Kenneth L. and Bonnie J. Kosanke ABSTRACT: A concussion mortar can be defined as a device used to produce a noise and jarring shock for dramatic effect at events such as stage productions. It consists of a thick-walled tube, closed at one end to form a combustion chamber (barrel). A type of pyrotechnic flash powder …
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Author:Avril
Introductory Chemistry for Pyrotechnists, Part 1: Atoms, Molecules, and Their Interactions
Wesley D. Smith ABSTRACT:This is the first in a series of tutorials that introduce the concepts of chemistry to practicing pyrotechnists. It begins with the fundamental ideas of atoms and molecules. The reactions of these entities, together with their symbols, their nomenclature, their stoichiometry, and their energetics, are then described with pyrotechnic examples. Keywords: chemistry, …
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Observations on the Behaviour of Seamed Steel Mortar Tubes
Stewart G. Myatt ABSTRACT: This paper reports results taken from a wider investigation of the effect of various parameters on the fragmentation behaviour of steel firework mortar tubes. During simulated misfire experimental information was obtained relating to the role of the weld in determining rupture behaviour in seamed steel mortar tubes. The results have helped …
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Observations on the Heights Attained by Spherical Fireworks Shells
Roland K. Wharton ABSTRACT: This paper examines previously published information on the heights attained by spherical firework shells and proposes some empirical relationships that enable rough estimates to be made of the height attained from knowledge of either the mass or the diameter of the shell. Keywords: shell height, shell mass, lift charge mass, shell …
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Erratum for JPyro, 20, 2004, p71
A Simplified Method for Determining the Strength of a Tube Subjected to Internal Pressure Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free
Erratum for JPyro, 17, 2003, p22
A Study of the Combustion Behaviour of Pyrotechnic Whistle Devices (Acoustic and Chemical Factors) Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free
Erratum for JPyro, 14, 2001, p66
Speculation on the Explosive Decomposition of “Yellow Powder” Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free
Erratum for JPyro, 11, 2000, p1, p6
A Labscale Hybrid Rocket Motor for Instrumentation Studies Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free
Erratum for JPyro, 10, 1999, p6
Burst Process of Spherical Aerial Shells Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free
Erratum for JPyro, 9, 1999, p57, p60
The Rare Earths As Possible Flame Color Agents Please download the erratum to the original article below Note: Downloads of errata and supplementary materials are free