Fin stabilized projectiles point mass model

Abstract

To calculate flight of unguided projectiles several types of the flight models are used. The application mostly depends on demand of the model accuracy, complexity and computational cost. As a good compromise of these three features for flight calculation of spin stabilized projectiles Modified Point Mass Trajectory Model was created. The MPMTM is commonly used for firing tables creation. In the paper the author shown conception of flight model designed for fin (aerodynamic) stabilized projectiles. At In the first part of the paper the motivation of the model designing was explained. Additionally analysis of the phenomena that should be used in the model was made. In the next part of the paper main equations of the model were described. Some of them were empirical. In the third part of the paper the accuracy of the designed model and two other model types was compared. Calculations results were compared with experimental data and the conclusion were drawn.