NVG Mnemonics Flashcards
Weather
Ceiling/Visibility
Cloud Clearance
Winds
Tactical flight mission planning
Analyze the mission
Map/photo reconnaissance
Select terrain flight mode & techniques of movement
Select appropriate primary and alternate routes
Determine distance and ETE
Fuel
Weather brief, obtain & analyse
Crew brief
Dark adaptation
Definition
Starting level
Sensitivity
Time to adapt
Time to readapt
Employ ANVIS
Conduct operators checks
Properly mount ANVIS on the helmet
Adjust ANVIS to obtain OSAP
React to ANVIS failure
Announce ANVIS failure by crew station
Transfer flight controls if applicable
Troubleshoot ANVIS failure
Announce result of troubleshooting
Night vision protection
Red lighting/red lense goggles
Supplemental oxygen
Sunglasses
Protective measures
Cockpit light adjustment
Exterior light adjustment
Light flash compensation
- Turn away from light source
- Close or cover one eye
- Aerial weapons systems - time expending ordnance should be limited
- Automatic weapons systems - use short bursts
Night vision techniques
Scanning
Off Center vision
Shapes & silhouettes
NVG characteristics
Definition
Intensification
Acuity
Limited field of view
Voltage low indicator
Power supply
Night central blind spot
Central or night blind spot
Scotopic vision
Peripheral vision
Operational defects
Shading
Edge glow
Emission points
Flashing/Flickering, intermittent operation
Cosmetic blemishes
Image distortion
Image disparity
Bright spots
Black spots
Chicken wire
Fixed pattern noise
Output brightness variation
NVG operational considerations
Color discrimination
Air/ground speed limits
Lights and lighting
- Performance relations
- Effects of bright lights
- ABC
- BSP
- Tunnel Vision
Magnification
Weather
Weapons
Aircraft lighting
Depth perception and distance estimation
- Degree of contrast
- Available light
- Type of NVDs
- Experience
Scanning techniques
Obstruction detection
Spatial disorientation
Visual Illusions
Confusion with ground lights
Height-depth perception
Autokinesis
False horizon
Fascination/fixation
Vection
Crater illusion
Structural illusion
Size distance illusion
- Aerial perspective
- size constancy
- shape constancy
Monocular cues
Geometric perspective
- Linear perspective
- Apparent foreshortening
- Vertical position in the field
Retinal image size
- Known size of Object
- Increasing/decreasing size
- Terrestrial association
- Overlapping contours
Aerial perspective
- Fading of colors and shapes
- Loss of detail and texture
- Position of light source and shadow
Motion parallax
