The continuous development of modern technology puts the ship's artillery in position as one of the most capable military-destructive systems. In the sense of ''most capable'' is considered a type of weapon that will achieve the best possible results with as few resources as possible, in other words the efficiency or effectiveness of artillery is sought. In this case, the resources take the form of a projectile, and the results are evident in the objects that were first hit and then destroyed. In order to fully understand the theory of the functionality of naval artillery, it is important to recognize the role of ballistics, a modern science that can be divided into internal, external and objective ballistics. After studying the ballistics in detail, what is left is only to figure out how the computer works, how it receives all this information about various impacts, and how it gives different calculating values that should ultimately give the correct trajectory of a projectile that will successfully hit its target. This is how the system works in automatic shooting, and it is considered as automatic because computer provides calculations and also use his own sensors to search targets and after to monitor it. On the other hand, there is also a sphere of manual firing where the gunner takes the lead. Lest it be misunderstood, and in automatic firing the man takes the lead, but in this mode he only has to press the firing button, while in manual firing, he manages with the cannon barrel and sets it up as he wants and demands based on his experience, conditions and training. At the threshold of these features, a model has been made that consistently represents the real system.