Chapter 3

Question 1

What can pilot displays be used for ?

Answer 1

Maintenance and testing purposes by ground crew

Question 2

What can displays and control be

Answer 2

Simple indicators and hard switches to complicated multifunction merged displays

Question 3

What are the main instrument panel made of and why

Answer 3

Light allot with sufficient strength rigidity to accommodate number of instruments

Question 4

What 6 basic flight instruments should be composition in all aircraft

Answer 4

Airspeed indicator
Altimeter
Altitude indicator
Direction indicator
Vertical speed indicator
Turn and slip indicator

Question 5

What is required for instruments panels

Answer 5

Hinges for access
Anti- vibration mounting
Made of light alloy with sufficient strength

Question 6

What is the purpose of a MPD

Answer 6

Replace analogue displays

Question 7

What can allowed the change from gauges to displays

Answer 7

Cathode ray tubes ( CRT)

Question 8

What are the advantages of using flat panels over CRT displays

Answer 8

Smaller
Lighter
More efficient
Reliable
Less expensive

Question 9

What is a disadvantage of CRT

Answer 9

Heavy
Took up a lot of volume
Only serves one function

Question 10

Describe a heads down display

Answer 10

Requires the pilot to take his attention away from flight

Question 11

What are UFD

Answer 11

Upfront Flying Display

A monochrome light-emitting diode display

Question 12

What does a UFD do

Answer 12

Shows :
warnings
Cautions
Advisories

Question 13

What are the two types of radios

Answer 13

VHF
UHF

Question 14

What is a VHF radio

Answer 14

Civilian aerospace community

Question 15

What is UHF

Answer 15

Military use

Question 16

What do they do to make the radios simpler

Answer 16

Combine UHF and VHF into one unit , able to transmit and receive frequency ranges

Question 17

What is a transceiver , what doe the two part do

Answer 17

Transmitter : Tx take voice signal and converts them into transmittals signal format

Receiver : Rx takes signals received by antenna , strips of carrier wave and converts to audio signal

Question 18

What is a control unit

Answer 18

Allows selection of frequencies
Pre loaded frequencies
Different modes
Volume control

Question 19

What does an aerial / antenna work

Answer 19

Produces electro- magnetic waves from the transmitter’s RF output power

&

receives electromagnetic waves and produces an RF voltage at received input

Question 20

What power supply is required for V/UHF systems

Answer 20

28 DC

Enables system to be power from aircraft emergency supply , allowing radio coms all the time

Question 21

What are Hf radios

Answer 21

High frequency radio
Provide aircraft with around the world coms
Bounces signal off of ionosphere

Question 22

What are the two types of HF aerials

Answer 22

Washing line serial ( large transport aircraft )
Slot aerial ( fast jets ).

Question 23

Why are satellites used instead of HF radios

Answer 23

More reliable by relying coms through a satellite to a ground station

Question 24

What are the three main components of SATCOMs

Answer 24

Satellite
Aircraft ground station
Ground earth stations

Question 25

What are the two types of control systems

Answer 25

Open and closed systems

Question 26

What is an open loop system

Answer 26

Controlled by a signal Pre set value

Question 27

What are disadvantages of open control loop systems

Answer 27

No account of environment change

Question 28

What are advantages of open loop control systems

Answer 28

Simple Low cost

Question 29

What is an example of open loop control systems

Answer 29

Pilot flying the aircraft manually

Question 30

What is a closed loop control system

Answer 30

The value of the output parameter of the system is measure compared to the desired value

Question 31

What is the difference between the value and desired value called in a closed loop so trial system

Answer 31

Error , its is monitored and adjusts to tenure the desired output is reached

Question 33

Closed loop system advantages

Answer 33

It had feedback

Question 34

What is a servo mechanism

Answer 34

Closed loop circuit with a motor connected to it

Question 35

What does a control system have to have to be a servomechanism

Answer 35

Error activation Power amplification Closed loop control ( feedback) Continuous operation

Question 36

What is the FMS

Answer 36

Fight management system

Question 37

What is a FMS good for

Answer 37

Economising fuel , change it speed to arrive at a pre determined time

Question 38

What is the difference between FMS and FDS

Answer 38

FMS flys the aircraft , FDS gives all the info but dies actually change anything

Question 39

What is EICAS

Answer 39

Engine indication and crew alerting system

Question 40

Advantages of Heads Up display ( HUDs)

Answer 40

Wider field of view Navigation , target position, Gunn ammunition trajectory Night vision and thermal targeting possible Can be PFD

Question 41

Disadvantage of helmet mounted displays

Answer 41

The weight of equipment