The aiming plane is on Fuso's center, and is at the stated 15.00 km distance. The relation between horizontal and vertical being a constant value on the given dispersion stance. LWM's stated parameters of her test: Fuso at 15 km, no camouflage, whether the ship being tested was using specific dispersion modules and the shots coming from right to left. It is also possible to do so with the distance between the aiming plane and the rightmost point, though I am not entirely sure how the game models the shot when the shell's target point is underwater.Īs usual practice, here are the assumptions of this analysis: Measure the distance between the aiming plane (Fuso's center, 15 km range) and the leftmost point in her test.Ĭheck the angle that the shell hits the water using a ballistics calculator.Įstimate the approximate aiming vertical dispersion by taking the tangent of that angle on impact with the distance of that point. Pick the dispersion test from LWM's reviews. The idea of the analysis is quite simple: My goal is to find the vertical dispersion on the aiming plane, not on the water plane, and I'll refer to that as "aiming vertical dispersion" to keep it clear. This analysis tries to find the latter.Īs a clarification, there are two different types of dispersion that people refer to when discussing vertical dispersion, as illustrated by this famous image by Sub_Octavian as "built on plane" and "on water ".
If anyone that can point how to refine this analysis, feel welcome to do so.įor those that don't know, Sub_Octavian explained long ago that there are three parameters that affect the shell's dispersion on the aiming plane: horizontal dispersion, sigma and a horizontal-to-vertical ratio. It is still an approximation due to limitations from the tools and plain RNG. This is an analysis to tackle the vertical dispersion from the dispersion tests done by LittleWhiteMouse.