BWS / Night checkride

Question 1

What are the techniques of movement ?

Answer 1

Traveling (Enemy unlikely)
Traveling overwatch (Enemy possible)
Bounding over-watch (Enemy expected)

Question 2

When can landing light be used during tactical operations ?

Answer 2

When the use of it prevents a hazardous situation

Question 3

What should you be aware of in regard to supplemental cockpit lighting ?

Answer 3

That they must be compatible with NVGs and adhere to directives

Question 4

Must NVD IR light be installed for night flights ?

Answer 4

Yes

If experiencing failure in flight it must be determined what effects it has on the mission

Question 5

Ceiling and visibility requirements for night flights?

Answer 5

Takeoff 1000’ ceiling 3 SM vis
Recovery 700’ ceiling 1 SM vis

Question 6

When does the counterweight break off

Answer 6

10-15 G

Question 7

Explain

NVG operational considerations: Color discrimination

Answer 7

NVGs eleminates colors - gives a monochromatic picture

Question 8

Explain

NVG operational considerations: Scanning techniques

Answer 8

Basic principles are the same as unaided flight.
But due to the 40 degree FOV, continal scanning is necessary to compensate.

be aware of SD - scan slowly and intentionally

Question 9

Explain

NVG operational considerations: Obstruction detection

Answer 9

Obstructions have poor reflective surfaces - be aware

Question 10

Explain

NVG operational considerations: Spatial Disorientation

Answer 10

Aviators should avoid making drastic changes in attitude / bank / speed and head movements

Question 11

Explain

NVG operational considerations: Airpseed and ground limitations

Answer 11

Don’t overfly your capability (reaction time) - obstacles avoidance

Reduce speed

Question 12

Is red cockpit lighting authorized with NVGs

Answer 12

No - it’s not compatable

Question 13

What’s the Mnemonic for “NVG operational consideration - Distance estimation and depth perception”

Answer 13

DATE
Degree of contrast - Available lighting - Type/quality of NVG - Experience

Question 14

What’s the Mnemonic for “NVG operational consideration - Lights”

Answer 14

BEAP
BSP - Effect of bright lights (halo) - ABC - Performance relations (identification of objects at distance)

Question 15

Illusions

When can “Height, depth perception” occur ?

Answer 15

Over areas w/o visual references

Misjudge a/c altitude

Question 16

illusions

When can “Size-distance illusions” occur

Answer 16

When size of a known object is used to judge distance (and the size isn’t as it normally is)

Question 17

Illusions

When can “size constancy” occur ?

Answer 17

landing at unfamiliar runway (eg. wider runway than usual will make you think you are lower than you actually are)

Question 18

Illusions

When can “shape constancy” occur ?

Answer 18

Sloping runways

Downsloping runway can create illusion that the a/c is lower than it actually is

Question 19

At what PA does adverse effects on night vision start ?

Answer 19

4.000’ PA

Question 20

What effect does lack of oxygen have on night vision ?

Answer 20

Decreases rod sensitivity = Increase dark adaptation time and decreases general night vision

Question 21

Which colors falls natually on the retinal wall and allows the eye to focus better ?

Bonus effects ?

Answer 21

Blue/green

Decreases glare and IR signature

Question 22

What is the forvea centralis responsible for ?

Answer 22

Sharp central vision - important for visual detail

Question 23

Where is the day blind and night blind spot in relation to the forvea ?

Answer 23

Night: The forvea is the night blind spot
Day: 15 degrees of forvea (optic disc)

Question 24

During an autoration - how do you obtain minimum rate of descent or maximum glide distance ?

Answer 24

Minimum rate of descent : 60 KIAS
Maximum glide: 90 KIAS

Question 25

What is EENT and what does it stand for ?

Answer 25

End evening nautical twillight When the ambient solar light ( after/beofre sunset/sunrise ) becomes unusable | 48 min after sunset

Question 26

What considerations differ when planning terrain flight route for night operations ?

Answer 26

- Use 1000m each side of route - highest elevation - for altitude calculations - For altitude calculations add 80' for obstacle avoidance - Selecting ACPs / route : avoid bright lit areas, low contrast, shadows, flying into setting moon ect.

Question 27

At night, course changes should not exceed ____ degrees

Answer 27

60 degrees

Question 28

The ANVIS before operation checks

Answer 28

- Check serial number - Inventory - DA form 2408-30 ( 6 month service + look if it's ground - red X)

Question 29

NVG considerations for IIMC

Answer 29

- NVGs may allow you to see through obscruration - IMC with landing light on may cause SD - NVGs may be removed once in stabile climb

Question 30

When experiencing NVG failure at NOE or contour the P* will ?

Answer 30

Initiate a climb that ensures obstacle avoidance

Question 31

Which is the most important depth perception cue and explain it

Answer 31

**Motion parallax** Apparent relative motion of stationary object as viewed by an observer moving across the landscape

Question 32

What are the army VFR WX minimums for - Class G - below 1200' - night - Class C, D & E - below 10.000 - night

Answer 32

**Class G:** 1 SM / COC **Class C,D,E:** 3 SM / BCC

Question 33

Unaided nightflight is not autorised below what altitude?

Answer 33

200' AHO (except takeoff and landing)

Question 34

NVG considerations for autorotation

Answer 34

- Attitude control is critical - Use searchlight - Steady state before 300' AGL

Question 35

What's a steady state autorotation

Answer 35

- a/c in trim - Appropriate airspeed - NRO w/i limits - Position to terminate

Question 36

When is a flight considered a terrain flight ?

Answer 36

When flying below 200' AHO