Q

Define ISOGONIC

A

Connect points of equal variation

18
Q

What is ACCELERATION ERROR

A 
Airspeed changes (inertia/magnetic dip) 
mostly on east and west
19
Q

What are the steps of a COMPASS SWING

A

??

20
Q

Compass swing preparation

A

N, E, S, W

21
Q

Purpose of a COMPASS CORRECTION card

A

Deviation correction for any heading

22
Q

Describe a SLAVE COMPASS SYSTEM

A
  • automatic presentation of accurate magnetic headings

- no manual transfer needed

23
Q

Components of a SLAVE GYRO

A

HSI
DG
Flux Valve
Slave control/compensator

24
Q

Describe a MAGNETOMETER

A

Mag field sensing device (H&V)

25
Q

What are the advantages of a SLAVE GYRO??

A

No need to reset

26
Q

Describe an ACCELEROMETER

A

Measures G forces/acceleration on the VERTICAL axis

27
Q

Describe a G meter

A

3 pointers

  1. current
  2. max
  3. Min
28
Q

Describe INERTIAL NAV

A
  • Accelerometers movement
  • Gyros (topple/drift)
  • Local vertical
  • True North
29
Q

What is INITIALIZATION

A

Leveling/Aligning the aircraft to a required reference

  • Stationary
  • Alignment (east)
  • Leveling (no acceleration)
30
Q

What is the IRS LASER GYRO

A

Measures the RATE of rotations about each aircraft axis (PHASES)

31
Q

Advantages of the RLG??

A

Eliminates all moving parts

Aircraft Instruments Test 2 Review (19 decks)

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