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Spatial disorientation in U.S. Army rotary-wing operations

M G Braithwaite1, S J Durnford, J S Crowley

  • 1U.S. Army Aeromedical Research Laboratory, Fort Rucker, AL, USA.

Aviation, Space, and Environmental Medicine
|November 18, 1998
PubMed
Summary
This summary is machine-generated.

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Spatial disorientation (SD) is a significant hazard in U.S. Army rotary-wing operations, affecting 30% of accidents and 78% of aircrews. Improving crew coordination and technology can mitigate this risk.

Area of Science:

  • Aviation Safety
  • Human Factors in Aviation
  • Aerospace Medicine

Background:

  • Spatial disorientation (SD) poses a significant risk in U.S. Army rotary-wing operations.
  • Previous research has not fully quantified the extent and contributing factors of SD in this context.

Purpose of the Study:

  • To assess the prevalence and impact of spatial disorientation in U.S. Army rotary-wing operations.
  • To identify key factors contributing to SD and recommend control measures.

Main Methods:

  • Conducted two surveys: one analyzing accident records (Class A to C) and another collecting aircrew experiences.
  • Compared findings from accident data and aircrew self-reports regarding SD incidents.

Main Results:

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  • SD was a significant factor in 30% of accidents and 78% of aircrews reported experiencing disorientation.
  • Combat operations showed a marked increase in SD incidents.
  • Accidents were more likely to involve unrecognized SD, both pilots disoriented, sudden loss of visual cues, and occur at night compared to reported incidents.

    • Conclusions:

    • Spatial disorientation is a prevalent and serious issue in rotary-wing aviation, particularly during combat and at night.
    • While fatigue was not linked to SD, improvements in crew coordination, alerting devices, flight displays, and autopilot functions are recommended.
    • Further research and technological advancements are needed to enhance flight safety and reduce SD-related incidents.