Shellcalc© version 5.23

A new version of Shellcalc© is available (5.23) The following changes have been made Taken out the backgrounds on the scaled plots to make copy/paste easier into Powerpoint (It comes in transparent now if you just select the Excel graph) Updated the copy/paste instructions Added a scaled plan plot Added a screengrab of superimposing Shellcalc© …
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ShellCalc© V4.12

** NOTE – Version 5 is now available – click here A new version of the Shellcalc© program is now available.  The original paper describing the program is available here. ** PLEASE NOTE **  We have occasional reports that downloading the file using IE 8 results in a file with a “.zip” extension rather than “.xlsm”.  …
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A Prediction of Aerial Shell and Comet Trajectories Using SHELLCALC©

John Harradine and Tom Smith Abstract: This paper describes a model for predicting the path of aerial shells and Roman candle comets. This model, incorporated in a Microsoft® Excel-based freeware program, SHELLCALC©, predicts the trajectoryof these fireworks using point mass equations for range and height. These equations are modifi ed to take into consideration mortar/candle …
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