Main battery formulas
Shell Grouping (σ)1.9
Shell grouping (sigma); shown in-game as Shell Grouping.
Max Horiz Disp236.4 m
Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model: $\sigma_H = \left(\dfrac{R}{30}\cdot\dfrac{\text{idealRadius}-\text{minRadius}}{\text{idealDistance}} + \text{minRadius}\right)\cdot 30$ $= \left(\dfrac{17385}{30}\cdot\dfrac{12-2.2}{1000} + 2.2\right)\cdot 30 = 236.4\,\text{m}$
Max Vert Disp141.8 m
Vertical dispersion ellipse height at max range: $\sigma_V = \sigma_H \cdot \text{radiusOnMax}$ $= 236.4 \cdot 0.6 = 141.8\,\text{m}$
Med Horiz Disp76.9 m
50%-hit horizontal radius: $\sigma_{H,50} = \sigma_H \cdot \text{GetHalfHitsRatio}(\sigma)$ $= 236.4 \cdot 0.325\;(\sigma = 1.9) = 76.9\,\text{m}$
Med Vert Disp46.2 m
50%-hit vertical radius: $\sigma_{V,50} = \sigma_V \cdot \text{GetHalfHitsRatio}(\sigma)$ $= 141.8 \cdot 0.326\;(\sigma = 1.9) = 46.2\,\text{m}$
AP Pen Close729.4 mm
Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: $P = 10^{-7}\cdot K \cdot m^{0.69} \cdot d^{-1.07} \cdot v_0^{1.38}$ $= 10^{-7}\cdot 2450 \cdot 800^{0.69} \cdot 0.38^{-1.07} \cdot 820^{1.38} = 729.4\,\text{mm}$. Matches the in-game spec card.
AP Pen Far387.9 mm
Same formula at the ship's max firing range (21.7 km), where the shell has slowed to 518.9 m/s: $P = 10^{-7}\cdot 2450 \cdot 800^{0.69} \cdot 0.38^{-1.07} \cdot 518.9^{1.38} = 387.9\,\text{mm}$.
HE penetration95 mm
95 mm ≈ 380 mm caliber / 4 (improved HE penetration: German BBs, Yamato-class, and a handful of others).
Improved HE PenYes
This ship's HE shells use a 1/4 (~0.25) caliber-to-pen ratio instead of the standard 1/6 (~0.167) - 0.249 in this case. Lets HE pen ~95mm armor instead of ~63mm. Hits every German cruiser (150mm CL, 203mm CA) and BB (350mm+), British heavy cruisers / Lion / Nelson, a handful of other premiums.
AP overmatch26 mm
floor(380 mm caliber / 14.3) = 26 mm (AP auto-penetrates plating this thick or less).
AP AOE Radius120
AP shell over-penetration splash radius; scales with shell mass. Wickes 102mm = 3, standard 152mm CL ~ 20, Iowa 406mm ~ 270, Yamato 460mm = 400, Incomparable 650mm = 550 (max). Larger value = bigger splash damage area when AP over-pens.
Broadside guns used for alpha8
All 8 barrels bear on the broadside.
Turret turn time36 s
180 degrees / 5 deg/s traverse speed = 36 s.
HE full-salvo alpha35,200
4,400 HE damage x 8 broadside guns = 35,200.
AP full-salvo alpha92,800
11,600 AP damage x 8 broadside guns = 92,800.
Base HE DPM88,000
35,200 HE full-salvo alpha x 60 / 24 s base reload = 88,000.
Base AP DPM232,000
92,800 AP full-salvo alpha x 60 / 24 s base reload = 232,000.
Installed HE DPM97,778
35,200 HE full-salvo alpha x 60 / 21.6 s installed reload (Main Battery Mod. 3 = -10%) = 97,778.
Installed AP DPM257,778
92,800 AP full-salvo alpha x 60 / 21.6 s installed reload (Main Battery Mod. 3 = -10%) = 257,778.
Base shells/min20
8 broadside guns x 60 / 24 s base reload = 20.
Installed shells/min22.2
8 broadside guns x 60 / 21.6 s installed Artillery reload = 22.2.
Base fires/min6.8
8 HE shells x 60 / 24 s reload x 34% fire chance = 6.8.
Installed fires/min7.56
8 HE shells x 60 / 21.6 s installed reload x 34% fire chance = 7.56.
Torpedoes
Torpedo detectability1.3 km
Estimated torpedo reaction time7.8 s
detectability / (speed kt x 2.6 community game-speed factor).
Torpedo speed64 kt
Travel time to max range36.1 s
range / (speed kt x 2.6 community game-speed factor).
Tube count8
2 launchers x 4 tubes.
Per-side salvo4 torpedoes
tube count / 2 (symmetric port/starboard launcher layout; common on cruisers and battleships with deck torpedoes).
Full-salvo damage101,600
All tubes hitting one target: tubes x per-torpedo simulated damage = 8 x 12,700 = 101,600.
Per-side salvo damage50,800
One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 4 x 12,700 = 50,800.
Secondary battery firepower
Secondary DPM (per side)253,540
Sum across all secondary families of (per-side barrels × 60 / reload_s × alpha), where per-side barrels = mounts × barrels-per-mount / 2 (the guns that bear on one broadside target). Per-family: 8×2 105 mm (8/side) × 60/3.35 × 1200 = 171,940 + 4×2 150 mm (4/side) × 60/7.5 × 1700 = 54,400 + 2×2 150 mm (2/side) × 60/7.5 × 1700 = 27,200. Assumes every shell hits (real hit rate is lower; the Brawl matchup tool on the Compare page folds in dispersion + target armor).
Max HE alpha1700
Maximum HE damage per shell across secondary HE families. Best on this ship: 1700 from the 150 mm family.
Max HE fire chance8%
Maximum per-shell fire chance across secondary HE families (before target fire resistance is applied). Best on this ship: 8% from the 150 mm family.
Max HE pen38 mm
Maximum HE armor penetration across secondary HE families (caliber × 1/6 for most nations; 1/4 for German/UK BBs). Shells whose pen falls under a plate's armor thickness shatter for 0 hull damage though fire chance still applies. Best on this ship: 38 mm from the 150 mm family.
Damage Control Party
Repair Party
Catapult Fighter
Observation Seaplane
Secondary Battery Booster