A Statistical Analysis of the Sizing System for the Advanced Technology Anti-G Suit (ATAGS)

Abstract : The current Anti-G suite sizing system appears adequate for the male target population. It covers approximately 98.5% of that population. Three sizes are found to be candidates for elimination from the system: Sizes 7, 3, and 8. Several opportunities exist for system improvement by reproportioning some sizes. Recommendations were made for reproportioning sizes for men. Waist Circumference (at Iliocristable)) and Crotch Height were identified as the key anthropometric dimensions for distinguishing suit sizes. The procurement tariff resulting from this analysis differs significantly from that projected based on design criteria. Female data were collected in conjunction with the men, but analyzed and reported separately. It was clear that large proportional differences in the waist versus the hip made the suits unacceptable for many women. It was apparent that this type of Anti-G suit required sizes specifically proportioned for the female form. Past studies indicate that source of the problem, and the female data analysis includes results and comparisons from other studies. Size recommendations for women were made based on that analysis.