Dayu Ding, Morimasa Higaki, Yuzo Ooki, and Tadao Yoshida* Abstract: Firing firework star experiments have been carried out using 20 mm and 25 mm inner diameter steel mortars equipped with two or four pressure transducers, and the pressure profi les were recorded. The relative pressure profiles of the four positions in the mortar changed with …
Continue reading Pressure in a Mortar and Estimation of Muzzle Velocity of Expelled Stars
Category:JPyro – Articles
The main category – things that are published in the Journal
A Thrust and Impulse Study of Guanidinium Azo-Tetrazolate as a Fuel Additive for Hybrid Rocket Motor
Ann Wright, Warfield Teague M. Keith Hudson, Andrew Wright, Patrick Foley Abstract: Guanidinium azo-tetrazolate (GAT) is an organic salt with a high percentage of nitrogen. GAT was mixed with the standard hybrid rocket fuel, hydroxyl-terminated polybutadiene (HTPB), in concentrations of 15% and 25% by mass. The fuel grains with the GAT additive were fired for …
Continue reading A Thrust and Impulse Study of Guanidinium Azo-Tetrazolate as a Fuel Additive for Hybrid Rocket Motor
Review of: Black Powder Manufacture Methods and Technique – Ian von Maltitz’s
Black Powder Manufacture Methods and Technique Ian von Maltitz Review by John Bergman In this book, Mr. von Maltitz has compiled a wealth of historical data about black powder, descriptions of commercial and amateur production methods, equipment, ingredients, formulae, and even comparative performance data. Probably nowhere else is so much basic information about this most …
Continue reading Review of: Black Powder Manufacture Methods and Technique – Ian von Maltitz’s
Review of: Introductory Practical Pyrotechnics – Tom Perigrin
Introductory Practical Pyrotechnics Tom Perigrin Review by Tom Dimock As a pyrotechnist who has a rather public persona on the Internet, I am often called upon to recommend a book on the craft of fireworks to beginning pyrotechnicians. This was always a problem because the available literature was either too advanced or too dated to …
Continue reading Review of: Introductory Practical Pyrotechnics – Tom Perigrin
TEST POST
This is a $0.01 test post
Thermodynamic and Spectroscopic Analysis of a Simple Lilac Flame Composition
B. T. Sturman and K. L. Kosanke Abstract: A simple lilac flame composition consisting of 80% potassium nitrate and 20% shellac was investigated by emission spectroscopy and thermodynamic modeling. The flame from the burning composition had a reddish-pink core with a brighter pale lilac outer envelope. The core of the flame is presumably close to …
Continue reading Thermodynamic and Spectroscopic Analysis of a Simple Lilac Flame Composition
Review of: Lecture Notes for Pyrotechnic Chemistry – K. L. & B. J. Kosanke
Lecture Notes for Pyrotechnic Chemistry K.L. and B.J. Kosanke Review by Paul Smith The recent output of books providing accurate scientific discourse on pyrotechnics has been almost nonexistent. While there are still copies of many good texts on this subject, new editions to this extant literature have been rare. The publication of the two-part syllabus of …
Continue reading Review of: Lecture Notes for Pyrotechnic Chemistry – K. L. & B. J. Kosanke
Primer Gunshot Residue Detection from the Firing of a Black Powder Revolver
L. T. Briscoe, K. L. Kosanke, and R. C. Dujay Abstract: A study was conducted to determine the potential for being able to identify primer gunshot residue (PGSR) within the substantial quantities of particulate residues produced during the firing of a revolver using Black Powder propellant and a percussion cap primer. Samples of gunshot residue …
Continue reading Primer Gunshot Residue Detection from the Firing of a Black Powder Revolver
An Evaluation of Lightning Thermo Tube™ as a Pyrotechnic Ignition System
K. L. Kosanke and B. J. Kosanke Abstract: Lightning Thermo Tube (LTT) is a recently introduced type of shock tube with characteristics that make it highly suitable for use with common pyrotechnics. LTT is reliably initiated by reasonably energetic electric matches and reliably ignites most pyrotechnic compositions. LTT is physically strong, easily spliced and branched, …
Continue reading An Evaluation of Lightning Thermo Tube™ as a Pyrotechnic Ignition System
The Search For The Glitter Phenomenon
John Wraige Abstract: This report presents the results of experiments carried out spasmodically over 14 years to investigate the glitter phenomenon. Various glitter compositions are disclosed. Some of these show that the use of sulphur in either elemental or combined form is unnecessary. Others show that similar considerations apply to antimony or any other heavy …
Continue reading The Search For The Glitter Phenomenon