Katana VentraIP

Sensory illusions in aviation

Human senses are not naturally geared for the inflight environment. Pilots may experience disorientation and loss of perspective, creating illusions that range from false horizons to sensory conflict with instrument readings or the misjudging of altitude over water.

false visual reference illusion (upsloping cloud tops)

1965 Carmel mid-air collision

spatial disorientation (controversial)

1999 Martha's Vineyard plane crash

graveyard spiral (pilots preoccupied with unrelated equipment failure)

Adam Air Flight 574

black-hole approach illusion

Alitalia Flight 4128

black-hole approach illusion

AIRES Flight 8250

the leans

Air India Flight 855

head-up illusion

Afriqiyah Airways Flight 771

head-up illusion

Atlas Air Flight 3591

the leans

Copa Airlines Flight 201

spatial disorientation (controversial)

The Day the Music Died

the leans (controversial)

Flash Airlines Flight 604

head-up illusion

Gulf Air Flight 072

false visual reference illusion (featureless terrain indistinguishable from sky)

Mount Erebus disaster

spatial disorientation

Richard Rockefeller#Death

the leans (secondary to electrical fire and multiple equipment failures)

Swissair Flight 111

head-up illusion

Tatarstan Airlines Flight 363

black-hole approach illusion

VASP Flight 168

head-up illusion (secondary to instrument failure)

West Air Sweden Flight 294

Pilot error

Brownout

Spatial disorientation

Bárány chair

Kopp-Etchells effect

Controlled flight into terrain

FAA Pilot Safety Brochures – Spatial Disorientation (pdf)

FAA Pilot Safety Brochures – Spatial Disorientation – Visual Illusions (pdf)

Pilot’s Handbook of Aeronautical Knowledge, Chapter 17: Aeromedical factors