This has been confirmed by experiments conducted by the players. it gives a value where 50% of the fired shells will land around the point of aim. The in-port value describes dispersion in terms of one probable error, i.e. The intensity with which the shells fall in different points of the area of dispersion, can be described by a Gaussian (normal) distribution. Shell impacts within the dispersion ellipse are not uniformly distributed over the surface, but lie more thickly towards the center of aim. a value that describes the lateral distribution of the shells relative to the player's ship. The dispersion value displayed in port is the horizontal length of the dispersion ellipse at the maximum fire range, i.e.

This ellipse has a certain length and width values, which are dependent on the characteristics of the gun. A double-click will fire all guns in one salvo with one dispersion ellipse, sequential fire will construct dispersion ellipse for each turret salvo separately. Every time a player orders his main caliber guns to fire, the game engine constructs a 2-D ellipse around the point of aim, and does so independently for each salvo fired. An ellipse constructed around the dispersion area is called the dispersion ellipse. Observing the position of the surface bursts around our point of aim, we find that they fall into a roughly elliptical area in relation to the line of fire. Dispersion values for main caliber guns are displayed in port

World of warships aim assist link