Modelling & Trials to Characterize a Shaped Charge Jet Slug Trajectory & Range

Abstract

This paper describes a study of possible methods of predicting shaped charge range. An initial modelling study suggested the jet slug would have the longest range. Experimental trials were then performed, the aim being to produce data that would provide confident estimates of the likely maximum slug range. The trials were split into two parts. The first ‘short range trial’ characterized the slug. The ‘long range trial’ used tracking radar to measure the trajectory of the slug and hence determine its external ballistic properties. This information was used to calculate a drag law, which in turn was used to predict trajectories of the slug for different elevations and wind conditions. These trials utilized a number of innovative techniques that had not previously been used on small caliber shaped charges. The investigation has demonstrated the value of an integrated approach between simulation and experimentation.