A critical evaluation of three models of external ballistic

Ouro Preto, MG: 18th International Congress of Mechanical Engineering. November 6-11, 2005. – 7 р.In the present work, performance analysis of three different exterior ballistics models for predicting projectile trajectories is examined. The models selected are: point-mass, modified point-mass and 6-DOF. The objective of the analysis is to verify which of these models provides the most accurate predictions for both range and maximum height of a trajectory, given its initial conditions, projectile characteristics and associated atmospheric effects. The obtained results are compared with experimental data, which leads to the conclusion that 6-DOF is the best among the three approaches, although it requires a larger time of computational processing