2. 1 NIGHT VISION DEVICES BRANCH AVIATION TRAINING BRIGADE USAAVNC

3. 2 NIGHT VISION DEVICES TRAINING AND OPERATIONS FACILITY

4. 3 MISSION “TRAINING THE AIRCREWS OF TOMORROW----TONIGHT”

5. 4 AN/AVS-6 OPERATIONS

6. 5 n SURVIVABILITY n SURPRISE n SUSTAINMENT

7. 6 TERMINAL LEARNING OBJECTIVE WHILE SERVING AS AN AIRCREW MEMBER, EMPLOY THE AVIATOR NIGHT VISION IMAGING SYSTEM (ANVIS) IN ACCORDANCE WITH (IAW) TC 1-204, TM 11-5855-263-10, AND CURRENT DIRECTIVES.

8. 7 SAFETY n NOTES n CAUTIONS n WARNINGS n FIRE EXITS n FIRE EXTINGUISHERS

9. 8 RISK ASSESSMENT LEVEL LOW

10. 9 ENVIRONMENTAL CONSIDERATIONS NONE

11. 10 EVALUATION EACH STUDENT WILL BE REQUIRED TO SUCCESSFULLY COMPLETE A EACH STUDENT WILL BE REQUIRED TO SUCCESSFULLY COMPLETE A 23 QUESTION LESSON EVALUATION WITHIN 20 MINUTES.

12. 11 HISTORY

13. 12 SU-50

14. 13AN/PVS-5

15. 14 AN/PVS-5 CUT-AWAY

16. 15GM-6

17. 16 ANVIS

18. 17

19. 18 ENABLING LEARNING OBJECTIVE # 1 ENABLING LEARNING OBJECTIVE # 1 FROM A LIST, SELECT END ITEM COMPONENTS OF THE ANVIS IAW TM 11-5855-263-10

20. 19 CAUTION ANVIS IS A PRECISION ELECTRO- OPTICAL INSTRUMENT, HANDLE CAREFULLY. KEEP OBJECTIVE AND EYEPIECE LENS CAPS ON WHEN NOT IN USE.

21. 20 END ITEM COMPONENTS

22. 21 NOTE ONLY A QUALIFIED AVIATION LIFE SUPPORT EQUIPMENT (ALSE) TECHNICIAN WILL REMOVE AND /OR INSTALL THE ANVIS MOUNT ASSEMBLY. ONLY A QUALIFIED AVIATION LIFE SUPPORT EQUIPMENT (ALSE) TECHNICIAN WILL REMOVE AND /OR INSTALL THE ANVIS MOUNT ASSEMBLY.

23. 22 BATTERIES 3.0 VOLTS

24. 23 WARNING DO NOT HEAT, PUNCTURE, DISASSEMBLE, SHORT CIRCUIT, ATTEMPT TO RECHARGE, OR OTHERWISE TAMPER WITH THE BATTERIES.

25. 24 WARNING THE USE OF ANY BATTERIES OTHER THAN BA-5567/U LITHIUM OR AA ALKALINE BATTERIES IS NOT AUTHORIZED.

26. 25 POWER PACK

27. 26 COUNTERWEIGHT SYSTEM n WEIGHT BAG n COUNTERWEIGHTS

28. 27 WEIGHT BAG

29. 28 NOTE n A VELCRO PATCH ON THE BACK OF THE HELMET IS REQUIRED TO ATTACH THE COUNTERWEIGHT SYSTEM AS WELL AS THE BATTERY PACK. n THE WEIGHT BAG SHOULD NEVER WEIGH MORE THAN 22 OUNCES.

30. 29 WARNING THE USE OF MATERIALS THAT THE USE OF MATERIALS THAT HAVE SHARP EDGES IN THE HAVE SHARP EDGES IN THE WEIGHT BAG IS DISCOURAGED. WEIGHT BAG IS DISCOURAGED.

31. 30 LIGHT INTERFERENCE FILTER (LIF)

32. 31 NOTE THE LIFS ARE TO REMAIN ON THE ANVIS OBJECTIVE LENSES EXCEPT FOR CLEANING OR MAINTENANCE. THE LIFS ARE TO REMAIN ON THE ANVIS OBJECTIVE LENSES EXCEPT FOR CLEANING OR MAINTENANCE.

33. 32 NECK CORD

34. 33 WARNING DO NOT ATTACH THE LANYARD TO THE FLIGHT HELMET. TO THE FLIGHT HELMET.

35. 34 CAUTION THE LANYARD MUST BE WORN WHILE FLYING WITH ANVIS. WHILE FLYING WITH ANVIS.

36. 35 NOTE WHILE HANGING THE ANVIS BY THE NECK CORD, KEEP THE OBJECTIVE LENS CAPS ON TO PROTECT THE LENSES FROM BEING SCRATCHED BY THE AIRCRAFT SHOULDER HARNESS METAL OR TWIST THE NECK CORD TO ALLOW THE NVGS TO HANG HIGH ON THE CHEST. WHILE HANGING THE ANVIS BY THE NECK CORD, KEEP THE OBJECTIVE LENS CAPS ON TO PROTECT THE LENSES FROM BEING SCRATCHED BY THE AIRCRAFT SHOULDER HARNESS METAL OR TWIST THE NECK CORD TO ALLOW THE NVGS TO HANG HIGH ON THE CHEST.

37. 36 END ITEM COMPONENTS OF THE ANVIS

38. 37 ENABLING LEARNING OBJECTIVE # 2 FROM A LIST, SELECT THE DESCRIPTION OF THE ANVIS MONOCULAR COMPONENTS IAW TM 11-5855-263-10

39. 38 MONOCULAR COMPONENTS

40. 39 EYE PIECE LENS ENHANCEMENT 15mm 25mm

41. 40 DESCRIPTION OF THE MONOCULAR COMPONENTS

42. 41 ENABLING LEARNING OBJECTIVE # 3 FROM A LIST, SELECT THE PROPER OPERATIONAL SEQUENCE OF THE ANVIS IAW TM 11-5855-263-10

43. 42 OPERATIONAL SEQUENCE Multiplied Electrons Microchannel Plate Electrons Photocathode Input Window Lens Phosphor Screen 180 degree Twist Eye Piece Lens Output Window Channels 7000 Volts 7000 Volts 6000 TO Object

44. 43 OPERATIONAL SEQUENCE

45. 44 ENABLING LEARNING OBJECTIVE # 4 FROM A LIST, SELECT THE CHARACTERISTICS OF THE ANVIS IAW TM 11-5855-263-10

46. 45 n PASSIVE SYSTEM n VISUAL ACUITY n ASTIGMATISM n MAGNIFICATION n DEPTH PERCEPTION n FIELD OF VIEW (FOV) ANVIS CHARACTERISTICS

47. 46 n TEMPERATURE RANGE n STOWABLE ON THE FLIGHT HELMET n WEIGHT n BREAKAWAY CAPABILITY ANVIS CHARACTERISTICS (CONT.) n FOCAL RANGE

48. 47 FREQUENCY SENSITIVITY

49. 48 MONOCHROMATIC VIEWING

50. 49 CHARACTERISTICS OF THE ANVIS

51. 50 ENABLING LEARNING OBJECTIVE # 5 FROM A LIST, DEFINE THE ANVIS MECHANICAL CONTROL CHARACTERISTICS IAW TM 11-5855-263-10

52. 51 ANVIS MOUNT MECHANICAL CONTROLS

53. 52 VERTICAL ADJUSTMENT KNOB

54. 53 LOCK RELEASE BUTTON

55. 54 CAUTION DO NOT ROTATE THE ANVIS UP OR DOWN WITHOUT USING THE LOCK RELEASE BUTTON.

56. 55 BINOCULAR ASSEMBLY MECHANICAL CONTROLS

57. 56 PIVOT AND ADJUSTMENT SHELF

58. 57 EYE-SPAN KNOB(S)

59. 58 FORE AND AFT ADJUSTMENT KNOB

60. 59 TILT ADJUSTMENT LEVER

61. 60 MONOCULAR ASSEMBLY MECHANICAL CONTROLS

62. 61 OBJECTIVE FOCUS RING

63. 62 EYEPIECE FOCUS RING

64. 63 MECHANICAL CONTROL CHARACTERISTICS

65. 64 ENABLING LEARNING OBJECTIVE # 6 FROM A LIST, PERFORM THE OPERATOR CHECKS FOR THE ANVIS IAW TM 11-5855-263-10

66. 65 NOTE THE AIRCRAFT POWER CONNECTOR CAP DOES NOT AFFECT THE POWER PACK FUNCTION.

67. 66 OPERATION CHECKS n CHECK MAINTENANCE FORMS AND RECORDS n INSPECT THE POWER PACK n INSPECT THE VISOR, MOUNT, POWER CABLE, AND VISOR LINK n INSPECT THE BINOCULAR ASSEMBLY

68. 67 n PERFORM THE LOW-BATTERY INDICATOR TEST n MOUNT THE GOGGLES n APPLY POWER AND LOOK FOR GREEN GLOW IN BOTH EYEPIECES (CHECK OPPOSITE “ON” POSITION) n CHECK FOR OPERATIONAL DEFECTS AND COSMETIC BLEMISHES OPERATION CHECKS (CONT.)

69. 68 TEST SET (TS) 4348/UV

70. 69 AFTER OPERATION CHECKS n PLACE THE SWITCH IN THE OFF POSITION n REMOVE THE BATTERIES n STOW THE POWER PACK IN THE CARRYING CASE WITH THE POWER CABLE FACING UP n REPLACE THE LENS COVERS n ADJUST THE EYE-SPAN DISTANCE TO ALLOW THE BINOCULAR TO FIT INTO THE CASE n INSERT THE OBJECTIVE END FIRST INTO THE CASE n RECORD ANY DISCREPANCIES

71. 70 DA FORM 2408-30 (NVG INSPECTION AND MAINTENANCE RECORD)

72. 71 OPERATOR CHECKS

73. 72 ENABLING LEARNING OBJECTIVE # 7 FROM A LIST, SELECT THE CHARACTERISTICS OF THE LOW BATTERY INDICATOR LIGHT IAW TM 11-5855-263-10

74. 73 LOW BATTERY INDICATOR LIGHT

75. 74 n POSITION n STEADY / BLINKING LOW BATTERY LIGHT CHARACTERISTICS

76. 75 WARNING IF EYEGLASSES ARE WORN, THE UPPER RIMS OF THE EYEGLASSES MAY OBSCURE THE LOW-BATTERY INDICATOR.

77. 76 LOW BATTERY INDICATOR LIGHT

78. 77 ENABLING LEARNING OBJECTIVE # 8 FROM A LIST, SELECT THE METHOD FROM A LIST, SELECT THE METHOD OF CHECKING THE LOW BATTERY INDICATOR IAW TM 11-5855-263-10

79. 78 CAUTION n TO PREVENT DAMAGE TO THE I 2, ALWAYS SET THE POWER PACK SWITCH OFF SET THE POWER PACK SWITCH OFF BEFORE CHANGING BATTERIES, BEFORE CHANGING BATTERIES, CONNECTING THE POWER PACK TO THE CONNECTING THE POWER PACK TO THE VISOR, OR MOUNTING THE ANVIS. VISOR, OR MOUNTING THE ANVIS. n THE LOW BATTERY INDICATOR MUST BE CHECKED IN THE FLIPPED-UP POSITION CHECKED IN THE FLIPPED-UP POSITION OR WITHOUT THE BINOCULAR ATTACHED OR WITHOUT THE BINOCULAR ATTACHED TO THE VISOR MOUNT. TO THE VISOR MOUNT.

80. 79 NOTE AUTHORIZED BATTERIES MAY BE MIXED IN THE POWER PACK

81. 80 LOW BATTERY INDICATOR CHECK

82. 81 CHECKING THE LOW BATTERY INDICATOR

83. 82 ENABLING LEARNING OBJECTIVE # 9 FROM A LIST, SELECT THE METHOD FROM A LIST, SELECT THE METHOD OF MOUNTING THE AVNIS TO THE OF MOUNTING THE AVNIS TO THE HELMET IAW TM 11-5855-263-10 HELMET IAW TM 11-5855-263-10

84. 83 CAUTION KEEP THE PROTECTIVE CAPS ON THE ANVIS WHEN THE ANVIS IS NOT IN USE

85. 84 CAUTION n TO PREVENT DAMAGE TO THE I 2, ALWAYS SET THE POWER PACK SWITCH POSITION OFF BEFORE CHANGING BATTERIES, CONNECTING THE POWER PACK TO THE VISOR OR MOUNTING THE ANVIS. n IF THE ANVIS IS FORCED ON TO THE MOUNT ASSEMBLY INCORRECTLY (UPSIDE DOWN OR BACKWARDS), DAMAGE TO THE VISOR MOUNT COULD RESULT.

86. 85 MOUNTING PROCEDURE

87. 86 MOUNTING THE ANVIS

88. 87 ENABLING LEARNING OBJECTIVE # 10 FROM A LIST, SELECT THE METHOD FOR FLIPPING UP AND FLIPPING DOWN THE ANVIS IAW TM 11-5855-263-10

89. 88 CAUTION DO NOT ATTEMPT TO FLIP-UP OR FLIP-DOWN THE BINOCULAR WITHOUT USING THE LOCK- RELEASE BUTTON. THE BINOCULAR COULD BE DAMAGED OR MAY COME OUT OF THE MOUNT IF THE BUTTON IS NOT USED.

90. 89 NOTE IT IS POSSIBLE TO ADJUST THE VERTICAL ADJUSTMENT KNOB TOO HIGH WHICH WILL NOT ALLOW THE BINOCULARS TO ROTATE INTO THE FULLY DOWN LOCKED POSITION.

91. 90 FLIP DOWN PROCEDURE

92. 91 FLIP UP PROCEDURE

93. 92 FLIPPING UP AND FLIPPING DOWN THE ANVIS

94. 93 ENABLING LEARNING OBJECTIVE # 11 FROM A LIST, SELECT THE METHOD OF POWERING THE ANVIS IAW TM 11-5855-263-10

95. 94 CAUTION DO NOT EXPOSE THE ANVIS TO BRIGHT LIGHTS WHEN THE ANVIS HAS POWER. OPERATE ANVIS ONLY IN A DARKENED ENVIRONMENT.

96. 95 NOTE TURN OFF POWER SWITCH BEFORE CONNECTING POWER CABLES

97. 96 POWERING PROCEDURE

98. 97 METHOD OF POWERING THE ANVIS

99. 98 ENABLING LEARNING OBJECTIVE # 12 FROM A LIST, SELECT THE METHOD OF ADJUSTING THE ANVIS IAW TM 11-5855-263-10

100. 99 ADJUSTING ANVIS FOR OPERATION n OPTIMAL SIGHT ADJUSTMENT POINT (OSAP) PROCEDURE n TILT LEVER ADJUSTMENT

101. 100 NOTE n ADJUST THE ANVIS ONLY IN A DARKENED ENVIRONMENT WITH SUFFICIENT AMBIENT LIGHT AND DISTINCT GEOMETRIC FORMS TO VIEW. n IF THE AVAILABLE BACKGROUND IS NOT REASONABLY UNIFORM, TURN THE OBJECTIVE FOCUS RING CLOCKWISE TO BLUR THE IMAGE OBTAINING A RELATIVELY UNIFORM BRIGHTNESS.

102. 101 NOTE n PERFORM THIS PROCEDURE WITH A PROPERLY COUNTER-BALANCED HELMET. n IF PROPER VERTICAL ALIGNMENT CANNOT BE ACHIEVED WITHOUT MOVING THE TILT LEVER FROM ITS MIDDLE POSITION, RETURN THE HELMET TO ALSE FOR ADJUSTMENT. n DISREGARD FOCUSING AT THIS TIME, IT IS BETTER TO HAVE THE OBJECTIVE LENS OUT OF FOCUS FOR THIS PROCEDURE.

103. 102 NOTE n WHEN THE GOGGLES ARE AT THE MAXIMUM DISTANCE FROM THE EYES THAT STILL PERMITS A FULL FIELD OF VIEW, THE EDGES WILL BLUR SLIGHTLY WHEN YOU ARE LOOKING DIRECTLY AT THEM AND THEY WILL CLEAR WHEN LOOKING AT THE CENTER OF THE IMAGE. THIS IS DUE TO THE PUPIL OF THE EYE MOVING AWAY FROM THE OPTICAL AXIS OF THE GOGGLES.

104. 103 OPTIMAL OPTIMAL SIGHT SIGHT ADJUSTMENT ADJUSTMENT POINT POINT OSAP PROCEDURE

105. 104 TILT LEVER ADJUSTMENT

106. 105 ADJUSTING THE ANVIS

107. 106 ENABLING LEARNING OBJECTIVE # 13 FROM A LIST, SELECT THE METHOD OF FOCUSING THE ANVIS IAW TM 11-5855-263-10

108. 107 CAUTION n DAMAGE TO THE MONOCULAR HOUSING AND / OR OBJECTIVE LENS CAN RESULT IF DISTANCE FOCUS IS ADJUSTED HOLDING THE LIF INSTEAD OF THE OBJECTIVE FOCUS RING. n WHILE SETTING THE EYEPIECE FOCUS, A CLEAR IMAGE MAY BE ACHIEVED AND YET DEVELOP EYESTRAIN, PERIODIC BLURRED VISION AND HEADACHES IF THE FOCUSING PROCEDURE IS NOT COMPLETED PROPERLY.

109. 108 NOTE n PERFORM THE FOCUSING PROCEDURES IN A DARK AREA, BUT WITH SUFFICIENT LIGHT SO THE ANVIS OPERATES WITHOUT APPRECIABLE VISUAL NOISE (SCINTILLATION). n IT IS NOT IMPORTANT TO BEGIN FOCUSING FROM THE LEFT OR RIGHT MONOCULAR AS LONG AS ALL STEPS ARE COMPLETED FOR BOTH MONOCULARS.

110. 109 FOCUSING THE ANVIS n INDOOR PROCEDURE n OUTDOOR PROCEDURE

111. 110 CAUTION BE CAREFUL NOT TURN THE EYEPIECE FOCUS RINGS TOO FAR CLOCKWISE IN THE MINUS DIOPTER DIRECTION ("OVER MINUS"). TRY TO "PLUS-UP" THE DIOPTERS.

112. 111 NOTE INDIVIDUALLY DETERMINED DIOPTER SETTINGS CAN BE USED. EXPECT TO MAKE MINOR ADJUSTMENTS FROM THAT KNOWN SETTING.

113. 112 INDOOR FOCUS PROCEDURE

114. 113 NOTE USE THE FOLLOWING PROCEDURE WITH A HIGH-CONTRAST TARGET 100 TO 200 FEET AWAY TO ACCOMPLISH FINAL ADJUSTMENT OF THE OBJECTIVE FOCUS FOR EACH MONOCULAR. USE THE FOLLOWING PROCEDURE WITH A HIGH-CONTRAST TARGET 100 TO 200 FEET AWAY TO ACCOMPLISH FINAL ADJUSTMENT OF THE OBJECTIVE FOCUS FOR EACH MONOCULAR.

115. 114 OUTDOOR FOCUS PROCEDURE

116. 115 FOCUSING THE ANVIS

117. 116 ENABLING LEARNING OBJECTIVE # 14 FROM A LIST, SELECT THE METHOD OF DISMOUNTING THE ANVIS IAW TM 11-5855-263-10

118. 117 CAUTION WHEN REMOVING THE BINOCULAR FROM THE MOUNT DO NOT PULL WITH A TWISTING MOTION. THIS WILL DAMAGE THE MECHANISM IN THE PAS OR CRACK THE VISOR MOUNT.

119. 118 DISMOUNTING PROCEDURE

120. 119 DISMOUNTING THE ANVIS

121. 120 ENABLING LEARNING OBJECTIVE # 15 FROM A LIST, DEFINE THE TYPES OF VISUAL DEFICIENCIES OF THE ANVIS IAW TM 11-5855-263-10

122. 121 CAUTION INSPECT THE ANVIS FOR VISUAL DEFECTS IN THE DARK AFTER COMPLETING THE ADJUSTING AND FOCUSING PROCEDURE. USE THE PRIMARY (UPPER) ON POSITION. DO NOT USE THE ALTERNATIVE (LOWER) COMPARTMENT WITH THE FRESH (NO- TIME) BACK-UP BATTERY. LOOK THROUGH THE BINOCULARS BY VIEWING ONE MONOCULAR AT A TIME. INSPECT THE ANVIS FOR VISUAL DEFECTS IN THE DARK AFTER COMPLETING THE ADJUSTING AND FOCUSING PROCEDURE. USE THE PRIMARY (UPPER) ON POSITION. DO NOT USE THE ALTERNATIVE (LOWER) COMPARTMENT WITH THE FRESH (NO- TIME) BACK-UP BATTERY. LOOK THROUGH THE BINOCULARS BY VIEWING ONE MONOCULAR AT A TIME.

123. 122 n OPERATIONAL DEFECTS n COSMETIC BLEMISHES TYPES OF VISUAL DEFICIENCIES

124. 123 VISUAL DEFICIENCIES

125. 124 ENABLING LEARNING OBJECTIVE # 16 FROM A LIST, SELECT THE OPERATIONAL DEFECTS OF THE ANVIS IAW TM 11-5855-263-10

126. 125 WARNING DO NOT FLY WITH AN ANVIS THAT HAS HAD A DEFECT IDENTIFIED. RETURN THE ANVIS TO THE NVG MAINTAINER.

127. 126 n SHADING n EDGE GLOW n FLASHING, FLICKERING OR INTERMITTENT OPERATIONS OPERATIONAL DEFECTS

128. 127 SHADING

129. 128 NOTE MAKE SURE THE SHADING IS NOT THE RESULT OF IMPROPER TILT, EYE-SPAN ADJUSTMENT, OR VERTICAL ADJUSTMENT.

130. 129 EDGE GLOW

131. 130 FLASHING, FLICKERING OR INTERMITTENT OPERATIONS

132. 131 OPERATIONAL DEFECTS

133. 132 ENABLING LEARNING OBJECTIVE # 17 FROM A LIST, SELECT THE COSMETIC BLEMISHES OF THE ANVIS IAW TM 11-5855-263-10

134. 133 NOTE COSMETIC BLEMISHES ARE ACCEPTABLE IF THEY DO NOT INTERFERE WITH THE ABILITY TO VIEW THE IMAGE AND / OR THE ABILITY TO PERFORM THE MISSION.

135. 134 n BRIGHT SPOTS / EMISSION POINTS n BLACK SPOTS n CHICKEN WIRE n IMAGE DISTORTION n FIXED PATTERN NOISE n IMAGE DISPARITY n OUTPUT BRIGHTNESS VARIATION BLEMISHES

136. 135 BRIGHT SPOTS / EMISSION POINTS

137. 136 BLACK SPOTS

138. 137 CHICKEN WIRE

139. 138 IMAGE DISTORTION

140. 139 FIXED-PATTERN NOISE

141. 140 IMAGE DISPARITY

142. 141 OUTPUT BRIGHTNESS VARIATION

143. 142 COSMETIC BLEMISHES

144. 143 ENABLING LEARNING OBJECTIVE # 18 FROM A LIST, IDENTIFY THE CARE AND CLEANING STEPS OF THE ANVIS IAW TM 11-5855-263-10

145. 144 CAUTION DO NOT SCRATCH OR TOUCH THE EXTERNAL LENS SURFACES. DO NOT USE ABRASIVE MATERIALS TO CLEAN THE GOLD-PLATED ELECTRICAL CONTACTS.

146. 145 CLEANING STEPS n GENTLY BRUSH OFF ANY DIRT n GENTLY WIPE THE EXTERNAL SURFACES (EXCEPT LENSES) n DRY ANY WET SURFACES (EXCEPT LENSES) n CAREFULLY REMOVE ALL LOOSE DIRT FROM LENSES n STORE NVGS IN A CLEAN, DRY CARRYING CASE

147. 146 CAUTION n ADJUST THE EYESPAN KNOB(S) TO FIT THE ANVIS INTO THE CASE n INSERT THE OBJECTIVE END INTO THE CARRYING CASE FIRST n DO NOT FORCE THE ANVIS INTO THE CASE n INSTALL LENS CAPS WHEN NOT IN USE n ALWAYS REMOVE THE BATTERIES FROM THE POWER PACK

148. 147 CLEANING STEPS

149. 148 ENABLING LEARNING OBJECTIVE # 19 FROM A LIST, IDENTIFY THE CARE AND CLEANING STEPS OF THE ANVIS FOR ADVERSE ENVIRONMENTAL CONDITIONS IAW TM 11-5855-263-10

150. 149 n SALTWATER ENVIRONMENT n DUST OR SAND ENVIRONMENT n HOT, HUMID, AND RAIN ENVIRONMENT n ARCTIC ENVIRONMENT n NBC ENVIRONMENT ADVERSE ENVIRONMENTAL CONDITIONS

151. 150 SALTWATER ENVIRONMENT

152. 151 DUST OR SAND ENVIRONMENT

153. 152 HOT, HUMID, RAIN, OR ARCTIC ENVIRONMENT

154. 153 NBC ENVIRONMENT

155. 154 ADVERSE ENVIRONMENTAL CONDITIONS

156. 155 END ITEM COMPONENTS OF THE ANVIS END ITEM COMPONENTS OF THE ANVIS DESCRIPTION OF THE MONOCULAR COMPONENTS DESCRIPTION OF THE MONOCULAR COMPONENTS OPERATIONAL SEQUENCE OPERATIONAL SEQUENCE CHARACTERISTICS OF THE ANVIS CHARACTERISTICS OF THE ANVIS MECHANICAL CONTROL CHARACTERISTICS MECHANICAL CONTROL CHARACTERISTICS OPERATOR CHECKS OPERATOR CHECKS LOW BATTERY INDICATOR LIGHT LOW BATTERY INDICATOR LIGHT CHECKING THE LOW BATTERY INDICATOR CHECKING THE LOW BATTERY INDICATOR MOUNTING THE ANVIS MOUNTING THE ANVIS FLIPPING UP AND FLIPPING DOWN THE ANVIS FLIPPING UP AND FLIPPING DOWN THE ANVIS

157. 156 ADJUSTING THE ANVIS ADJUSTING THE ANVIS FOCUSING THE ANVIS FOCUSING THE ANVIS DISMOUNTING THE ANVIS DISMOUNTING THE ANVIS VISUAL DEFICIENCIES VISUAL DEFICIENCIES OPERATIONAL DEFECTS OPERATIONAL DEFECTS COSMETIC BLEMISHES COSMETIC BLEMISHES CLEANING STEPS CLEANING STEPS ADVERSE ENVIRONMENTAL CONDITIONS ADVERSE ENVIRONMENTAL CONDITIONS METHOD OF POWERING THE ANVIS METHOD OF POWERING THE ANVIS

158. 157