NVG Flashcards

(32 cards)

1
Q

Describe anvis

A

The equipment is a precision electro-optical instrument

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2
Q

Anvis is a passive light amplification system that intensifies light how much?

A

6000 times

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3
Q

The object lense is what class

A

Class b

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4
Q

Whats the best visiual acuity attainable with the anvis 9

A

Between 20/20 and 20/25

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5
Q

Will anvis correct for astigmatism

A

No

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6
Q

Do nvg’s magnify?

A

No 1:1

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7
Q

Anvis field of view

A

40°

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8
Q

Anvis break away capability

A

10-15g

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9
Q

What is monochromatic

A

Single color viewing, nvgs do not provide color discrimination

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10
Q

What batteries can you use

A

1.5v AA alkaline or lithium but do not mix. Do not use rechargeable

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11
Q

Whats the life of 2 alkaline batteries

A

50 to 55hr

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12
Q

What can you clean the goggles with

A

Lense paper or lense brush

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13
Q

Max counter weight amount

A

Do not exceed 22oz, weight above 5.5 is discouraged

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14
Q

Main monocular components

A

A. Objective lense
B. Image intensifier
C. Eyepiece lense

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15
Q

Image intensifier components

A
A. Photocathode
B. Microchannel plate
C. Phosphor screen
D. Power supply
E. Fiber optic inverter
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16
Q

What percentage of people in the army are stupid?

17
Q

Objective lense-

A

An optical element that gathers light and can be focused for the distance of an object

18
Q

Image intensifier-

A

An electro optical device that detects and amplifies light to produce a visual image

19
Q

Photocathode-

A

Converts incoming light energy (photons) into electrical energy (electrons)

20
Q

Microchannel plate-

A

A thin wafer that increases the number and velocity of electrons

21
Q

Phosphor screen-

A

Converts electrons to photons

22
Q

Power supply function-

A

Provides power(obvi) also provides automatic brightness control and bright source protection

23
Q

Fiber optic inverter-

A

A bundle of microscopic light transmitting fibers twisted 180°

24
Q

Eyepiece lense-

A

Focus the image from the fiber optic inverter onto the eye

25
How much batteey time is left when low battery laight illuminates
Approximately 30 minutes
26
What are the possible visual deficiencies of the anvis
``` Shading Edge glow Flashing/flickering Black/bright spots Chicken wire Honeycomb ```
27
Anvis must be inspected
180 days
28
What is a goggle operation
Anything 1hr after sunset 1hr before sunrise that uses goggles in an aircraft thats approved for those operations.
29
Nvg recency operating experience (time)
A pic can carry passengers if theyve completed the required tasks within the 2 months preceding the month of the flight You may act as pic if youve completed the tasks with the preceding 4 months
30
61.57 nvg operating experience tasks
``` 3 take off and landings 3 hovering tasks 3 departures and arrivials 3 transitions 6 operations 135 operators are required to do this in same category, class, type ```
31
A050 aircraft visual inspection and operational check
Inspect- Windows for cleanliness All instruments and panels All internal and external lights Required within preceding 60 days
32
Nvg weather mins in class g
Non mountainous Local-800/3 cc-1000/3 Mountainous Local-1000/3 cc-1000/5