Phase III - Block V - Electronic Systems

Question 1

What are the important safety issues regarding the Electronic Systems?

Answer 1

Avionics safety not only includes basic electrical safety but also has specific hazards associated this operation of certain systems.

Question 2

What is important safety wise about the APS-133 weather radar?

Answer 2

It has a hazard area that extends 35 feet in front of the aircraft for personnel and 51 feet for explosives or fuel.

Question 3

What is important safety wise about the ARC-190 HF radios?

Answer 3

It has a hazard area that is the top of the aircraft for personnel, 200 for fuel ignition and 150 feet for explosives.

Question 4

What is the avionics system?

Answer 4

It is electronic systems are provided in the aircraft for communication and navigation. Major components are located in equipment racks mounted at various stations in the fuselage. Antennas are mounted flush with the fuselage skin where possible in order to eliminate additional aerodynamic drag.

Question 5

Explain what instruments and indicators of instrument systems do?

Answer 5

They are grouped according to function or panels in the flight station. The main instrument panel is divided into three sections. The pilots indicators are on the left section. The right section , called the copilot’s instrument panel, holds the copilot’s flight indicators and hydraulic system pressure indicators. Engine indicators are on the center panel. Electrical system indicators, fuel quantity indicators, and anti-icing and de-icing indicators are on the overhead control panel.

Question 6

What is an ADI and how many are on the aircraft?

Answer 6

Attitude Display Indicators (ADI), one each located on the pilot and copilot main instrument panel center just below the windscreen. The ADI gives input to the pilot and co-pilot on the relative attitude of the aircraft.

Question 7

What is a HSI and how many are on the aircraft?

Answer 7

Horizontal Situation Indicators HSI, one each located on the pilot and copilot main instrument panel directly below the ADI. The HIS’s display heading and distance inputs to the pilot and copilot from a wide range of navigation systems which are selectable.

Question 8

What is a BDHI and how many are on the aircraft?

Answer 8

Bearing Distance Heading Indicators, one each located on the pilots and copilots main instrument panel, and the other two are located on the navigator’s instrument panel.

Question 9

How many radar indicators are there in the C-130T?

What are the radar indicators?

Answer 9

Two radar indicators are utilized. One on the bottom right corner of the pilot’s main instrument panel, and the other is located at the navigator’s station.

Question 10

How many radar altimeter indicators are there in the C130T?

What are the radar altimeter indicators?

Answer 10

There are two radar altimeter indicators. One each located on the pilots and copilots main instrument panel. They give input to the pilot and copilot on the actual aircraft distance to the ground.

Question 11

How many barometric altimeter indicators are there in the C130T?
What are the barometric altimeter indicators?

Answer 11

There are three barometric altimeter indicators. One each located on the pilots and copilots main instrument panel and the third is located on the navigator’s instrument panel. The barometric altimeter indicator gives input to the pilot and copilot on the aircraft distance above sea level.

Question 12

How many airspeed indicators are there in the C130T?

What are the airspeed indicators?

Answer 12

One each located on the pilots and copilots main instrument panel. The airspeed indicator gives an input to the pilot and copilot on the airspeed of the aircraft measured in knots (not to be confused with the ground speed measured in MPH).

Question 13

What does TCAS stand for?

Answer 13

Traffic Collision Avoidance System

Question 14

What does TCAS do?

Answer 14

The TCAS indicator is located on the pilots main instrument panel. The TCAS indicator gives input to the flight crew on the air traffic around the aircraft. It also gives instructions on how to move the aircraft to avoid a mid-air collision.

Question 15

What does CDNU stand for?

Answer 15

Control Display Navigational Unit

Question 16

What does the CDNU do?

Answer 16

The CDNU’s give the flight crew the ability to change radio frequencies, navigational stations, and flight planning for waypoints to be displayed on the radar indicator.

Question 17

How many CDNU’s are on the C-130T & where are they located?

Answer 17

3 they is one located on the pilot’s side of the center stand electrical panel, the second is located on the copilot’s side shelf extension and the third is located on the navigators instrument panel.

Question 18

What does the ARN-151 GPS do?

Answer 18

(Global Positioning System) - There is one GPS system located in the aircraft controlled by the CDNU. The GPS system is a self-contained system that gives heading and distance information to the flight crew on any way-point anywhere in the world.

Question 19

What does the LTN-100 INS do?

Answer 19

(Inertial Navigation System) There are two INS systems installed on-board the C-130. The number one system is controlled by a controller located on the co-pilot side, center stand electrical panel. The number two system is controlled using a controller located on the navigators instrument panel. The INS system gives the flight crew input on the position of the aircraft and distance and heading information to any waypoint in the world.

Question 20

What does the C-12 compass system do?

Answer 20

There are two C-12 compass systems installed on the C-130 and both are controlled ising controllers located on the navigator’s main instrument panel. The C-12 system gives the flight crew relevant bearing information for various indicator displays.

Question 21

What does the standby compass do?

Answer 21

There is only one standby compass located on the top left copilots main instrument panel. The standby compass consists of an adjustable magnet placed in a viscous fluid and it provides the flight crew with a relative bearing of the aircraft.

Question 22

What does TACAN stand for?

Answer 22

Tactical Air Navigation

Question 23

What does the TACAN system do?

Answer 23

There are two different TACAN systems on the C-130. One is the ARN-139 and the second is the ARN-118. They are both controlled using the CDNU and both give heading and distance to a TACAN station. The main difference is that the ARN-118 provides the ability to become a mobile TACAN station for refueling duty.

Question 24

What is the ARN-126 VOR system?

Answer 24

(VHF Omnidirectional Ranging) - There are two ADF systems installed that are controlled by the CDNU. Both give bearing and distance to a VOR station.

Question 25

What does the DF-206 ADF system do?

Answer 25

(Automatic Direction Finder) - There are two ADF systems installed utilizing one controller that is located in the center stand electrical panel. The ADF gives bearing to a selected radio station.

Question 26

What is the AN//AIC-18A/25 ICS system and what does it do?

Answer 26

There are nine Inter-communication Stations (ICS) located throughout the aircraft to allow for communication between crew members. There are six control boxes located in the flight station for the pilot, copilot, flight engineer, navigator station, and the navigator bunk station. The remaining three are in the cargo compartment.

Question 27

What is the ARC-210 VHF/UHF radio and what does it do?

Answer 27

There are two ARC-210 radios installed in the aircraft and they are controlled by the CDNU. The ARC-210 is a dual frequency range radio that allows contact between the aircraft and medium range stations.

Question 28

What is the ARC-186 VHF radio and what does it do?

Answer 28

There are two ARC-186 radios installed on the aircraft and both are controlled through the CDNU. The ARC-186 radios are a single frequency range radio to allow contact between the aircraft and medium range stations.

Question 29

What is the ARC-190 HF radio and what does it do?

Answer 29

There are two ARC-190 radios installed on the aircraft. The number one system is controlled by a control box located on the pilot side center stand electrical panel. The number two system is controlled by a control box located on the copilot’s side shelf extension. The ARC-190 radio allows for contact between the aircraft and the long range targets.