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54 Cards in this Set
- Front
- Back
1. For NVD aided operations, aircrew should plan for NVGs to be most effective following _______, or when the sun has set at least ______ below the horizon.
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1. End of evening nautical twilight: 12 degrees
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2. The ability to see key terrain features is largely a function of the __________________.
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2. The amount of energy reflected off those features
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3. Texture provides _______ and _______ _______ cues and it improves the ________ __________ of the crew.
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3. Recognition and depth perception cues; comfort level
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4. On a moonless night, about ____ of the energy is provided by emissions from atoms and molecules in the upper atmosphere known as ________.
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4. 40%; airglow
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5. Name 4 of the 6 possible natural illumination sources in the night sky on a moonless night.
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5. Starlight, airglow, auroras, gegenscheins, zodiac lights, noctilucent clouds
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6. What the three primary terrain factors that need to be examined for proper NVG mission planning?
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6. Terrain reflectivity (albedo), terrain contrast, and terrain shadowing
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7. Luminance is dependant entirely on _____________.
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7. Reflected energy emanating from the terrain
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8. What are the three major factors that influence NVD performance?
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8. Illumination/thermal scene factors, terrain contrast, and atmospheric conditions
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9. Define albedo.
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9. Ratio of incident energy to reflected energy – the amount of energy reflected by an object.
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10. What are four factors that influence the amount of light provided by the moon (disregarding atmospheric conditions)?
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10. Lunar cycle, moon angle, lunar albedo, and variation in earth-moon distance.
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11. ______ is a measure of the difference between the reflectivity (albedo differences) of two or more surfaces?
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11. Terrain contrast
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12. NVGs operate in both the _______ and _______ spectrum.
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12. Visible and near IR
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13. The moon is approximately ___ brighter during the first quarter than during the third quarter.
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13. 20%
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14. Starlight, not including other sources of moonless night sky illumination, provides about ____.
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14. 0.00022 lux
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15. Level determines the size of the temperature window, typically ranging in size from about one degree up to tens of degrees. (T/F)
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15. False
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16. ______ hot tends to produce a more natural scene for pilotage.
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16. Black
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17. ______ the FLIR system allows for manual adjustment of image thermal conditions and offers slightly different images on the display.
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17. Nudging
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18. Label 5 components of the NVGs.
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18. Interpupillary Distance Adjustment, Fore and Aft Adjustment, objective lens focus adjustment, Tilt adjustment, Eyepiece lens diopter focus adjustment.
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19. The function of the phosphor screen is to convert _____ into _______ so the viewer can view the image.
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19. Electrons, photons
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20. The field of view for the AN/AVS-9 is ___;
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20. 40 degrees.
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21. Thin, wispy clouds have greater spaces between particles, therefore a greater amount of the near IR radiation will be passed through without scattering. For this reason, it is possible for the thin, wispy clouds to be invisible to the naked eye, but visible when viewed by NVG’s. (T/F)
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21. False
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22. While wearing NVGs, objects will appear _____ _____than they actually are.
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22. Farther away
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23. The increased scan required with NVGs must be balanced against excessive head movement as the potential for _______ _________ and _________ increases with increased head movement.
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23. Spatial disorientation, fatigue
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24. Dark adaptation is necessary for NVG use. (T/F)
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24. False
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25. Cumulative fatigue is intense tiredness or exhaustion felt as a result of the natural build-up for muscular metabolic wastes. (T/F)
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25. False
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26. For NVGs, an ________, _______ ________ is essential to overcome the reduced instantaneous circular field of view.
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26. Active aggressive scan
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27. The minimum acceptable visual acuity while using the AN/AVSA-9 under HLL conditions is _____.
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27. 20/30
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28. What is the approximate field of view (FOV) for the human eye?
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28. 180 degrees horizontal, 140 degrees vertical
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29. Which one of the following is not an approved method for NVG prefight focusing: TS-4348, NVG eye lane, ANV-20/20, all of the above are approved.
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29. TS-4348
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30. When viewing the NVD visual acuity targets of the ANV 20/20 Infinity Focus Device, the objective is to be able to discern between the horizontal and vertical lines. (T/F)
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30. True
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31. If NVGs are mounted too far away from an aircrewman’s eyes, that aircrewman will experience:
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31. Significant loss of field of view
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32. The Light Interference Filter (LIF) is an out-of-band optical filter designed to protect the NVG user’s retina from laser energy. (T/F)
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32. False
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33. During low light level operations, pilots have a tendency to ____ altitude.
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33. Increase
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34. A common tendency among aviators is to over fly the capabilities of the NVGs. (T/F)
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34. True
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35. Assault aircraft should use _____ _____ when calling out threats to attached escorts.
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35. Magnetic heading
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36. Routes into a rising or setting moon will increase the illumination levels and will make flying on NVGs easier. (T/F)
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36. False
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37. Within 5 miles of the objective area which map is recommended?
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37. 1:50K Tactical Map
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38. Flying a “stair step” approach during NVG shipboard operations will greatly enhance the pilot’s ability to judge closure rates. (T/F)
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38. False
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39. Wingmen may want to establish ________ to better observe lead when flying in the vicinity of cities or other lighted areas.
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39. Step-down
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40. During section NVG flights, most visual cues for attitude and closure rates are lost in the __ o’clock position.
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40. 6
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41. When flying in formation on NVGs, a ____ to _____ degree bearing will allow the pilot to see both the lead aircraft and the terrain in his flight path, reducing his scanning requirements, while increasing scanning efficiency.
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41. 20-30 degree
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42. Deploying chaff expendables at night is completely covert (T/F)
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42. False
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43. Considerations for flare utilization at night are not any different than for day operations. (T/F)
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43. False
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44. Studies have found that inexperienced NVG users adjust the diopter adjustment ring by putting in too much ______ diopter.
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44. Negative
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45. When flying at night, _____ should always be the primary pilotage aid.
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45. Maps?
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46. List 4 of the NVD route selection guidance.
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46. Avoid brightly lit areas, roads and population centers; avoid navigational aids and airports; avoid segments requiring heading changes greater than 60 degrees, especially when operating with wingmen; consider shadows cast by terrain; avoid route headings directly into a low rising/setting moon or sun; avoid being silhouetted by the moon during approach into the objective area; anticipate the presence of wires near roads, towers, and buildings in open fields; smartpack route cards should use large, bold font that is easy to read under the NVGs.
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47. Label the NVG/desert landing approach
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47. 0.5 nm 200/60, 150/50, 125/45, 100/40, 75/30, 50/20, 25/10-15. Brownout 10-20’, reference regained at 5-10’.
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48. In a non-restricted area covered by an FAA exemption all aircraft except the dash last may secure their navigation lights? (T/F)
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48. True
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49. Prior to conducting night shipboard operations with passengers aboard, the pilot and copilot shall be night carrier qualified and have conducted a minimum of ___ night shipboard landings each within the last ____ days. All other crew members shall be night carrier qualified and have ___ night shipboard flight within the last ____ days.
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49. 2;30;1
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50. Night TERF operations without NVGs are prohibited.
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50. True
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51. Aircraft shall have an operational spotlight on all NVG sorties.
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51. True
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52. The approved method for deriving illumination requirements for night operations is MSHARP. (T/F)
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52. False
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53. What is the Condition 3 lighting configuration (NVD flights outside restricted areas) IAW the ASTACSOP (be specific and list all light/switch settings)
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53. See ASTACSOP
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54. Excessive brightness of the symbology display may impair vision outside of the cockpit. (T/F)
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54. True
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