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A new source for vestibular illusions in high agility aircraft
D J Pancratz1, J B Bomar, J H Raddin
1Biodynamic Research Corporation, San Antonio, TX 78230.
Aviation, Space, and Environmental Medicine
|December 1, 1994
Summary
Future aircraft's enhanced maneuverability may cause G-excess and cross-coupling illusions in pilots. These disorientation risks can occur independently of pilot head movements, posing new dangers in high-agility flight.
Area of Science:
- Aerospace Engineering
- Human Factors Psychology
- Aviation Physiology
Background:
- Future aircraft will feature enhanced maneuverability, exposing pilots to extreme translational and angular accelerations.
- High-intensity combat maneuvering demands increase the risk of motion-induced illusions, exacerbating pilot disorientation.
Purpose of the Study:
- To investigate novel causes of G-excess and cross-coupling illusions in pilots.
- To analyze the potential for these illusions in supermaneuverable aircraft, independent of pilot head motion.
Main Methods:
- Theoretical analysis of disorientation causes in advanced flight regimes.
- Comparison of typical pilot head movements with projected angular motion capabilities of future aircraft.
Main Results:
- Identified aircraft rotation relative to the flight path as a potential new stimulus for G-excess and cross-coupling illusions.
- Concluded that high-agility aircraft may induce these illusions irrespective of pilot head movements within the cockpit.
Conclusions:
- Pilots in future high-agility aircraft face novel risks of disorientation due to G-excess and cross-coupling illusions.
- These illusions can be triggered by the aircraft's motion itself, not solely by pilot head movements, necessitating new safety considerations.