Helicopter Night Vison Goggle Operation (HNVGO) Flashcards
May you turn off aircraft exterior lighting during HNVGO operations.
Only AC and strobes
May you modify the aircraft exterior light, by taping them for instance?
No
Must you utilize an aircraft landing light, search lights or night sun for takeoff and landings under HNVGOs?
Yes unless environmental elements such as snow
Is it acceptable to accept a flight under NVGs, that you would not accept for unaided flight, given weather?
No
What weather minimums are necessary for both local and cross country flight conducted as HNVGO?
Non-Mountain
Local - 800/3
XC - 1000/3
Mountain
Local - 1000/3
XC - 1000/5
You are provided an aircraft with a tail number. Before performing a preflight on the aircraft, where would you look to verify that you are LEGAL, to operate this aircraft in commercial operations under FAR Part 135?
A003 - Aircraft authorization
D085 - Aircraft listing
How low may you operate when conducting HNVGO?
En route - > 500’ AGL
Only take off / Landing - 300’ AGL
In order to remain recent in NVG flight, how frequently must you perform HNVGO?
Passengers - 6 HNVGOs within current month plus 2 calendar months
PIC - 6 HNVGO current month and the preceding 4 calendar months
What is mean by the term “HNVGO”?
• A before-takeoff check, takeoff, climb out, cruise, descent, approach phase of flight, and landing
• Hovering tasks
• Area departure and arrival tasks (initial reconnaissance)
• Transitioning from aided to unaided and back
- same category and class
- 1hr after sunset to 1hr before sunrise
When conducting the preflight NVG checks what guidance must be used?
NVG Pre-operation checklist - Form 5415
What is the field of view expected when utilizing NGVs?
40 deg
What type of vision do you utilize when utilizing NVGs?
Photopic
OPSPEC A050 specifies weather minimums for HNVGO operations. Are they applicable to Air Methods Pilots?
Yes
How long can you expect it to take to re-dark adapt after utilizing NVGs?
3-5 minutes
What are a few self-imposed stresses that might impact your ability to safely conduct operations, including night and NVG operations?
Drugs
Alcohol
Tobacco
Exhaustion
Name five visual illustrations that you might experience at night:
Flicker Vertigo
False horizon
Fixation
Autokenisis
Slope terrain illusion
What might cause you to experience spatial disorientation while utilizing NVGs?
Inexsperience
Lack of currency
Fatigue
Stress
Night Visual Illusion
(Fire Fire Fire)
F -False Horizon
F - Flicker Vertigo
F - Fixation
C - Confusion with ground
R - Relative Motion
A - Autokinesis
S - Structural Illusion
H - Height Perception illusion
(Search and Rescue)
S - Size / Distance illusion
A - Altered planes of Reference
R - Reversible Perception Illusion
What common NVG malfunction would render them unsuitable for operations.
Shading
Edge glow
Flashing
Flickering
Intermittent operation
Vailing Glair
What common NVG malfunction might be acceptable depending upon the severity?
Image distortion
Image disparity
Veiling glare
Bright Spots
Black Spots
Chicken wire
Fixed pattern noise
Who may conduct Flight Training for Crew Members?
NVG qualified and current PIC
What flight training must take place to qualify a Crew Member?
Must complete:
Initial
Recurrent
Requalifying
Transition training
What are NVG currency requirements for crew?
3x HNVGOs conducted in the preceding 6 months
What monocular cues do we use to estimate distance and depth?
Loss of detail and texture
Lights and shadow
Motion parallax
Geometric perspective
Linear perspective
Vertical position in field
Known size increases or decreases
