Journal of Pyrotechnics Archive

• Ability to set launch height below ground level (useful for firing in valleys)
• Ability to set shell burst diameter to override ShellCalc© defaults
• ** NEW in v5.16 ** Ability to set “Standard” Shell Burst Height
• Shells now explicitly include Bombettes (for single shot devices)
• Optional calculation and display of “normal” debris paths and distances – eg shell case fragments
• Optional calculation and display of “long burning” debris paths and distances – eg Kamuro stars
• Rationalised data input screens
• Large scale data plots – for printing or screen grab/insertion into reports etc
• Help TAB
• TAB including windspeed conversion table

We have also changed the program somewhat

• We have removed the Imperial/Metric option (temporarily) as most users do not use it
• Removal of macros – to print use normal Excel functions
• Consequent removal of buttons – change tabs using normal Excel features

The changes and models behind them will be documented in a paper shortly.

The next major version of ShellCalc© (version 6) is planned to contain the following features.  We’d be happy to hear your views on these.  It is also likely that the next version will be a charged for download – we will always keep the previous version free for download.

• Incorporation of Standardised parameters from European Standard of Cat 4 fireworks.  Eg the ability to enter Standard Shell Burst Height and allow this to override ShellCalc© default calculations
• User entered data for Mortar Parameters (to calculate effect on burst height etc)
• Calculations for Aqua Shells
• Calculations for Mines
• Further development of “normal” and “long burning” fallout models
• Further development of data entry and output screens

Changelog for V5 (please note downloading the file will download the latest version)

v5.1.4 – original version
v5.1.5 – minor bug fixes
v5.1.6 – ability to set “Standard” Shell Burst Height
v5.17 – fixed scale graphs for export purposes
v 5.18 – Corrected bug for large size shell burst height 
v5.23 – Updated fallout infromation etc  (see also http://www.jpyro.com/wp/?p=1585)

Very occasionally users have reported that the xlsx file is downloaded with a zip extension.  If this happens just rename the file extension to xlsx and all should be fine!  If you still experience problems opening the file ensure that you have a recent (post 2007) version of Excel installed – or download the Microsoft compatibility pack here.

Download Shellcalc 5.23