Human Engineering in the Design, Operation, Stowage, and Transportation of Ammunition, Pyrotechnics and Related Material. Phase II. Visibility Data as it Applies to Pyrotechnics.
DUNLAP AND ASSOCIATES INC STAMFORD CONN
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This report deals with two of the primary uses of military pyrotechnics the illumination of a selected area and visual signalling when other methods of communication are impractical or impossible. Although the functional specifications for these two types of pyrotechnic items differ considerably according to their use the basic requirements for both of them are visual in nature. The purpose of this manual is to integrate and evaluate the available information regarding human visual performance which is important in the design and development of military pyrotechnics. Under the topic of illuminating pyrotechnics, the effects of color, duration and brightness of the light and the contrast and size of target objects are considered. Concerning signals, visibility and recognition as a function of flare or smoke characteristics and ambient conditions are discussed.