Description
Night Vision Goggles/Image Intensifier Set AN/AVS-9 (F4949 Series)
ITT Industries Night Vision, the world's leading producer of Generation (Gen) 3 night vision devices, offers the AN/AVS-9 (ITT F4949 Series) Night Vision Goggle/Image Intensifier Set with various objective lens filter options and various flight helmet-mount configurations – all designed to meet individual customer requirements.
Manufacturer Part Number: F4949
Features
Gen 3-tube performance offering high resolution, high gain, and photoresponse to near infrared, and exceptional reliability.
Class A, B, C, and UK 645 minus-blue filters for objective lens available to suit all types of cockpit lighting, including color displays and fighter HUDs.
Helmet mount configurations designed for fixed-wing and rotary-wing applications, adapting to most aviator helmets (U.S. HGU-55/P, HGU-56/P, HGU-84/P, SPH-4AF, SPH-4B, SPH-5; British Alpha 202 and Mk4; French OS and CGF). Other mounts available upon request.
25-mm eye-relief eyepieces easily accommodate eyeglasses.
Low-profile battery pack improves aviator head mobility and increases battery life.
Other features include flip-up/flip-down capability, simple binocular attachment, individual interpupillary adjustment, tilt, vertical and fore-aft adjustments to fit all aviators.
Standard Accessories: Carrying case tailored to system, lens caps Lens paper Operator’s Manual Helmet attachment instructions, Neck cord (rotary-wing versions) Low-profile battery pack (rotary wing versions)
Optional Accessories: Battery pack adapter (fixed-wing versions), Low-profile battery pack (fixed-wing versions), Clip-on power source.
Rotary-wing versions of the F4949 feature a rear-mounted, low-profile battery pack, which uses four AA alkaline batteries, allowing operation for more than 50 hours. Power is provided by a cable extending from the battery pack, over the helmet, and into a connector in the mount.
Fixed-wing versions feature a front-mounted battery pack, which uses two 1/2 AA lithium batteries that allow operation for more than 16 hours. An optional battery pack adapter enables connection of the fixed-wing F4949 to the rear-mounted battery pack, providing the same operational time as the rotary-wing versions when ejection is not a consideration. An optional clip-on power source enables hand-held operation of the binocular without use of a flight helmet.
ITT's F4949 series of aviator's night vision systems is available in over 40 different configurations. The type of aircraft and type of helmet being used will determine which configuration – existing or customized – will best meet our customer's requirements.
Specifications
- Spectral Response Visible to 0.90 μm (IR)
- Field of View 40° nominal
- Magnification Unity
- Resolution 1.3 cy/mr, minimum (1.36 typical)
- Brightness Gain 5500 fL/fL, minimum
- Collimation ≤1° convergence
- ≤0.3° divergence/divergence
- Interpupillary Adjustment Independent, 51 to 72 mm total
- Vertical Adjustment 25 mm, range
- Fore-and-Aft Adjustment 27 mm, range
- Tilt Adjustment 10°, range
- Objective Lens EFL 25 mm F/1.23, T/1.35
- Objective Lens Filters Class A, B, C, UK 645 available
- Objective Lens Focus Range 41 cm to infinity
- Eyepiece Lens EFL 27 mm
- Eyepiece Exit Pupil/Eye Relief On-axis: 14 mm @ 25-mm distance
- Full-field: 6 mm @ 25-mm distance
- Eyepiece Adjustment +2.0 to -6.0 Diopters
- Flip-up/Flip-down Button release
- Automatic Breakaway 11 to 15 g
- Battery Type Fixed wing: 2 ea. 1/2 AA size, lithium
- Rotary wing: 4 ea. AA size, alkaline
- Weight of Binocular 550 grams
- Weight of Mount
- Fixed Wing 250 grams
- Rotary Wing 330 grams
- Operating Temperature Range -32°C to +52°C
