Handbook of Airsickness for the Canadian Forces Air Navigation School (CFANS)

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Authors
  1. Cheung, B.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Airsickness is a common occurrence among aircrew trainees, particularly during the initial training phase. It is well known that motion sichness afflicts the passenger far more than the driver of the vehicle. Navigators present a uniquely different problem from the pilots and other on-board aircrew. The navigator spends a great deal of time with his head down in the aircraft cabin and at low levels he is subjected to turbulence, increased Gz during prolonged bank-turns without the benefit of anticipating aircraft motion. For example, the navigator who is reading maps while the aircraft is manoeuvring experiences angular motion sensed by the semicircular canals, but because the visual field of view is confined to objects within their immediate work station. The lack of visual evidence of rotation and any vestibular-induced eye movements has to be suppressed if visual degradation for the task at hand is to be avoided. Over the years, the Canadian Forces Air Navigation School has encountered cases of chronic airsickness in student-navigators. In an extreme case, the phenomenon resulted in a course removal and eventual declaration of unfit aircrew. The removal of a student from the course after delays is ineffective and also disrupts the training schedule and performance of other aircrew. Therefore, airsickness has financial implications by contributing to the failure rate in a costly training program. TRUNCATED
Keywords
Airsickness;Disorientation;Habituation
Report Number
DCIEM-TR-2000-014 — Technical Report
Date of publication
01 Jan 2000
Number of Pages
37
DSTKIM No
CA001302
CANDIS No
513099
Format(s):
Hardcopy;Document Image stored on Optical Disk

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