G tolerance varies widely among individuals. To assure that aircrew with abnormally low G tolerance are not assigned to aircraft that operate in the high-G environment, a G-tolerance standard and the means to implement that standard are necessary. Since 1977 the USAF SAM has used, in human centrifuge operations, an informal G-tolerance standard for selecting experimental subjects, evaluating medically disqualified aircrew, and ensuring efficacy of high-G training for aircrew. That standard consists of the subject's being able to sustain for 15 s a rapidly applied +7-G sub z load, without totally losing peripheral vision or losing consciousness, while wearing a functioning anti-G suit, performing an anti-G straining maneuver, and sitting in a conventionally configured fighter aircraft seat. Inability to tolerate a 7-G, 15-s, rapid-onset G profile in a centrifuge is also the basis of internationally recognized (NATO, ASCC) definitions of low G tolerance. The rationale for choosing the 7-G, 15-s standard is discussed. Experience with use of this standard and the equivalent standard of 8 G for 15 s when the F-16-configured seat is used reveals that fewer than 1% of actively flying fighter aircrew are unable to meet the standard.


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    Titel :

    G-Tolerance Standards for Aircrew Training and Selection


    Beteiligte:

    Erscheinungsdatum :

    1986


    Format / Umfang :

    9 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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