Accession Number : AD0620298

Title :   HIGH ACCELERATIONS IN INTERMEDIATE TRAINING: INCIDENCE OF SYMPTOMS AND AN ESTIMATE OF TOLERANCE TO 'G'.

Corporate Author : NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA

Report Date : 29 DEC 1945

Pagination or Media Count : 7

Abstract : The incidence of obvious symptoms due to high accelerations in instructors and students was estimated by means of a questionnaire. Roughly one-half had experienced greyout or black-out, and one-eighth blacked out frequently. In a primary squadron there was less black-out experienced by students than at a squadron training in dive bombing and gunnery, where one-quarter blacked out frequently. Fifteen of 16 primary instructors admitted blacking out, almost one half frequently. From what is known of the g's produced by the maneuvers responsible for black-out, the tolerance for g of all of these individuals was less than + 6 g, and most of them certainly less than + 5 g, applied for not more than 4 seconds. There was considerable ignorance shown as to the causes of black-out and methods of its prevention. About half the subjects did not known how their tolerance to g could be altered. (Author)

Descriptors :   (*ACCELERATION TOLERANCE, BLACKOUT(PHYSIOLOGY)), (*BLACKOUT(PHYSIOLOGY), AVIATION PERSONNEL), STRESS(PHYSIOLOGY), GRAVITY, INSTRUCTORS, STUDENTS, TRAINING, DIVE BOMBING, GUNNERY TRAINERS, AVIATION MEDICINE

Distribution Statement : APPROVED FOR PUBLIC RELEASE