illusions Flashcards
What is empty field myopia
Eyes will focus at default ( 3 to 4m )
Pilot will think they are looking outside, they only see the front of the plane.
What is the recommended scanning rate
No more than 10 degrees per second
How long is our reaction time when looking?
Time between seeing and doing something
About 1 1/2 seconds
What does ground sloping up to the runway lead to?
What does ground sloping down to the runway lead to?
Sloping up to runway = think too high
Sloping down to runway = think too low
Risks of a black hole approach
No peripheral vision
Risk of landing short
Runway can appear to move
When there are only runway lights and no other cues - worst black hole approach
Stages of increasing g force
Grey out
Tunnel vision
Black out
GLOC
What is the illusion with runway width?
Narrow than usual = illusion I am higher
Wider than usual = illusion I am lower
What is autokinesis?
Occurs when no visual cues
A small dim light, like a star, or ground light can be seen to move.
You can follow it.
What is Nystagamus?
What illusion happens?
Slow then rapid eye movements.
During the rapid eye movement you don’t see.
Hence Scan rate
What are Somatogral illusions?
Angular illusions
“The Leans”
“Spiral Dive”
“Flat Turn”
What are Somatogravic illusions
Linear illusions
Nose up on Acceleration
Nose Down on Deceleration
Inversion on Fast level Off feels upside down
What are Cross Coupled Turns
Coriolis illusion
Constant Turn + rapid head tilt back or forward
Leads to disorientation
Hold charts up to eye level instead of looking down
What detects motion of your body
Vestibular system ( inner ear )
What is the rapid eye movement between fixed points called?
Nystagamus
What is vection illusion?
Focal illusions - an example when another object moves, but you think it is you
What does an upward sloping runway lead to?
What does a downward sloping runway lead to?
Upward sloping runway = I think high
Downward sloping runway = I think low
