HP Flashcards
(125 cards)
percentage of aircraft accidents due to human errors
50% to 75%
vision - located mostly along the rear part of the retina; form 100% of the fovea
cones
vision - color vision
cones
vision - perceive details
cones
vision - long range and short range vision
cones
vision - operative in daylight, inoperative in darkness
cones
vision - called central or foveal vision
cones
vision - located mostly along the outer parts of the retina; absent from the fovea
rods
vision - black and white vision
rods
vision - perceive only basic shapes but excellent at detecting movement
rods
vision - short range vision only
rods
vision - operative in both daylight and darkness
rods
vision - called peripheral or ambient vision
rods
using central vision, it is possible to identify an object as far as
7 miles
peripheral vision is restricted to about ______, but easily detect moving objects
0.7 mile
an aircraft that shows no relative motion and remains on a fixed spot on your windshield is on a
collision course
normal vertical vision field
60deg up 75deg down
normal horizontal vision field
60deg nasal 100deg temporal
a misinterpretation by the brain of what is perceived by the eyes
visual illusions
a small, single point of light seen against a dark background can appear to move, when it actually remains stationary
autokinesis
this illusion occurs when the natural horizon is obscured or not readily apparent
false horizon
this illusion is caused by flying over a banked cloud, night flying over featureless terrain with ground lights that are indistinguishable from a dark sky with stars, or night flying over a featureless terrain with a clearly defined pattern of ground lights and a dark, starless sky
false horizon
pilots learn to recognize a normal final approach by developing and recalling a mental image of the expected relationship between the length and width of an average runway
landing illusions
illusion - result, upslope runway or terrain
greater height - lower approaches