Chapter 14. Anthropometry and Biomechanics - FAA

HFDS 2003 (amended Oct 2009)Chapter 14 Anthropometry and biomechanics• 14.1.1.2 Data to be used. Designers and human factorsspecialists shall use the anthropometric and biomechanics dataprovided in this document and the associated appendix. Ifadditional data are needed, they shall use the more complete datagiven in DOD-HDBK-743A. If other reference or new datacollections are considered, the contractor shall obtain theapproval of the acquisition program office. [Source: NASA-STD-3000A, 1989; Department of Defense (DOD-HDBK-743A), 1991]Discussion. If this document does not present dataneeded for the problem at hand, the designer will have toselect appropriate sample information from DOD-HDBK-743A. In that handbook, the 1988 military male andfemale survey distributions can be used to represent theFAA user population when needed, as it represents themost comprehensive samples available. Note that civilianworking populations could be expected to have a largerrange of sizes and ages than the military. Samples withcomprehensive measures are not available.• 14.1.1.3 Using population extremes. Designers and humanfactors specialists shall draw upon the extremes of the largermale population distribution and the extremes of the smallerfemale population distributions to represent the upper and lowerrange values, respectively, to apply to anthropometric andbiomechanics design problems. [Source: NASA-STD-3000A, 1989]Discussion. The use of separate male and femalepopulation data is a conservative approach that results inmore inclusive design dimensions than the samepercentiles would from a composite population.14-3