This article was taken
from the Daily Mail (internet newspaper) and has some facts in it, but it also
has some ridiculous comments about pilots feeling an out-of-body experience
while flying. Ahart
Aviation in no way promotes this type of experience. If you
ever have an out of body experience while flying, it might be a good idea to
stop flying…..
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Pilots' 'out-of-body experiences' responsible for more than a quarter of
fatal air crashes
By RICHARD SHEARS Last updated at 16:24pm on
5th December 2007
Some pilots will suffer the illusion that they are sitting
on the wing of their aircraft watching themselves in the cockpit, according to
an extraordinary official report released in Australia.
Every pilot will at some stage lose all sense of direction, height and
speed, drawing attention to spatial disorientation (SD) – one of the most
common factors in plane crashes, according to a report by the Australian
Transport Safety Bureau.
Aviation medicine specialist Dr David Newman said 90 to 100 per cent of
pilots experienced SD, which have been linked to between 15 and 26 per cent of
fatal crashes worldwide.
Dr Newman drew attention to the illusion suffered by some pilots who gained
the impression of sitting on the wing looking at themselves
flying the aircraft, but there were other dangerous misconceptions including a
feeling that the plane was falling when it was merely slowing down.
Another effect of SD was a false sensation of the aircraft rolling and
another illusion suggesting the plane was flying straight ahead when it was
actually turning.
Drawing attention to the "sitting on the wing" illusion, Dr Newman
added: "The knife-edge illusion gives the pilot a sensation that the
aircraft is precariously positioned in space and extremely sensitive to control
inputs."
But he also referred to what he called the "giant hand illusion,"
which gives the pilot the sensation that the aircraft is "intolerable of
control inputs and seemingly immovable in the air, as if held aloft by a giant handall."
The illusions, he said, often occurred when pilots were not busy while
flying the plane.
Victim of SD: The plane John F Kennedy Jr piloted
crashed into the Atlantic Ocean
"While seemingly bizarre, these illusions are generally associated with
high altitude flight where the pilot has a relatively low level workload."
"Under such 'fish bowl' conditions, the brain can wander and generate
these strange illusions."
Dr Newman's report said pilots should be aware they will experience SD
sooner or later.
"If
a pilot flies long enough as a career or even a hobby there is almost no chance
that he or she will escape experiencing at least one episode of SD."
"Looked at another way, pilots can be considered to be in one of two
groups: those who have been disorientated and those who will be."
The specialist said he issued the warning so that pilots could take measures
to reduce the impact of SD by flying when fit.
They should not fly under the influence of alcohol or medications, which
increase awareness of spatial disorientation illusions.