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NVS 6
PILOT NIGHT VISION
GOGGLES
MAINTENANCE AND OPERATION
MANUAL
In USA: 3310 Prospect Ave. Cleveland, OH 44115
In Canada: 1183 Finch Ave. W., Suite 302, Toronto, ON M3J 2G2 Canada
Tel: (416) 663-6963 Fax: (416) 663-9065
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NVS 6 MANUAL IMPORTANT INFORMATION Read prior to activation You have just purchased a complicated electronic device. To operate it properly, please read this manual carefully. Here are some common precautions that must be noted. • NEVER disassemble the unit. This device contains high voltage, which may be hazardous to your health! • NEVER expose the opened objective lens of an active unit in daylight. At daytime objective lens must be covered by caps. There is a tiny hole in
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NVS 6 MANUAL RECORD OF REVISIONS Page Rev. Section, Authorizing Transmittal letter No. Sub-Section, Document Reference No. Signed Date Revi- Dele- Added Subject No. and date by sed ted Page 2
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NVS 6 MANUAL LIST OF EFFECTIVE PAGES Section, Section, Sub-Section, Sub-Section, Page Date Page Date Subject Subject Title Page – – 23 24 Record of 1/2 25 Revisions 26 List of Effective 1/2 27 Pages 28 29 Table of Contents 1/2 30 General 1 31 2 32 Main Data 3 33 4 34 Standard Set 5 35 6 Operation Proce- 36 Safety Precautions 7 dure 37 Design of Unit and 8 Operational 38 Its Components 9 Stat
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NVS 6 MANUAL TABLE OF CONTENTS Page 1 General........................................................................................................ 1 2 Main Data .................................................................................................... 3 3 Standard Set................................................................................................ 5 4 Safety Precautions....................................................................................... 7
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NVS 6 MANUAL 1 General 1.1 The NVS 6, helicopter night-vision goggles, have been designed for use by the helicopter crewmembers during execution of flights at night. Note – The helicopter cockpit should be tailored for the use of the night-vision goggles. Accounting for the spectral content of the light equipment radiation, color of the cockpit interior surfaces, and the like. 1.2 The NVS 6 provides napping off the earth while piloting the helicopter at low altitudes, at takeoff, hover
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NVS 6 MANUAL 1.7 The trouble-free operation of the NVS 6, within the assigned service life, is ensured through its correct use, careful handling and well- timed maintenance. 1.8 When operating the unit or placing it in storage, keep it clean and avoid touching the external optical surfaces of the lenses and eyepieces with fingers. Protect the unit against impact or dropping which may cause damage and defects to the unit and render it inoperable. 1.9 Before using the NVS 6, carefully read
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NVS 6 MANUAL 2 MAIN DATA 2.1 Specifications of the NVS 6 are presented in Table 1. Table 1 Specification Characteristic 1 Field of view (FOV), minimum 40 deg 2 Magnifying power 1 X 3 Resolving power limit of the image intensifier 50 lines per mm tube, as measured in the center of FOV, minimum 4 Dioptric setting range of eyepieces, minimum -6/+2 D 5 Interpupilary distance range 52 to 72.7 mm 6 Lens focusing distance range 0.25 m to infinity 7 Power supply: – From helicopter DC ele
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NVS 6 MANUAL Table 1, cont'd Specification Characteristic 11 Continuous operation time followed by an 3 h interval of not less than 30 min, minimum 12 Unit deployment time (getting the unit ready 5 min for use), maximum 13 Unit stowing time (packing the unit in the 5 min case), maximum 14 Mass, maximum: – Night-vision goggles (without mount) 0.59 kg – Voltage converter with cable 0.3 kg 15 Night-vision goggles overall dimensions, 108x151.5x122 mm maximum Page 4
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NVS 6 MANUAL 3 STANDARD SET 3.1 The standard set of the NVS 6 shall be consistent with Table 2 and Fig. 3.1. Table 2 Designation Nomenclature Qty Remarks Assemblies 201211.010 Night-vision goggles 1 433739.003 Voltage converter 1 Set of Spare Parts 279376.002 Dehydrator cartridge 1 Optional Set of Tools and Accessories Watchmaker’s 1 Optional screwdriver MT-992, size 1.5 754421.001 Test pattern 1 Optional Optional Batteries of type size 4 AA R6 1.5 V 304134.001 Mount 1
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NVS 6 MANUAL 8 7 12 1 10 9 2 11 6 3 4 5 7 Mount 1 Night-Vision Goggles 8 Casing 2 Voltage Converter 9 Clamp 3 Dehydrator Cartridge 10 Counterweight 4 Screwdriver 11 Cloth 5 Test Pattern 12 Case 6 Batteries NVS 6 Standard Set Figure 3.1 Page 6
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NVS 6 MANUAL 4 SAFETY PRECAUTIONS 4.1 The NVS 6 is constructed so as to provide pilot’s safety during operation. 4.2 In case of emergency the helicopter crewmembers shall take off (throw off) the NVS 6 night-vision goggles before evacuating the helicopter. To ensure successful removal of the unit, the crewmember using the NVS 6 in flight should be trained to quickly execute the night-vision goggles. In an emergency evacuation from the helicopter expedient removal is essential for his/
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NVS 6 MANUAL 5 DESIGN OF UNIT AND ITS COMPONENTS 5.1 The NVS 6 is essentially a passive-type optoelectronic night- vision device whose principle of operation is based on the intensification of image brightness of objects being viewed with the aid of image- intensifier tubes. 5.2 The NVS 6 design employs a binocular pattern, i.e. it consists of two identical optoelectronic channels (of monocular type) which afford stereoscopic vision to create comfortable conditions for napping off the ea
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NVS 6 MANUAL 7 18 20 19 6 4 17 8 16 13 9 1 10 12 14 2 3 5 15 11 1 Lens 11 Cable 2 Eyepiece 12 Cap 3 Ring 13 Dehydrator Cartridge 4 Guide 14 Sight Glass 5 Cap-Switch 15 Cable 6 Fixing Assembly 16 Screw 7 Mount 17 Visor Guard 8 Casing 18 Slot 9 Counterweight 19 Cross-Shaped Knob 10 LVC (Low-Voltage Converter) 20 Screw NVS 6 Figure 5.1 Page 9
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NVS 6 MANUAL For balancing out the overturning momentum produced by the unit in the operating position, use is made of counterweight (9) secured on the rear portion of the helmet. The helmet should be tailored for employment of the night-vision goggles. For this purpose, the standard casing should be replaced and the strip of the sticking fastener should be bonded to the helmet rear surface for attachment of the counterweight (the necessary appliances are included in the set of spare pa
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NVS 6 MANUAL 16 13 14 15 22 21 17 18 9 1 10 4 В 3 Б Б А А В 2 5 7 8 6 10 12 19 20 10 1 19 1 Guide 9 Screw 16 Cable 2 Guide 10 Button 17 Lever 3 RH Side Monocular 11 Batteries 18 Knob 4 LH Side Monocular 12 Cap-switch 19 Screw 5 Lens 13 Fixing Assembly 20 Plate 6 Eyepiece 14 Retainer 21 Retainer 7 Image-Intensifier Tube 15 Button 22 Retainer 8 Barrel Night-Vision Goggles Figure 5.2
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NVS 6 MANUAL Physically, the night-vision goggles are made in the form of two identical electro-optical channels – monocular (3) and monocular (4) – which are mechanically linked with each other with the aid of guide (1) and guide (2). Each of the monocular pair incorporates lens (5), eyepiece (6), image-intensifier tube (7) and barrel (8). RH side monocular (3) that allows the pilot to carry out observation with the right eye is rigidly fastened to guide (2), while LH side monocular (4)
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NVS 6 MANUAL Knob (18) provides a means of individual adjustment of the monocular position (eye relief, tilt of the monocular pair optical axes, and displacement of the monocular pair in the upward and downward directions). The monocular pair is locked in the selected position by moving the knob down as far as it will go. This securely locks the monocular pair in this position. The force applied for tightening the knob is adjustable. This adjustment is performed after releasing the hing
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NVS 6 MANUAL The design of the LVC is illustrated in Fig. 5.3. Structurally, the LVC consists of casing (1), which accommodates voltage converter (2) attached to it by means of screws (3). Cover (4) is fastened to the casing with screws (5). Connector plug (6) serves to connect the LVC to the helicopter electrical system of 27 V with the aid of the cable arranged on board the aircraft. Connector receptacle (7) is intended to connect cable (11), shown in Fig. 5.1, to the LVC. Connector
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NVS 6 MANUAL 4 1 3 8 7 5 2 А1 XS1 XP1 9 6 1 Casing 4 Cover 7 Connector Receptacle 2 Voltage Converter 5 Screw 8 Screw 3 Screw 6 Connector Plug 9 Gasket Low-Voltage Converter Figure 5.3 Page 15 27 V LVG
