The G Transition Effect Revisited - A Broader Flight Safety Threat than Push-Pull'.

Abstract

The term Push-Pull Effect' (PPE), popularized in the last few years, has been used to describe observed reductions in G-tolerance during acceleration that was preceded by exposures to hypogravity (i.e. <+1Gz). The phenomenon can be easily interpreted as occurring only in classical bunt-then-pull' maneuvers. However, our review of previous research and operational evidence suggests a much broader spectrum of at-risk situations and adverse physiological and psychophysical effects. This complex phenomenon is not new, it was observed as early as 1953. It is suggested that the term G-transition effect' (GTE) more appropriately describes this phenomenon.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1999
Accession Number
ADA370500

Entities

People

  • B. Cheung
  • W. A. Bateman

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accident Investigations
  • Accidents
  • Aircrafts
  • Aviation Accidents
  • Body Regions
  • Brain
  • Cardiovascular Physiological Phenomena
  • Cardiovascular System
  • Centrifuges
  • Ear
  • Maneuvers
  • Medical Personnel
  • Motion Sickness
  • National Security
  • Nervous System
  • Security

Readers

  • Aviation Safety Risk Assessment.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Theoretical Analysis.