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Phase 3 EAWS > Block 5 - EA-18G Avionics/Electrical > Flashcards

Block 5 - EA-18G Avionics/Electrical Flashcards

1
Q

Explain Barometric Altimeters

A

Measures from sea level

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2
Q

Explain RADAR altimeters

A

Measures from ground level

Altitude up to 5000 ft

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3
Q

Advantages of using Fiber Optic Cables

A
  • Immune to electrical noise
  • Better signal security
  • Reduced size & weight
  • Environmental protection
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4
Q

What is the Communication Systems consisted of?

A
  • VHF/UHF

- Intercommunication Audio System (IAS)

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5
Q

Use of VHF/UHF

A
  • Communications with ground support, other aircraft, shipping traffic
  • Anti-jam radio equipment
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6
Q

Use of Intercommunication Audio System (IAS)

A
  • Allows communication between pilot, EWO, and ground crew

- Backup communication

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7
Q

What does the Navigation Systems consist of? (5)

A
  • Tactical Air and Navigation (TACAN)
  • GPS
  • Inertial Navigation System (INS)
  • Attitude Reference Indicator (ARI)
  • Instrument Landing System (ILS)
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8
Q

Describe Inertial Navigation System (INS)

A

Dead reckoning navigation system

  • Provides aircraft data while in flight
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9
Q

Describe Attitude Reference Indicator (ARI)

A

Gyro system

  • Pitch and roll attitude reference system
  • Provides a minimum of 3 minutes of attitude info with total loss of power
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10
Q

What is the Tactical Mission Systems made up of?

A
  • Data Link- 2 way UHF

- Mission Computers (MC)- “Brains of the aircraft”

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11
Q

Systems associated with the Tactical EW System

A
  • ALQ-227
  • ALQ-99
  • ALQ-165/214
  • ALQ-218
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12
Q

What does the ALQ-227 do?

A

Modulates & analyzes waveforms

Can interact with ALQ-99

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13
Q

What does the ALQ-99 do?

A

Jammer in the Very Low, Low, Medium, and High band frequencies

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14
Q

What does the ALQ-165/214 do?

A

Onboard jamming system

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15
Q

What does the ALQ-218 do?

A

Analyzes RADAR emitters and signals

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16
Q

Describe the Multipurpose Display Group (MDG) components

A

Displays in cockpit

Left and Right DDI
*Left display has Night Vision

17
Q

Describe the function of the Solid State Recorder (SSR)

A

Removable storage device

18
Q

Purpose of the Deployable Flight Incident Recorder Set (DFIRS)

A

Black box of the aircraft

  • Lasts 30 min
  • Beacon lasts 72 hours
19
Q

What are the different flight reference equipment?

A
  • Pitot static system
  • Indicated airspeed indicator
  • Standby Pressure Altimeter
  • Vertical Speed Indicator
20
Q

What is the Pitot Static System?

A

Measures:

  • Temperature
  • Pitot
  • Static pressures
21
Q

What is the Indicated Airspeed Indicator?

A

Displays airspeed as a function of pitot and static pressure

  • Indicated in 10 knot increments from 50 to 200 knots
  • Indicated in 50 knot increments from 200 to 850 knots
22
Q

What is the Standby Pressure Indicator?

A

An instrument that displays altitude in three displays

Pointer display - 1-1000ft in 50ft increments
Drum display - 1000ft increments to 99,000ft
Four digit display - measures barometric pressure in inches of mercury

23
Q

What is the Vertical Speed Indicator?

A

Senses in air pressure

  • From climb or dive rate from 0 - 6000 ft/min
  • Lower half except dive rate is indicated
24
Q

Describe the functions of the Power Supply

A
  • 2 generators
  • Power Distribution System
  • 2 transformers
25
Q

Describe the function of the Maintenance Battery

A
  • 28vdc power

- Must be installed to start the jet

26
Q

What power does the Generator provide

A

Supplies:

  • 115/200 vdc
  • 400 Hz
  • 3 phase electrical power
27
Q

Function of the Automatic Flight Control System (AFCS)

A
  • Autopilot

- Automatic throttle control

28
Q

Purpose of the nose wheel well Digital Display Indicator (DDI)

A
  • Shows faults in aircraft

- Located below the cockpit/underbelly of jet

29
Q

Purpose of the Digital Memory Device (DMD)

A

Functions as a non-volatile solid state memory device

  • Mission data is uploaded
  • Theater-level maps
30
Q

Purpose of the Flight Incident Recorder and Monitoring System (FIRAMS)

A

Monitors engine and airframe status for unit failures & caution/advisory conditions

31
Q

Discuss the Joint Helmet Mounted Cueing System (JHMCS)

A

Better HUD

  • Increases aircraft survivability

Phase 3 EAWS (7 decks)

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