THE DIFFERENCE BETWEEN THE CANNON JUMP PREDICTION OF HE-MP VS APFSDS PROJECTILES— COMPARATIVE STATISTICAL ANALYSIS

Abstract

The article is a continuation of a study that allows to predict the cannon jump based on the barrel curvature using a linear regression model. In the past, this capability was formulated mainly for APFSDS projectiles, while in the current work an attempt was made to match this methodology to full-caliber ammunition, using a significant fire tests database. During the study, there was a major difficulty in building a prediction model which has smaller error than the average cannon jump value based on full database information, and the authors hypothesized that the probable reason is a large residual error of jump value which presents in rounds with relatively large dispersion dimensions. For the test, the results were grouped according to the threshold value of the dispersal size, and a clear improvement trend was identified in the model errors as the threshold for dispersal size was tightened.