Hit Points30,000
Displacement14,700 t
Armor range6–100 mm
Plate armor thicknesses6, 13, 20, 22, 25, 26, 30, 40, 80, 100 mm
Armor material/layer entries45
Fire resistance ƒ
Does not reduce the damage a burning fire does per second: replay-measured burn ticks run at the full rate on every ship. By elimination it lowers how often hits set you on fire; ignition-rate replay data is consistent with that but too confounded by attacker mix to measure the reduction directly.
Fire duration30 s
Fire damage ƒ
Each fire ticks 0.3% of max HP per second for the full 30 s, so one unattended fire burns 9% of the pool (2,700 HP on this ship). 4 fire points can burn at once. Verified against measured burn ticks in replay data.
Flood duration40 s
Flood damage ƒ
A flood ticks 0.25% of max HP per second for the 40 s duration, so one unattended flood costs 10% of the pool (3,000 HP on this ship). Verified against measured flood ticks in replay data.
Torp Reduction ƒ
Reduces torpedo hit damage. Replay data shows no effect on floods: flood ticks run at the full rate and flood frequency does not decline with protection.
Magazine HP ƒ
Per-turret powder-magazine HP, a separate pool from the ship's. Penetrating hits wear it down and the turret is likelier to be knocked out as it falls, so a larger pool keeps the guns firing through punishment that silences a peer's.
Steering gear HP ƒ
Durability of the steering gears. As this pool drops, hits are likelier to jam the rudder; unlike most modules the steering can be knocked out and repaired but is never permanently destroyed.
Repairable: penetration50%
Repairable: citadel10%
Repairable: steering gear50%
ModuleArtillery: 203 mm/50 Mle 1931
Mounts / barrels3 mounts / 9 barrels
Reload time12 s
Firing range15.2 km
Turret traverse6 °/s
Turret armor140 mm
Turret traverse arcs ƒ
How far each mount can train, in degrees to either side of the mount's own facing, read from in-game data. A rear turret with ±150° leaves a 60° blind wedge over the bow; one-sided arcs are wing mounts that cover a single side. The data does not say which way each mount faces, so the arcs are listed per mount without bow/stern angles.
Guns to bear ƒ
How far off the bow (or stern) the ship must angle before every main turret can fire: the widest blind wedge among the rear-facing (or forward-facing) mounts, from each mount's trainable arc. Mount facing is inferred from turret stations and verified against known layouts, including Izumo's aft-facing forward turret.
AP pen max range146 mm
HE fire DPM vs T6 BB47112
Effective HE DPM vs T6 BB164112
Shell Grouping (σ)2
Max Horiz Disp ƒ
Horizontal dispersion ellipse width at max range, from the verified WoWS dispersion model:
Max Vert Disp ƒ
Vertical dispersion ellipse height at max range:
Med Horiz Disp ƒ
50%-hit horizontal radius:
Med Vert Disp ƒ
50%-hit vertical radius:
Turret turn time ƒ
180 degrees / 6 deg/s traverse speed = 30 s.
Shells/min ƒ
9 broadside guns x 60 / 12 s base reload = 45.
HE shells
HE Damage2,600
HE Velocity850 m/s
Fire Chance14%
HE penetration ƒ
34 mm ≈ 203 mm caliber / 6 (standard HE penetration ratio).
HE full-salvo alpha ƒ
2,600 HE damage x 9 broadside guns = 23,400.
HE DPM ƒ
23,400 HE full-salvo alpha x 60 / 12 s base reload = 117,000.
Fires/min ƒ
45 shells/min x 14% fire chance = 6.3.
AP shells
AP Damage4,800
AP Velocity820 m/s
Min Ricochet45 deg
Guaranteed Ricochet60 deg
Fuse Timer0.033 s
Fuse Threshold34 mm
AP overmatch ƒ
floor(203 mm caliber / 14.3) = 14 mm (AP auto-penetrates plating this thick or less).
AP Pen Close ƒ
Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: . Matches the in-game spec card.
AP Pen Far ƒ
Same formula at the ship's max firing range (15.2 km), where the shell has slowed to 415.4 m/s: .
AP full-salvo alpha ƒ
4,800 AP damage x 9 broadside guns = 43,200.
AP DPM ƒ
43,200 AP full-salvo alpha x 60 / 12 s base reload = 216,000.
AP AOE Radius ƒ
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.
ModuleTorpedoes: 550 mm lance-torpilles
Launchers / tubes2 launchers × 3 tubes = 6 tubes
Reload time90 s
Projectile speed60 kt
Range9.99 km
Maximum simulated damage ƒ
Estimate of WG's in-game value; matches the in-game port screen within ±5%. Saturation: most targets only intersect one hull section, so the sim transfers ~1/3 of the warhead alpha (2/3 when the warhead blast >= 5000 and the burst reaches a second section). For this ship: .
Maximum damage (ammunition) ƒ
The ammunition card's 'Maximum Damage' stat, exact: warhead alpha / 3 plus the blast addend. This is the per-torpedo number most references quote; the 'Maximum simulated damage' row above is WG's separate geometry-sim stat from the launcher spec panel.
Torpedo detectability1.3 km
Reaction time ƒ
How long a target has to dodge after your torpedo is spotted at its detectability range (lower means less warning): . The 2.6855 m/s-per-knot game-speed factor is calibrated from in-game measurement; the community's traditional 2.6 reads about 3% slower. Base value; commander torpedo-concealment skills lower it further. Community torpedo-reaction calculator by u/LorenDovah and u/The_ColorOutofSpace.
Flooding chance ƒ
Read straight from the game's own data: this torpedo carries a flooding-chance value of 2.46 per hit, shown as . Torpedo flood values above 100% are normal: in battle the base chance is scaled down by the target's torpedo protection (the Torp Reduction stat on its Survivability card) and any flood-resistance modifiers, so a value above 100% keeps flooding likely even through partial protection. Not shown on the in-game port screen.
Torpedo launcher traverse25 °/s
Launch arcsstarboard 152°, 146°
Torp Turn ƒ
Time to rotate the launchers 180 deg: .
Torp Arming191 m
Per-side salvo damage ƒ
One side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 3 x 14,733 = 44,199.
AA mount points16
Maximum AA range ƒ
Longest-reaching family on the in-game AA card. Base AirDefense aura max range is 3.5 km; dual-purpose mount auras extend it.
40 mm/56 Bofors Mk34×1 40mm
37 mm/70 ACAD Mle 19364×2 37mm
20 mm/70 Mk48×1 20mm
100 mm/45 Mle 1931 (DP) ƒ
Dual-purpose: your secondaries doing double duty against aircraft. The same mounts appear on the Secondary Battery card - shared guns, not extra hardware.
Guns100 mm/45 Mle 1931 (DP)
Continuous DPS ƒ
Effective DPS in in-game units (raw aura damage × 3.5 × hit probability, summed per contributing aura) - matches the Close-range AA DPS headline's currency. Includes 44 from dual-purpose secondaries firing as AA in this range band.
Range5 km
Guns37 mm/70 ACAD Mle 1936 + 40 mm/56 Bofors Mk3
Continuous DPS ƒ
Effective DPS: 46 raw aura damage × 3.5 × 0.9 hit probability = 145 - the same in-game units as the Close-range AA DPS headline.
Range3.5 km
Total DPS in Aura ƒ
Far 44 + Medium 145 = 189
Guns20 mm/70 Mk4
Continuous DPS ƒ
Effective DPS: 20 raw aura damage × 3.5 × 0.85 hit probability = 60 - the same in-game units as the Close-range AA DPS headline.
Range2 km
Total DPS in Aura ƒ
Far 44 + Medium 145 + Near 60 = 249
Bursts ƒ
Each ~2 s wave fires 2 quick salvos of 1 clouds ahead of the attacking squadron - up to 2 clouds per wave × 170 damage each. Planes that fly into a cloud take its damage; clouds dissipate before the next wave lands. Defensive AA Fire, where fitted, multiplies the salvo repeats within each wave.
Cloud damage ƒ
Damage a plane takes for flying into one flak cloud, before any reductions.
Cloud spawn chance ƒ
Each cloud in the pattern rolls this chance to spawn, so waves average fewer clouds than the maximum. Often called flak 'hit chance', but spawned clouds always damage planes that fly into them - the roll is on spawning.
Wave rate ƒ
A flak wave spawns roughly every 2 s - timed frame-by-frame from gameplay footage and consistent across ships.
Fired by ƒ
Flak keeps firing while at least one secondary battery mount is operational - even losing every other AA mount does not stop it.
Flak zone ƒ
The activation band: flak fires while attacking planes are inside it. Clouds are placed ahead of the planes' path, so bursts can land short of 2.5 km or past 5 km - once planes get inside the band, new waves stop. AA range bonuses push the outer edge out; the 2.5 km inner edge does not move.
Mounts5
Firing range4.5 km
Shell Grouping (σ)1
100 mm/45 Mle 1931 (DP) ƒ
Dual-purpose: the same mounts also fire at aircraft, so they appear on the AA Defense card too - shared guns, not extra hardware.
Caliber100 mm
Reload time4 s
HE Damage1,400
Muzzle Velocity780 m/s
Fire Chance6%
Armor Pen17 mm
Secondary dispersion type ƒ
Max dispersion = range (km) × 57 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.
Max secondary dispersion @ 4.5 km ƒ
4.5 km × 57 + 30 = 286.5 m.
Maneuverability
Engine power100,000 hp
Maximum speed32 kt
Turning circle radius690 m
Rudder shift time14.2 s
Engine power-boost threshold7 kt
Engine spool-up time15.3 s
Reverse spool-up time7.7 s
Reverse speed ƒ
top speed / 4 + 4.9 = 32 / 4 + 4.9 = 12.9 kt. The community reverse-speed model from the WoWs ShipBuilder project, the same source as the acceleration model on this card. Base value; speed modifiers scale it. Not shown on the in-game card.
Crash stop ƒ
Seconds from top speed to a dead stop after ordering full reverse: reverse power winds in over the reverse spool-up while water drag does most of the braking. Same community-model simulation as the acceleration times, using the ship's own reverse-power ratio from in-game data. The full curve is on the acceleration chart.
Engine boost threshold (reverse) ƒ
Speed below which the engine's built-in power boost applies in reverse. Matches the in-game maneuverability card's reverse threshold (Vampire II reads 10.5 here and the card shows 11; the card rounds half up).
Acceleration 0-90% ƒ
Time to reach 90% of top speed (28.8 kt of 32 kt), from our in-house acceleration model.
Acceleration 0-99% ƒ
Time to reach 99% of top speed (31.7 kt of 32 kt). 99% rather than 100% because true top speed is asymptotic (thrust meets drag), so the last fraction of a knot is never quite gained.
Traverse-to-turn ratio ƒ
How many degrees the turret can swing for each degree the hull turns. Turn rate , so . Below 5 the turrets drag in a turning fight; 25+ keeps up with any rudder.
Detectability by sea12.95 km
Detectability by air7.77 km
Smoke firing penalty7.45 km
Detect when firing (sea) ƒ
Equal to the ship's main battery range (never below base detectability): firing makes you visible to everyone you can reach. Matches the in-game 'Detect Firing Sea' value on all 8 unmodified captures, and range-modified captures track the modified range.
Detect when firing (air) ƒ
Air detectability plus the gun-firing bloom (4.06 km, which tracks main-battery caliber x 0.020). Matches the in-game 'Detect Firing Air' value on every captured ship.
Detect when on fire (sea) ƒ
Base sea detectability + 2.0 km while burning; matches the in-game 'Detect Fire Sea' value on every captured ship.
Detect when on fire (air) ƒ
Base air detectability + 3.0 km while burning; matches the in-game 'Detect Fire Air' value on every captured ship.
Guaranteed Detect2 km
Damage Control Party∞ charges · 60 s reload · 5 s activeChoose one
Sonar2 charges · 180 s reload · 94 s active · 4.2 km ship detect ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 
Defensive AA Fire3 charges · 140 s reload · 25 s active · ×2 flak burst boost ƒ
Repeats the flak burst pattern ×2 within each wave - more clouds in the air over the wave, at the same spots.
Catapult Fighter3 charges · 80 s reload · 90 s active · 5 km patrol radius ƒ
Derived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 
Engine Boost2 charges · 120 s reload · 180 s active · +15% speed bonus
