K. L. and B. J. Kosanke * and M. Williams
ABSTRACT: Based on the experience of a small fireworks display company with several low-breaking aerial shells, it was speculated that the cause might be related to having modified the aerial shell ignition system. To evaluate this possibility the effect of various levels of ignition stimuli on the performance of aerial shell Black Powder lift charges was briefly investigated. The purpose of the study was to scope the nature and magnitude of any resulting effects. Armed with that information it would then be possible to better design a more extensive study if needed. Three levels of ignition stimuli were used: hot-wire igniters, electric matches, and fireworks quick match. Using identical test shells, upon firing, no statistically significant differences were found in their times of flight and mortar pressure impulses. Thus, either the low breaks were the result of something unrelated to ignition stimulus, or the statistically small number of trials was not sufficient to identify the effect.
Ref: Selected Pyrotechnic Publication of K.L. and B.J Kosanke, Part 5, (1998-2000), pp 104-108
(K5_104)
© Journal of Pyrotechnics and CarnDu Ltd
