NVS

Question 1

What are the two types of night vision devices available to crewmembers?

Answer 1

Image intensifiers (I2)
Thermal Imaging (FLIR)

Question 2

What is the purpose of thermal imaging systems?

Answer 2

To provide an IR image of a scene by detecting heat

Question 3

What is the advantage of thermal imagers over image intensifiers?

Answer 3

No light is required to operate a thermal imager

Question 4

What atmospheric elements affect the composition or density of the atmosphere and, therefore, affect IR signal transmission?

Answer 4

Moisture, Fog, Dust, Haze, and Smoke

Question 5

What two factors create most of the Parallax Effect?

Answer 5

Angular difference between the M-PNVS and the HDU, and the distance from the item being observed. (Close-in at a 90 degree angle is the worst)

Question 6

What function does the M-PTUR Receiver perform?

Answer 6

Converts Infrared (IR) images to 16 analog outputs to the FLIR processor.

Question 7

What is the function of the M-PECA?

Answer 7

Amplifies azimuth and elevation commands and sends them to the drive motor to move the turret

Question 8

What are the three types of Built-In-Tests (BITs)?

Answer 8

Start-up (S-BIT), Continuous (C-BIT),
Initiated (I-BIT).

Question 9

What causes frozen video?

Answer 9

Loss of video link communications

Question 10

What does loss of bus communications results in?

Answer 10

Affected turret (M-TADS/M-PNVS) will move to fixed forward in 5 seconds

Question 10

What causes cloud shifting?

Answer 10

Dynamic Range Compression and IR detector non-uniformity

Question 11

How is the M-PNVS turned on?

Answer 11

WPN-UTIL Page Automatically if initial power came from the APU Manually if using an AGPU

Question 12

What is FLIR polarity?

Answer 12

FLIR polarity is a shade reversal effect applied to the FLIR in order to view an item more clearly. The resulting selection is referred to as “White Hot” and “Black Hot”.

Question 13

How can a crewmember tell what polarity their FLIR system is using?

Answer 13

Look at the sky (Clear Sky)
Sky Dark = White Hot
Sky Light = Black Hot

Question 14

How can the crewmember using the M-PNVS bring it out from the stow position?

Answer 14

Placing the NVS Mode Switch into the NORM or FIXED position

Question 15

What are the four considerations for FLIR optimization?

Answer 15

-FLIR must be cooled
-Scene rich in detail
-Select a polarity
-Only one control should be adjusted at a time

Question 16

Which should be optimized first, the FLIR or IHADSS?

Answer 16

IHADSS

Question 17

What is the definition of FLIR optimization?

Answer 17

Using a combination of a level and gain to achieve the best detail

Question 18

What is the primary objective of FLIR adjustment?

Answer 18

Obtaining the highest possible picture quality for the flight environment (obtaining a quality image)

Question 19

What two things should crewmembers ensure before they optimize the FLIR?

Answer 19

Ensure that the “NVS NOT COOL” or FLIR NOT COOL” message is no longer present and that the “ACM” is off

Question 20

When is optimization required?

Answer 20

When the crew is going to use the FLIR for flight, laser ops, and weapons

Question 21

What establishes the FOV of the M-PNVS?

Answer 21

A focal assembly

Question 22

How can the crewmember in control of the M-PNVS stow it?

Answer 22

Place the NVS mode switch to OFF

Question 23

What symbology is always present on the M-PNVS display?

Answer 23

Flight

Question 24

What does the NORM position provide the pilot?

Answer 24

Provides M-PNVS video that is slaved to the pilot's helmet mounted display (HMD)

Question 25

What does the FIXED position provide the pilot?

Answer 25

Provides the pilot with a M-PNVS that is fixed forward at 0 degrees in azimuth and -4.9 degrees in elevation

Question 26

The M-TADS is divided into what two major sections?

Answer 26

M-DSA M-NSA

Question 27

What major components are located within each section of the TADS?

Answer 27

M-DSA= DTV, LST, LRFD M-NSA= FLIR

Question 28

What must crews ensure on preflight for M-TADS operation?

Answer 28

Covers OFF- M-DSA cover, M-NSA cover, Boresight Module Cover

Question 29

Why is the M-TADS resolution not as good as the resolution of the M-PNVS?

Answer 29

M-TADS was not designed for flight. It was designed for targeting. (M-TADS is a medium Resolution FLIR) f/2.3 vs f1/5

Question 30

When is the M-TADS not an available selection as a sensor?

Answer 30

When the NVS mode switch is "OFF" -It is available as a sight when mode switch is "OFF"

Question 31

If the CPG is using the M-TADS as a sight and it is required for NVS flight, what must the CPG do to gain control of the M-TADS as a sensor?

Answer 31

Place the NVS mode switch to NORM or FIXED

Question 32

If either crewmember selects M-TADS from a sight to a sensor, what image will be displayed on the HDU?

Answer 32

FLIR image, Wide FOV

Question 33

What symbology will be displayed on the HDU when using M-TADS as a sensor?

Answer 33

Flight symbology

Question 34

What is the fixed field of view of the M-TADS when used as a sensor?

Answer 34

30 x 40

Question 35

What is the slew rate of the M-TADS?

Answer 35

60 degrees per second

Question 36

What are the two stow positions for the M-TADS when not in use?

Answer 36

-TADS STOW 180 deg -TADS alternate stow: 0 azimuth, 0 elevation -Not being used as a sight or sensor

Question 37

Which crewmember can stow the M-TADS?

Answer 37

CPG

Question 38

How can a crewmember select the opposite sensor?

Answer 38

NVS mode switch other than OFF (NORM/FIXED)

Question 39

Can the pilot always select M-TADS from the CPG?

Answer 39

Yes

Question 40

Can the CPG always select M-PNVS from the pilot?

Answer 40

Yes

Question 41

If both crewmembers are using a sensor, what happens if either crewmember selects the NVS select switch on the collective flight grip?

Answer 41

Sensors Swap

Question 42

How can a crewmember select the imagery to view?

Answer 42

Boresight switch on collective

Question 43

How long does it take for the camera shutter to open on the ground when selecting the fused mode?

Answer 43

2 seconds

Question 44

What mode must the system be in to optimize ITV?

Answer 44

Fused

Question 45

What controls are used to optimize ITV?

Answer 45

Level for brightness, Gain for size

Question 46

The amount of IR energy radiated depends on the amount of thermal energy it was exposed to and how much....

Answer 46

Reflected Absorbed Transmitted

Question 47

Factors that affect image quality?

Answer 47

-IR cross over -Atmospheric conditions -Atmospheric transmission -FLIR performance

Question 48

FLIR can see through what atmospheric conditions?

Answer 48

-Moisture -Fog -Haze -Dust -Smoke

Question 49

Parallax effect

Answer 49

Distance vs Angle, greatest at 90 deg left and right

Question 50

Binocular Rivalry

Answer 50

Undirected attention shift from HDU to an unintended point (light adjustments)

Question 51

What is M-PTUR?

Answer 51

Modernized PNVS Turret

Question 52

AZ/EL for M-PTUR

Answer 52

AZ 90 deg EL +20/-45 Rate 120 deg per sec

Question 53

M-PECA

Answer 53

Modernized PNVS electronic control amplifier

Question 54

What does the MPTUR receiver do?

Answer 54

Receives IR image from relay focus assembly and converts image to 16 analog outputs

Question 55

Array outputs _____ lines of video and needs ____ lines for display

Answer 55

960 lines 811 lines

Question 56

EOCCM

Answer 56

Electro optical counter countermeasure filter

Question 57

Pilot ensures ____ is powered on

Answer 57

M-PNVS

Question 58

CPG ensures ______ is powerd on

Answer 58

M-TADS

Question 59

SANUC

Answer 59

Scene Assisted Non-Uniformity Correction

Question 60

M-PNVS stowed position

Answer 60

120 deg left

Question 61

M-TADS stowed position

Answer 61

fixed forward

Question 62

ACM

Answer 62

Automatic Contrast Mode

Question 63

TADS stow position

Answer 63

0/0 deg