World of Warships: Legends ship guide

ARP Haguro

Beta
Japan · Tier VI · CA Cruiser · Premium
Improved-AP cruiserAn improved AP fuse citadels cruiser sides a normal CA round over-pens, but bounce angles are standard: spam HE, and switch to AP only for a flat broadside.
Playstyle
  • Switch to HE the moment a target angles: your bounce angles are the standard 45°/60°, so AP that fails the angle check does nothing no matter how much penetration it carries. Save AP for a flat broadside
  • Work the islands rather than a firing line
  • Avoid: Pushing in blind because the kit says brawler
Key characteristics
Long torps (10 km)2.1 sigma accuracy15.6 km gun rangeHeavy HE shellsSonarEasily spotted
Arpeggio collaboration variant

Collaboration ships are kept separate from base hulls unless an official collaboration source clearly ties the variant to that page.

On this page
Community Data

ARP Haguro Community Stats

Across 740+ Standard battles from 57 players, ARP Haguro averages a 58% win rate, 59,100 damage and 0.9 kills per battle, and survives 45% of them.

Community Data

ARP Haguro Community Stats

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Playstyle

Overview

ARP Haguro is a Tier VI Japanese IJN cruiser with the improved AP fuse: her AP shells arm at 60% of the standard armor threshold, so they citadel cruisers that would over-pen a normal CA round. Her bounce angles are the standard ones though, and a shell that fails the angle check wastes its penetration entirely, so the fuse is a reward for catching a target flat rather than a reason to load AP by default. Spam HE, and switch to AP the moment a broadside actually presents itself. Sonar (4.2 km on ships and 3 km on torpedoes, 94 s active, 180 s reload, long uptime) lights up DDs and torpedoes inside its bubble, which lets her contest the cap edge without taking the spotting cycle. Standout traits: sigma in T6 CAs (2.1, 3rd of 44) and main battery range in T6 CAs (15.6 km, 3rd of 44). The trade is surface detection in T6 CAs (13 km, 40th of 44).

Positioning

Work the islands rather than a firing line. Sonar (4.2 km on ships, 3 km on torpedoes) is the whole kit, and it only pays inside that radius, so hold the cover beside a contested cap and use it to catch destroyers and torpedoes coming around the corner: HE into the destroyer, AP into any cruiser that shows you a broadside while it sits in smoke. Firing from a friendly smoke reveals you at 7.5 km, so pick the salvo rather than holding the trigger. The helm answers fast (7.2 s) but the circle is wide (780 m): weave to spoil aim rather than committing to turns, because a committed turn gives up more water than the quick rudder saves you.

Potato Avoidance

Pushing in blind because the kit says brawler

4.2-km Sonar is what makes the close fight winnable, and it only helps once you are already committed; it does not tell you what is waiting two islands over. Push when a destroyer is lit or a teammate holds vision, not to find out who is there.

Signature Traits

Improved AP fuse (IJN cruiser)

AP arms at 60% of the standard armor threshold (vs 0.9 default). Lets your AP pen broadsiding cruisers that would over-pen a normal CA, citadel hunts the cohort can't pull off, shared by 7/44 T6 CAs.

ELITE MAIN BATTERY ↗
  • Tight grouping
  • Long gun range · 15.6 km
  • Heavy HE shells · 3600 damage
  • Big-caliber AP overmatch · 14.1 mm
High HP pool ↗

39200 HP, top decile of T6 CAs.

Fast for the class ↗

35 kt, top decile of T6 CAs. Lets you rotate flanks or escape disengagements.

Easily spotted ↗

13 km surface detect, bottom decile of T6 CAs. Visible before you can react; position early.

Visible torps ↗

1.6 km torpedo detect, bottom decile of the 34 T6 CAs with torpedoes. Spotted early, so targets get a long look and room to turn out.

Acquisition

How to get ARP Haguro

ARP Haguro is a Premium ship and not available to unlock in the Tech Tree. Acquisition path: Containers. Container chances are shown as the listed odds of receiving this exact ship, dividing grouped ship-pool odds across the resolved ships and including nested container paths when a crate can drop another crate.

While you save up, check active promo codes for free doubloons, camouflages, and other rewards.

Best listed chance for this ship

  • Arpeggio II crate 2.5% Arpeggio II Premium Ship Collaboration · Arpeggio II crate · 1 of 2 ships
Show direct source rows

Want the full picture? Each container page charts the odds as you open more crates - including pity guaranteed-reward timers and, for GD Supporters, pack math personalized to your port.

Builds

Pair with a commander whose unique skill complements her main armament; check the build tool for current recommendations.

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Cohort position

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Where ARP Haguro sits among Tier VI CAs (43 ships). Notable standouts are shown first; the rest of the cohort-ranked stats are in the expand below. Acquisition variants (Black Friday, Founders Edition) are counted once with their base ship, not as separate peers.

LongestAP fuse timer0.033 s (1 of 21 tied) Top 10%Main battery range15.6 km (3/44) Top 10%Sigma2.1 (3/44) Top 10%HE shell damage3,600 (3/37) Top 25%Hit points39,200 HP (6/44) Top 25%Max speed35 kt (8/44) Top 25%Rudder shift7.2 s (7/44) Top 25%HE fire chance17% (6/37) Top 25%Secondary HE alpha2,100 (5/39) Top 25%Secondary fire chance8% (9/39) Top 25%Secondary HE pen21 mm (9/39) Top 25%Engine power130,000 hp (7/44) Top 25%Power / turn radius166.7 hp/m (9/44) Top 25%Torpedo damage≈15,933 (9/34) Bottom 25%Concealment13 km (40/44) Bottom 25%Turning circle780 m (37/44) Bottom 25%Main battery reload14.5 s (36/44) Bottom 25%Secondary DPM (per side)66,566 (33/39) Bottom 25%Displacement15,807 t (35/44) Bottom 25%Torpedo reaction time9.6 s (30/34) Bottom 10%Smoke fire bloom7.49 km (41/44) Bottom 10%Main dispersion140.6 m (41/44)
See 30 mid-pack stats

Not standouts for ARP Haguro -- here's where she sits on every other ranked stat in the cohort. Stats tagged NORM are tied across more than half the cohort, so the value is the cohort default rather than a standout.

Air detection7.19 km(25/44) Main battery caliber203 mm(14/44) Fires per minute7(18/37) HE DPM148,235(16/37) AP shell damage4,600(18/43) AP DPM189,412(32/43) AP velocity840 m/s(29/43) HE velocity840 m/s(25/37) Time to 90% speed25.3 s(32/44) Acceleration (0-12 kt)8.7 s(21/44) AP arming threshold34 mm(30/43) Power-to-weight8.22 hp/t(17/44) AP pen at 10 km203 mm(17/43) Effective HE DPM (incl. fire)200,582(16/37) AA DPS267(24/44) AA range5 km(15/44) AA threat953(23/44) Flak damage per salvo (expected)756(27/43) Torpedo range9.99 km(11/34) Torpedo speed62 kt(15/34) Torpedo reload82 s(15/34) Max armor102 mm(31/44) Citadel belt102 mm(27/44) Bow armor16 mm(25/44) Stern armor16 mm(25/44) NormSecondary dispersion bracket57(38 of 39 tied at this value) NormAP ricochet start45°(33 of 43 tied at this value) NormAP auto-bounce angle60°(32 of 43 tied at this value) NormTurn speed retained81%(39 of 44 tied at this value) NormSecondary range4.5 km(26 of 39 tied at this value)
Survivability
Hit Points39,200
Displacement15,807 t
Hull dimensions
ƒLength x beam at the waterline, plus draft. Length matters when dodging torpedoes; beam and draft shape how hard the ship is to hit.
202.8 x 20.4 m (ship-model figure)
Armor range6–102 mm
Plate armor thicknesses6, 13, 16, 19, 21, 25, 30, 32, 35, 38, 40, 50, 57, 63, 76, 89, 102 mm
Armor material/layer entries59
Fire resistance
ƒtop hull: 1 − 0.7003 fire coefficient = 30%. Lowers how often hits set you on fire. It does not reduce the damage a burning fire does per second; fires burn at the full rate on every ship.
30%
Fire duration30 s
Fire damage
ƒOne unattended fire: 0.003 of max HP per second (0.3%) × 30 s = 0.09 of the pool; 0.09 × 39,200 HP = 3,528 HP on this ship. 4 fire points can burn at once.
0.3% of HP per second
Flood duration40 s
Flood damage
ƒOne unattended flood: 0.0025 of max HP per second (0.25%) × 40 s = 0.1 of the pool; 0.1 × 39,200 HP = 3,920 HP on this ship.
0.25% of HP per second
Torp Reduction
ƒ1 − 0.29 hull torpedo-damage coefficient / 0.333 unprotected baseline = 13%. Reduces torpedo hit damage. It does not affect flooding: floods start as often and tick at the full rate.
13%
Magazine HP
ƒPer-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.
19,600
Steering gear HP
ƒDurability 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.
11,800
Repairable: penetration50%
Repairable: citadel10%
Repairable: steering gear50%
Section HP
Bow section HP
ƒDamage saturation pool for the bow: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 2,200 = 4,400), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
2,200
Casemate section HP
ƒDamage saturation pool for the casemate: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 4,300 = 8,600), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
4,300
Hull section HP
ƒDamage saturation pool for the hull: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 29,400 = 58,800), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
29,400
Superstructure section HP
ƒDamage saturation pool for the superstructure: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 3,200 = 6,400), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. The superstructure is not exempt: it saturates exactly like the bow and stern, so shells aimed at it stop dealing full damage once this pool is used up. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
3,200
Stern section HP
ƒDamage saturation pool for the stern: penetrations here deal their normal share until twice this much penetration damage has landed on the section (2 × 2,100 = 4,200), then further hits on it deal half damage. A penetration deals 0.33 × the shell's max damage; once the section is saturated it deals exactly half of that (0.5 × 0.33 = 0.165 × max damage), so a 3,000-damage shell's pen goes from 990 to 495. Overpens (0.1 × max damage) and citadels (1.0 ×) ignore saturation. Pens on the ship's other, unsaturated sections still deal the normal 0.33 ×. A larger pool keeps that part of the ship taking full damage for longer; a small one saturates fast and protects the ship's HP.
2,100
Citadel section HP
ƒThis section has no practical saturation cap: every hit here keeps dealing its normal share of damage (on most ships the citadel; on many destroyers the casemate).
No saturation cap
Main Battery
ModuleArtillery: 203 mm 3rd Year Type mod. C
Mounts / barrels5 mounts / 10 barrels
Reload time14.5 s
Firing range15.6 km
Turret traverse4 °/s
Turret armor25 mm
Turret traverse arcs
ƒHow far each mount can train, in degrees to either side of the mount's own facing. 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.
2x ±150°, ±139°, ±128°, ±140°
Guns to bear
ƒ180° − 127° (the most restricted aft-facing mount's arc) = 53° off bow; 180° − 128° (the most restricted forward-facing mount's arc) = 52° off stern. 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.
53° off bow / 52° off stern
Shell Grouping (σ)2.1
Dispersion type
ƒIn practice: the baseline curve for a standard cruiser -- at max range (15.6 km) shells land in an ellipse about 141 m wide and 84 m tall. Also on this curve (215): AL Baltimore, AL Chapayev, AL Cheshire, AL Harbin, AL Montpelier, AL Tallinn, AL Zara, Aberdeen, Accord, Agano, Albemarle, Algérie and 203 more.
Standard cruiser
Max Horiz Disp
ƒHorizontal dispersion ellipse width at max range, from the dispersion model: σH=(R30·idealRadius−minRadiusidealDistance+minRadius)·30 =(1560030·8−1.11000+1.1)·30=140.6m
140.6 m at 15.6 km
Max Vert Disp
ƒVertical dispersion ellipse height at max range: σV=σH·radiusOnMax =140.6·0.6=84.4m
84.4 m at 15.6 km
Med Horiz Disp
ƒ50%-hit horizontal radius: σH,50=σH·0.6σ =140.6·0.62.1=40.2m
40.2 m at 15.6 km
Med Vert Disp
ƒ50%-hit vertical radius: σV,50=σV·0.6σ =84.4·0.62.1=24.1m
24.1 m at 15.6 km
Turret turn time
ƒ180 degrees / 4 deg/s traverse speed = 45 s.
45 s
Shells/min
ƒ10 broadside guns x 60 / 14.571 s (14.5 s = 102 ticks) base reload = 41.2.
41.2
HE shells
HE alpha3,600
HE Velocity840 m/s
Fire Chance17%
HE fire DPM vs T6 BB52347
Effective HE DPM vs T6 BB200582
HE penetration
ƒ34 mm ≈ 203 mm caliber / 6 (standard HE penetration ratio).
34 mm
HE full-salvo alpha
ƒ3,600 HE damage x 10 broadside guns = 36,000.
36,000
HE DPM
ƒ36,000 HE full-salvo alpha x 60 / 14.571 s (14.5 s = 102 ticks) base reload = 148,235.
148,235
Fires/min
ƒ41.2 shells/min × 0.17 (17% fire chance) = 7.
7
AP shells
AP alpha4,600
AP Velocity840 m/s
Min Ricochet45 deg
Guaranteed Ricochet60 deg
Fuse Timer0.033 s
Fuse Threshold34 mm
Improved AP FuseYes
AP pen max range147 mm
AP overmatch
ƒfloor(203 mm caliber / 14.3) = 14 mm (AP auto-penetrates plating this thick or less).
14 mm
AP Pen Close
ƒAP formula evaluated at muzzle velocity: P=10−7·K·m0.69·d−1.07·v01.38 =10−7·2468·125.850.69·0.203−1.07·8401.38=414.7mm.
414.7 mm point-blank
AP Pen Far
ƒSame formula at the ship's max firing range (15.6 km), where the shell has slowed to 396.4 m/s: P=10−7·2468·125.850.69·0.203−1.07·396.41.38=147.1mm.
147.1 mm at 15.6 km
AP full-salvo alpha
ƒ4,600 AP damage x 10 broadside guns = 46,000.
46,000
AP DPM
ƒ46,000 AP full-salvo alpha x 60 / 14.571 s (14.5 s = 102 ticks) base reload = 189,412.
189,412
AP AOE Radius
ƒAP 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.
24
Torpedoes
ModuleTorpedoes: 610 mm triple
Launchers / tubes4 launchers × 3 tubes = 12 tubes
Reload time82 s
Projectile speed62.0 kt
Range9.99 km
Maximum simulated damage
ƒMost targets only intersect one hull section, so a hit transfers about 1/3 of the warhead alpha (2/3 when the warhead blast >= 5000 and the burst reaches a second section). For this ship: Dsim=α·c=47,800·0.333=15,933. In battle, a hit on the torpedo belt deals the per-hit figure × (1 − the target's torpedo protection %), a bow or stern hit deals it in full, and a torpedo never counts as a citadel hit.
≈ 15,933
Maximum damage (ammunition)
ƒ47,800 warhead alpha / 3 + 1,300 blast = 17,233. Warhead alpha / 3 plus the blast addend: the per-torpedo damage figure. The 'Maximum simulated damage' row above applies target geometry to the same warhead.
17,233
Torpedo module damage
ƒPer-torpedo module/blast damage parameter. Most torpedoes carry 500 to 2,000; ships announced by WG as dealing increased module damage carry 9,000 to 12,000, so their hits knock out engines, rudders, and turrets far more often. Comparative figure.
1,300
Torpedo detectability1.6 km
Reaction time
ƒHow long a target has to dodge after your torpedo is spotted at its detectability range (lower means less warning): treact=1.6 km62 kt×2.6855=9.6 s. 2.6855 converts knots to m/s on the game clock. Base value; commander torpedo-concealment skills lower it further.
9.6 s
Flooding chance
ƒThis torpedo carries a flooding-chance value of 2.87 per hit, shown as 2.87×100=287%. 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.
287%
Torpedo launcher traverse25 °/s
Launch arcswing 88° (one launcher per beam)
Torp Turn
ƒTime to rotate the launchers 180 deg: tturn=180°25°/s=7.2s.
7.2 s
Torp Arming197 m
Per-side salvo damage
ƒOne side firing, all torpedoes hitting: per-side tubes x per-torpedo simulated damage = 6 x 15,933 = 95,598. Each hit on the target's torpedo belt is reduced by its torpedo protection %.
95,598
AA Defense
AA mount points38
Maximum AA range
ƒLongest-reaching family on the in-game AA card. Base AirDefense aura max range is 3.1 km; dual-purpose mount auras extend it.
5 km
25 mm Type96 mod. 14×3 25mm
25 mm/60 Type96 mod. 126×1 25mm
25 mm Type96 mod. 18×2 25mm
127 mm Type89 mod. A1 (DP)
ƒDual-purpose: your secondaries doing double duty against aircraft. The same mounts appear on the Secondary Battery card - shared guns, not extra hardware.
4×2 127mm
Far aura
Guns127 mm Type89 mod. A1 (DP)
Continuous DPS
ƒEffective 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 66 from dual-purpose secondaries firing as AA in this range band.
66
Range5 km
Medium aura
Guns25 mm Type96 mod. 1 + 25 mm/60 Type96 mod. 1
Continuous DPS
ƒEffective DPS: 64 raw aura damage × 3.5 × 0.9 hit probability = 202 - the same in-game units as the Close-range AA DPS headline.
202
Range3.1 km
Total DPS in Aura
ƒFar 66 + Medium 202 = 268
268
Flak
AA explosions
ƒEach ~2 s salvo fires 2 AA explosions in quick succession, each leaving 2 clouds ahead of the attacking squadron - up to 4 clouds per salvo × 210 damage each. Planes that fly into a cloud take its damage; clouds dissipate before the next salvo lands. Defensive AA Fire, where fitted, multiplies the AA explosions within each salvo, and commander skills that raise the Number of AA explosions add to it.
2 per salvo, 2 clouds each
Cloud damage
ƒDamage a plane takes for flying into one flak cloud, before any reductions.
210
Cloud spawn chance
ƒEach cloud in the pattern rolls this chance to spawn, so salvos 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.
90%
Salvo interval
ƒA new flak salvo (the AA explosions above) fires roughly every 2 s.
every ~2 s
Fired by
ƒFlak keeps firing while at least one secondary battery mount is operational - even losing every dedicated AA mount does not stop it.
Secondary battery
Flak zone
ƒThe activation band: flak fires while attacking planes are inside it. Clouds are placed ahead of the planes' path, so clouds can land short of 2.5 km or past 5 km - once planes get inside the band, new salvos stop. AA range bonuses push the outer edge out; the 2.5 km inner edge does not move.
2.5-5 km
S
Secondary Battery
Mounts4
Firing range4.5 km
Shell Grouping (σ)1
Secondary DPM (per side)
ƒSum across all secondary families of (per-side barrels × 60 / reload_s × alpha), with each reload counted in whole 1/7 s ticks (guns fire on the first tick after the reload), where per-side barrels = mounts × barrels-per-mount / 2 (the guns that bear on one broadside target). Per-family: 4×2 127 mm (4/side) × 60/7.571 s (7.5 s = 53 ticks) × 2100 = 66,566. Assumes every shell hits (real hit rate is lower; the Brawl matchup tool on the Compare page folds in dispersion + target armor).
66,566
Secondary fire DPM vs T6 BB (per side)
ƒFires/min (per side) 2.5 × (1 − 0.3 fire resistance) × 60 s × 0.003 of max HP per second × 59,350 HP = 18,963. Per side: the barrels that bear on one broadside target (mounts × barrels / 2). A ceiling: assumes every shell hits and ignores the four-fire cap and Fire Prevention.
18,963
Total secondary DPM vs T6 BB (per side)
ƒSecondary DPM (per side) 66,566 + secondary fire DPM 18,963 = 85,529: shell damage plus fire damage against one T6 battleship, every shell hitting.
85,529
127 mm Type89 mod. A1 (DP)
ƒDual-purpose: the same mounts also fire at aircraft, so they appear on the AA Defense card too - shared guns, not extra hardware.
4×2 127mm
Caliber127 mm
Reload time7.5 s
HE alpha2,100
Muzzle Velocity725 m/s
Fire Chance8%
Secondary fires/min (per side)
ƒ4×2 barrels / 2 sides × 60 / 7.571 s (7.5 s = 53 ticks) × 0.08 (8% fire chance) = 2.5. Per side: the barrels that bear on one broadside target (mounts × barrels / 2). A ceiling: assumes every shell hits and ignores the four-fire cap and Fire Prevention.
2.5
HE Pen21 mm
Secondary dispersion type
ƒMax dispersion = range (km) × 57 + 30. Each dispersion type sets its own slope; this is not a percentage applied to a standard baseline.
Standard
Max secondary dispersion @ 4.5 km
ƒ4.5 km × 57 + 30 = 286.5 m.
286.5 m
Maneuverability
Engine power130,000 hp
Maximum speed35.0 kt
Turning circle radius780 m
Rudder shift time7.2 s
Engine power-boost threshold7.0 kt
Engine spool-up time15.3 s
Reverse spool-up time7.7 s
Reverse speed
ƒtop speed / 4 + 4.9 = 35 / 4 + 4.9 = 13.7 kt. Base value; speed modifiers scale it.
13.7 kt
Crash stop
ƒSeconds 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, using the ship's own reverse-power ratio. The full curve is on the acceleration chart. Full reverse stops about a quarter faster than a plain Stop order from top speed.
28.6 s
Engine boost threshold (reverse)
ƒSpeed below which the engine's built-in power boost applies in reverse.
9.7 kt
Acceleration 0-90%
ƒTime to reach 90% of top speed (31.5 kt of 35.0 kt).
25.3 s
Acceleration 0-99%
ƒTime to reach 99% of top speed (34.6 kt of 35.0 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.
40.4 s
Guns in a full turn
ƒWith the rudder hard over the hull turns 5.5°/s, so a target drifts across the bow at that rate. Turret traverse minus hull turn: 4 − 5.5 = -1.5°/s, so the guns fall behind and catch up once the turn eases. Main Battery Mod. 2 (+20% traverse) and Mod. 3 (−15%) move this line.
fall behind by 1.5°/s
Concealment
Detectability by sea
ƒBase value, no camouflage. With a Grade IV permanent camo (or any disposable camo): 13 km x 0.955 = 12.41 km. Camouflage does not change detectability by air.
13 km
With Grade IV camouflage (sea)
ƒDetectability by sea 13 km x 0.955 (Grade IV permanent camo or any disposable camo) = 12.41 km.
12.41 km
Detectability by air7.19 km
Smoke firing penalty7.49 km
Detect when firing (sea)
ƒmax(main battery range, sea detectability 13 km) = 15.6 km. Equal to the ship's main battery range (never below base detectability): firing makes you visible to everyone you can reach.
15.6 km
Detect when firing (air)
ƒAir detectability 7.19 km + gun-firing bloom 4.06 km = 11.25 km. The bloom tracks main-battery caliber 203 mm × 0.020 = 4.06 km.
11.25 km
Detect when on fire (sea)
ƒSea detectability 13 km + 2.0 km while burning = 15 km.
15 km
Detect when on fire (air)
ƒAir detectability 7.19 km + 3.0 km while burning = 10.19 km.
10.19 km
Guaranteed Detect2 km
✦
Consumables
Damage Control Party∞ charges · 60 s reload · 5 s active
Choose one
Sonar2 charges · 180 s reload · 94 s active · 4.2 km ship detect
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 140×301000=4.2 km
· 2.97 km torpedo detect
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 99×301000=2.97 km
Defensive AA Fire3 charges · 140 s reload · 25 s active · ×2 flak burst boost
ƒRepeats the flak burst pattern ×2 within each salvo - more clouds in the air over the salvo, at the same spots.
Catapult Fighter3 charges · 80 s reload · 70 s active · 5 km patrol radius
ƒDerived from the consumable's 30 m grid-unit range (km = grid units x 30 / 1000): 167×301000=5 km
· 1 squadron size

Under the hood

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All values are ship base stats with modifications and upgrade changes denoted inline.

The constants behind the formulas and the long tail: shell and dispersion inputs, fixed-range anchors, salvo math, layered AA. Click the formula chip on any row to see how it is calculated.

Main battery formulas

vs standard cruiserStandard
The standard cruiser dispersion curve.
Shell scatter width @ 5 km67.5 m
(166.7 × (8 − 1.1) / 1000 + 1.1) × 30 = 67.5 m. Horizontal scatter at a fixed 5 km, from the same dispersion model as the rows below - a knife-fight-range anchor comparable across ships.
Shell scatter width @ 10 km102 m
(333.3 × (8 − 1.1) / 1000 + 1.1) × 30 = 102 m. How wide your shells scatter at 10 km, from the same dispersion model as the max-range figure above. Picking a fixed range makes this number directly comparable from ship to ship: max-range dispersion makes a longer-range gun look worse even when it's tighter at any common range. The interactive Dispersion tab on the Charts card plots the full curve from 0 to max range.
Shell scatter width @ 15 km136.5 m
(500 × (8 − 1.1) / 1000 + 1.1) × 30 = 136.5 m. Horizontal scatter at a fixed 15 km, from the same dispersion model - the long-range anchor. Only shown when the ship's guns reach 15 km.
Shell scatter height @ 5 km26.5 m
How tall the scatter ellipse is at a fixed 5 km, from the same model, comparable from ship to ship. The height/width ratio is a piecewise-linear curve through three points from the ship's own dispersion data: radiusOnZero=0.2 at 0 m, radiusOnDelim=0.5 at delim·Rmax=0.5·15600=7800 m, and radiusOnMax=0.6 at 15600 m. Below the kink: k=0.2+(0.5−0.2)·50007800=0.3923, so σV=σH·k=67.5·0.3923=26.5m.
Shell scatter height @ 10 km53.9 m
How tall the same scatter ellipse is at 10 km. Comparable from ship to ship for the same reason as the width value above. The height/width ratio is a piecewise-linear curve through three points from the ship's own dispersion data: radiusOnZero=0.2 at 0 m, radiusOnDelim=0.5 at delim·Rmax=0.5·15600=7800 m, and radiusOnMax=0.6 at 15600 m. Above the kink: k=0.5+(0.6−0.5)·10000−780015600−7800=0.5282, so σV=σH·k=102·0.5282=53.9m.
Shell scatter height @ 15 km80.9 m
How tall the scatter ellipse is at a fixed 15 km, from the same model. Only shown when the ship's guns reach 15 km. The height/width ratio is a piecewise-linear curve through three points from the ship's own dispersion data: radiusOnZero=0.2 at 0 m, radiusOnDelim=0.5 at delim·Rmax=0.5·15600=7800 m, and radiusOnMax=0.6 at 15600 m. Above the kink: k=0.5+(0.6−0.5)·15000−780015600−7800=0.5923, so σV=σH·k=136.5·0.5923=80.9m.
AP pen 5 km288 mm
AP penetration at a fixed 5 km, from the same ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the AP formula P=10−7·K·m0.69·d−1.07·v1.38 =10−7·2468·125.850.69·0.203−1.07·644.61.38=288mm, where 644.6 m/s is the shell's speed when it arrives at 5 km (from 840 m/s at the muzzle). Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.
AP pen 10 km203 mm
AP penetration at a fixed 10 km, from the same ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the AP formula P=10−7·K·m0.69·d−1.07·v1.38 =10−7·2468·125.850.69·0.203−1.07·500.71.38=203mm, where 500.7 m/s is the shell's speed when it arrives at 10 km (from 840 m/s at the muzzle). Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.
AP pen 15 km151 mm
AP penetration at a fixed 15 km, from the same ballistic curve as AP Pen Close/Far: the shell's impact velocity at that range fed through the AP formula P=10−7·K·m0.69·d−1.07·v1.38 =10−7·2468·125.850.69·0.203−1.07·404.81.38=151mm, where 404.8 m/s is the shell's speed when it arrives at 15 km (from 840 m/s at the muzzle). Fixed anchors make ships directly comparable at the same fighting distance; the Charts card plots the full curve.
AP flight time @ 10 km5.67 s
How long an AP shell takes to reach a target at a fixed 10 km, from the same numerically integrated trajectory the Charts card plots. The shell slows under quadratic air drag, adrag=kρv2, where ρ is air density from a standard-atmosphere profile and k bundles the shell's drag coefficient, caliber and mass: k=πCdd28m=π·0.337·0.20328·125.85=4.33×10−5. That runs from a 840 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77 because the game clock runs faster than real time. Lower is better, since a faster shell is harder to dodge and needs less lead.
HE flight time @ 10 km5.67 s
How long an HE shell takes to reach a target at a fixed 10 km, from the same numerically integrated trajectory the Charts card plots. The shell slows under quadratic air drag, adrag=kρv2, where ρ is air density from a standard-atmosphere profile and k bundles the shell's drag coefficient, caliber and mass: k=πCdd28m=π·0.337·0.20328·125.85=4.33×10−5. That runs from a 840 m/s muzzle velocity in 0.02 s steps under gravity 9.8 m/s² until the shell lands, then divides by 2.77 because the game clock runs faster than real time. Lower is better, since a faster shell is harder to dodge and needs less lead.
Guns per full salvo (alpha, DPM)10
5 mounts × 2 barrels = 10; all 10 bear on the broadside.

Model inputs

Krupp (AP)2,468
Armor-penetration constant of the AP shell; penetration scales straight with it, so a 10% higher Krupp is 10% more penetration at every range.
AP shell mass125.85 kg
Enters penetration as mass^0.69 and slows the shell's drag deceleration, so a heavier shell keeps more velocity at range.
AP drag coefficient0.337
Air drag on the AP shell in flight; lower keeps velocity, and with it penetration, at long range.
AP muzzle velocity840 m/s
Starting speed of the AP shell; penetration scales with velocity^1.38.
HE muzzle velocity840 m/s
Starting speed of the HE shell; sets its flight time and lead.
idealRadius8
Horizontal dispersion growth per idealDistance of range, in 30 m units; the slope of the scatter-width line.
minRadius1.1
Horizontal dispersion at zero range, in 30 m units; the intercept of the scatter-width line.
idealDistance1,000 m
Range step over which horizontal dispersion grows by idealRadius.
taperDist4,000 m
Inside this range the scatter width tapers toward minRadius instead of following the line.
radiusOnZero0.2
Vertical scatter as a share of horizontal at zero range.
radiusOnDelim0.5
Vertical scatter as a share of horizontal at the delim point.
radiusOnMax0.6
Vertical scatter as a share of horizontal at maximum range.
delim0.5
Where the vertical-scatter curve bends, as a share of maximum range.

Torpedoes

Estimated torpedo reaction time9.6 s
1600 m / (62.0 kt × 2.6855) = 9.6 s. detectability / (speed kt x 2.6855 m/s per knot on the game clock).
Torpedo speed62.0 kt
Travel time to max range60 s
9990 m / (62.0 kt × 2.6855) = 60 s. range / (speed kt x 2.6855 m/s per knot on the game clock).
Tube count12
4 launchers × 3 tubes.
Per-side salvo6 torpedoes
12 wing tubes / 2 = 6: the launchers sit one per beam, so only half of them reach any one side. Each launcher reloads on its own, so she can fire one beam, turn, and fire the other without waiting.
Full-salvo damage191,196
All tubes hitting one target: tubes x per-torpedo simulated damage = 12 x 15,933 = 191,196. Each hit on the target's torpedo belt is reduced by its torpedo protection %.

AA defense

AA DPS at max range66
Only families that reach 5 km contribute at the outer edge of the AA bubble. In-game families: 25mm Type96 4x3 -> 21 DPS @ 3.1 km; 25mm Type96 single 26x1 -> 138 DPS @ 3.1 km; 25mm Type96 double 8x2 -> 42 DPS @ 3.1 km; 127mm40 Type89 3 4x2 -> 66 DPS @ 5 km.
AA DPS layered by range66 DPS @ 5 km, 267 DPS @ 3.1 km
@ 5 km: 66 from one family; @ 3.1 km: 21 + 138 + 42 + 66 = 267. Cumulative AA DPS at each family range threshold. Inner ranges stack the outer families, so a target closing the distance hits stronger AA bubbles as it crosses each band.
AA DPS at point-blank267
21 + 138 + 42 + 66 = 267 DPS: the sum of every family's average DPS, achievable only inside the closest-range family (3.1 km).
AA threat index953
21 × 3.1 + 138 × 3.1 + 42 × 3.1 + 66 × 5 = 953. SUM over AA auras of (aura DPS x aura range km). A plane crossing the AA bubble is exposed to each aura for a time proportional to that aura's range, so long-reach DPS is worth more than the same DPS in a short bubble. Units: DPS*km; used to rank overall AA threat across the cohort.

Secondary battery firepower

Max HE alpha2100
The only family (127 mm): 2100. Maximum HE damage per shell across secondary HE families. Best on this ship: 2100 from the 127 mm family.
Max HE fire chance8%
The only family (127 mm): 8%. Maximum per-shell fire chance across secondary HE families (before target fire resistance is applied). Best on this ship: 8% from the 127 mm family.
Max HE pen21 mm
The only family (127 mm): 21 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: 21 mm from the 127 mm family.
Open in Charting Tool

Ship Charts

Background

A Myōkō class heavy cruiser equipped with multiple gravitation engines. She's considered to be the fastest ship of the "Fleet of Fog," and she can tear up the battlefield with her unrivaled speed. This warship is modeled on heavy cruiser Haguro as she appears in "Arpeggio of Blue Steel -ARS NOVA-." © AP / SG, Ap

Armor Beta

Hull HP 39,200, distributed across 5 hull zones, each with its own plate thicknesses, saturation cap, and pen thresholds. HP caps are estimates.

Bow & stern16 mm

Overmatched by 126+ AP guns across the bracket. Can’t reliably bow-tank; gets bow-citadelled and overpenned.

Belt / citadel102 mm

Thin belt: battleship AP citadels straight through it broadside. Rely on angle, speed and concealment, never sit flat.

Farming6 mm

Superstructure and extremities take HE pens and AP overpens from nearly any gun: steady chip damage. Fire resistance 30%, fires burn 30s. Range-by-range in the Compare tool →

Section Plates HP cap Threats Tactic
Bow16 mm primary (range 16–30 mm)≈ 1,960 (~5% of HP)
Overmatched by 283mm+ AP (Graf Spee, Scharnhorst)Angle bounces 203mm16 mm: HE pens from 127mm+
Bow-tank fits behind this exterior plate. Saturation is FAST here; the cap is often only a few thousand HP.
Hull (midship)32 mm primary (range 6–89 mm)≈ 29,400 (~75% of HP)
Overmatch not possible in its bracketAngle bounces 410mm32 mm: HE pens from 203mm+
Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern16 mm primary (range 16–50 mm)≈ 1,960 (~5% of HP)
Overmatched by 283mm+ AP (Graf Spee, Scharnhorst)Angle bounces 203mm16 mm: HE pens from 127mm+
Mirror of bow. Same fast saturation.
Citadel102 mm primary (range 19–102 mm)no cap
Citadel pen: full damageOver-pen: ×0.10 damage
Effectively no cap; citadel pool sits at ~165k HP on every ship. An AP citadel penetration deals the shell's full damage, the biggest single hit available; only over-penetrations are damped, to ×0.10.
Superstructure6 mm primary (range 6–25 mm)no cap
Any HE ≥16 mm pens at full damage
Any HE ≥16 mm pens at full damage. HE-spam target, and the section saturates fast (often only a few thousand HP).

Saturation cap = HP a section can absorb before further damage to it is reduced (the "bow-tank" effect). Citadel pool is ~165k on every ship (effectively no cap); damage is gated by pen/over-pen multipliers instead. Superstructure saturates fast but HE always pens regardless of the plate thickness. Rudder (and other module HPs) are a separate pool from ship HP: damaging a module doesn't drain ship HP. Incapacitated modules like the rudder and engine are restored by DCP, but secondary and AA mounts destroyed at 0 HP stay out for the rest of the battle.

Exteriors

Skins & permanent camouflages

Every custom exterior ARP Haguro can equip.

  • ARP Haguro default exterior
    DefaultThe ship’s standard exterior

Primary official WG sources

Filtered to official World of Warships: Legends pages where this ship is a focus, reward, line member, or high-context variant mention.