Aerial Shell Burst Delay Times

K.L. and B.J Kosanke

If you have ever wondered how long the shell burst process takes after the time fuse burns through to the interior of the shell, this article may be of interest to you. Although rapid, the process is not instantaneous. A flame front must advance through the burst charge and an amount of combustion gas must be produced that is sufficient to pressurize the shell casing beyond its burst strength. Some time ago, as part of a study of the possible cause of muzzle breaking aerial shells, we needed to determine approximately how long this process takes.[1] That burst delay time data is summarized below.


Ref: Selected Pyrotechnic Publication of K.L. and B.J Kosanke, Part 6, (2001-2002), pp 93-94
(K6_93)


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