@article{ref1,
title="Determining aircrew helmet size design requirements using statistical analysis of anthropometric data",
journal="Aviation, space, and environmental medicine",
year="1991",
author="Sippo, A. C. and Belyavin, A. J.",
volume="62",
number="1",
pages="67-74",
abstract="Traditionally, the number of aircrew helmet size rolls has been determined using head length and breadth for specified percentile ranges of a target population. Helmet mounted display technology will require taking the third dimension (pupil-vertex height) into account. Using data from &quot;An Anthropometric Survey of 2000 Royal Air Force Aircrew, 1970/1971,&quot; the three head dimensions of length, breadth, and pupil-vertex height were plotted for each subject. A minimum number of helmet sizes was calculated to achieve a reasonable quality of fit. The 93.5% of subjects grouped around the population mean was the largest fraction which had a reasonable quality of fit while using nine sizes. Attempts to fit a larger percentage would require either a large increase in the number of sizes or a relaxing of fitting quality.<p /> <p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}