NVS Flashcards

1
Q

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

A

Image Intensifiers (I2) and Thermal Imaging (FLIR)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the purpose of Thermal Imaging systems?

A

To provide an IR image of a scene by detecting heat.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the advantage of Thermal Imagers over Image Intensifiers?

A

No light is required to operate a thermal imager.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

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

A

Moisture, Fog, Dust, Haze, and Smoke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What two factors create most of the Parallax Effect?

A

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)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What function does the M-PTUR Receiver perform?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the function of the M-PECA?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

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

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What causes frozen video?

A

Loss of video link communications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does loss of bus communications results in?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What causes cloud shifting?

A

Dynamic Range Compression and IR detector non-uniformity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How is the M-PNVS turned on?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is FLIR polarity?

A

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”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

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

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

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

A

Placing the NVS Mode Switch into the NORM or FIXED position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the four considerations for FLIR optimization?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which should be optimized first, the FLIR or the IHADSS?

A

IHADSS

18
Q

What is the definition of FLIR optimization?

A

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

19
Q

What is the primary objective of FLIR adjustment?

A

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

20
Q

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

A

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

21
Q

When is an optimization required?

A

Required when the crew is going to use the FLIR for Flight, Laser Ops, and Weapons.

22
Q

What establishes the FOV of the M-PNVS?

A

Afocal Assembly

23
Q

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

A

Place the NVS Mode Switch to OFF

24
Q

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

A

Flight

25
Q

What does the NORM position provide the pilot?

A

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

26
Q

What does the FIXED position provide the pilot?

A

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

27
Q

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

A

M-DSA
M-NSA

28
Q

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

A

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

29
Q

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

A

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

30
Q

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

A

M-TADS was not designed for Flight. It was designed for targeting. (M-TADS is a Medium Resolution FLIR) f/2.3 vs f/1.5

31
Q

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

A

When the NVS Mode Switch is “OFF” (It is available as a Sight when the NVS Mode Switch is “OFF”).

32
Q

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?

A

Place the NVS Mode Switch to NORM or FIXED.

33
Q

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

A

FLIR image, Wide FOV

34
Q

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

A

Flight Symbology

35
Q

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

A

30 X 40

36
Q

What is the slew rate of the M-TADS?

A

60 degrees per second

37
Q

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

A

TADS STOW 180º
TADS Alternate Stow: 0º Azimuth, 0º Elevation and not being used as a Sight or Sensor

Alternatively; stowed internally or stowed fixed forward

38
Q

Which crewmember can stow the M-TADS?

A

CPG

39
Q

How can a crewmember select the opposite sensor?

A

NVS Mode switch other than OFF (IE: NORM or FIXED), NVS Select Switch to selected sensor

40
Q

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

A

Yes

41
Q

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

A

Yes

42
Q

If both crewmembers are using a sensor, what happens if either crewmember selects the NVS Select Switch on the Collective Flight Grip?

A

Sensor Swap