Human Physiological Limitations to G in High-Peformance Aircraft

  • R. R. Burton
Conference paper


The accelerative force (principally +G z)1 of the environment of the aerial combat maneuver (ACM) of high-performance aircraft has two dimensions that determine human tolerances: (a) G level and (b) G duration. Typically, G-level tolerances are measured using light-loss criteria, such as gray out (loss of peripheral vision), blackout (loss of central vision), or G-induced loss of consciousness (G-LOC), whereas G-duration physiological limitation is a function of pilot fatigue. A review of G tolerance determinations is available (Burton et al. 1974).


Maximum Voluntary Contraction Blood Lactate Blood Lactate Level Anaerobic Capacity Anaerobic Power 
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© Springer-Verlag New York Inc. 1989

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  • R. R. Burton

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