Irian Build & Guide | WoWs Legends

Playstyle

Overview

Irian is a Tier VII Pan-Asian light cruiser with Sonar as her vision tool. Hydro lets her contest islands and smoke without exposing the hull to vision cycles, which shapes how she pressures caps.

Positioning

Sit 12-15 km from a contested cap where an island shadows you from the opposite battleship line. Hydro (5.6 km on ships, 3.9 km on torpedoes) lights up DDs and incoming torpedoes inside its bubble, so you can push the cap edge from cover without taking the spotting cycle; prefer cover positions over open-water flanks.

Potato Avoidance

Holding torpedoes for a perfect drop

The torps are a threat tool: putting them into a lane forces rotations even when they miss. Drops on probable lanes are worth more than waiting for a guaranteed broadside that never appears. A second mistake to avoid: these torpedoes ignore the Destroyer class - they pass under DDs and cannot hit them. Aim torpedo drops ONLY at battleships, carriers, and most cruisers; every torp fired at a DD is wasted output.

Signature Traits

Deep-water torpedoes

Torps IGNORE the Destroyer class (deep-water mechanic); they pass under DDs and cannot hit them. Aim ONLY at battleships, carriers, and most cruisers; every torp fired at a DD is wasted, shared by 2/46 T7 CAs.

Best-in-class stealth

10.78 km surface detect, top decile of T7 CAs. Stays dark longer.

Long-range torps

13.5 km torpedo range, top decile of T7 CAs.

Tight grouping

Sigma 2.05, top decile of T7 CAs. More shells land near aim.

Slow torp reload

133.0 s torpedo reload, worst of T7 CAs. Long wait between drops.

Slow heal cycle

80.0 s Repair Party reload, worst of T7 CAs. Heals come off cooldown slower than peers.

Acquisition

How to get Irian

Irian 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.

ContainersAppears in official container odds below; availability depends on the container being sold or awarded.

Best listed chance for this ship

Mystic Lantern 0.02% Superprize: Premium Ship Event containers · Mystic Lantern · 1 of 25 ships

Official WG availability sources

Official WoWS Legends container odds Containers Official container drop rows linked below include direct and nested effective ship odds.

Show direct source rows

Mystic Lantern 0.02% · Superprize: Premium Ship

Builds Beta

Build for fire chance, reload/range, torpedo reload/damage, concealment, and survivability.

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Cohort position

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Where Irian sits among Tier VII CAs (46 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.

BestStealth profile10.78 km / 6.47 km (1/46 / 1/46) Top 10%Sigma2.05 (5/46) Top 10%Fires per minute12 (5/41) Top 10%HE velocity950 m/s (5/41) Top 10%Torpedo range13.5 km (2/33) Top 10%Torpedo speed69 kt (4/33) Top 25%HE DPM220,000 (10/41) Top 25%AP DPM330,000 (11/46) Top 25%AP velocity950 m/s (6/46) Top 25%Acceleration9.3 s (11/46) Top 25%Torpedo damage17,900 (5/33) Top 25%Deck armor130 mm (11/44) Bottom 25%Secondary HE pen17 mm (33/40) Bottom 25%Stern armor25 mm (37/45) WorstTorpedo reload133 s (33/33) WorstRepair heal rate0.5 %/s (1 of 14 tied)

See 30 mid-pack stats

Not standouts for Irian -- 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.

Hit points41,200 HP(20/46) Max speed32.7 kt(28/46) Rudder shift13.4 s(33/46) Traverse-to-turn ratio5.68 ×(25/46) Main battery caliber152 mm(33/46) Main battery range15.33 km(34/46) Main battery reload7.2 s(17/46) HE fire chance12%(27/41) AP shell damage3,300(33/46) Main dispersion138.8 m(22/46) Secondary DPM (per side)126,000(20/40) HE alpha1,400(29/40) Secondary fire chance6%(15/40) AP fuse timer0.03 s(27/46) AP arming threshold25 mm(14/46) Engine power121,000 hp(21/45) Turn-speed retention159.2 hp/m(24/45) Displacement16,640 t(27/46) Power-to-weight7.27 hp/t(20/45) AA DPS369(26/46) AA range5 km(23/46) AA threat1,488(17/46) Max armor130 mm(31/46) Citadel belt120 mm(28/45) Bow armor25 mm(31/45) NormSecondary dispersion bracket57(37 of 40 tied at this value) NormAP ricochet start45°(33 of 46 tied at this value) NormAP auto-bounce angle60°(33 of 46 tied at this value) NormSecondary range5 km(36 of 40 tied at this value) NormRepair charges2(40 of 45 tied at this value)

Peers in this cohort

Show all 45 peers

De Zeven Provinciën vs

Stats & specs

Customize in the Build Tool →Shell ballistics chart More tools in the WoWS Legends Data Lab

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

Sonar 5.56 kmRepair 2TRBDef-AA

Survivability

Hit Points41,200

Displacement16,640 t

Armor range13–130 mm

Plate armor thicknesses13, 20, 25, 26, 27, 30, 40, 50, 70, 100, 120, 130 mm

Armor material/layer entries49

Fire resistance36.6%

Fire duration30 s

Torp Reduction0%

Magazine HP

ƒ

The magazine is the module a detonation comes from. Penetrating hits to it raise the detonation chance from 1% toward 30% as its HP is worn down, so a larger magazine pool rides out citadel hits longer before a detonation becomes likely.

20,600

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.

12,400

Main Battery

ModuleArtillery: 152 mm/57 B-38

Mounts / barrels4 mounts / 12 barrels

Reload time8 s

Firing range15.3 km

Turret traverse7.2 °/s

Shell Grouping (σ)

ƒ

Shell grouping (sigma); shown in-game as Shell Grouping.

2.05

Max Horiz Disp

ƒ

Horizontal dispersion ellipse width at max range. (R/30·(idealRadius−minRadius)/idealDistance + minRadius)·30 = (15330/30·(8−1.1)/1000 + 1.1)·30 = 138.8 m

138.8 m

Max Vert Disp

ƒ

Vertical dispersion ellipse height at max range = max horizontal × radiusOnMax = 138.8 × 0.6 = 83.3 m

83.3 m

Med Horiz Disp

ƒ

50%-hit horizontal radius = max horizontal × GetHalfHitsRatio(σ) = 138.8 × 0.313 (σ=2.05) = 43.5 m

43.5 m

Med Vert Disp

ƒ

50%-hit vertical radius = max vertical × GetHalfHitsRatio(σ) = 83.3 × 0.313 (σ=2.05) = 26.1 m

26.1 m

Turret turn time

ƒ

180 degrees / 7.2 deg/s traverse speed = 25 s.

25 s

Base shells/min

ƒ

12 broadside guns x 60 / 8 s base reload = 90.

90

HE shells

HE Damage2,200

HE Velocity950 m/s

Fire Chance12%

HE penetration

ƒ

In-game data: 30 mm = 152 mm caliber / 5.07 (non-standard HE penetration ratio).

30 mm

HE full-salvo alpha

ƒ

2,200 HE damage x 12 broadside guns = 26,400.

26,400

Base HE DPM

ƒ

26,400 HE full-salvo alpha x 60 / 8 s base reload = 198,000.

198,000

Installed HE DPM

ƒ

26,400 HE full-salvo alpha x 60 / 7.2 s installed reload (Main Battery Mod. 3 = -10%) = 220,000.

220,000

Base fires/min

ƒ

12 HE shells x 60 / 8 s reload x 12% fire chance = 10.8.

10.8

AP shells

AP Damage3,300

AP Velocity950 m/s

Min Ricochet45 deg

Guaranteed Ricochet60 deg

Fuse Timer0.025 s

Fuse Threshold25 mm

AP overmatch

ƒ

floor(152 mm caliber / 14.3) = 10 mm (AP auto-penetrates plating this thick or less).

10 mm

AP Pen Close

ƒ

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: 1e-7 × Krupp × mass^0.69 × caliber_m^-1.07 × v0^1.38 = 1e-7 × 2216 × 55^0.69 × 0.152^-1.07 × 950^1.38 = 339.7 mm. Matches the in-game spec card.

339.7 mm

AP Pen Far

ƒ

Same formula at the ship's max firing range (19.2 km), where the shell has slowed to 338.3 m/s: 1e-7 × 2216 × 55^0.69 × 0.152^-1.07 × 338.3^1.38 = 81.7 mm.

81.7 mm

AP full-salvo alpha

ƒ

3,300 AP damage x 12 broadside guns = 39,600.

39,600

Base AP DPM

ƒ

39,600 AP full-salvo alpha x 60 / 8 s base reload = 297,000.

297,000

Installed AP DPM

ƒ

39,600 AP full-salvo alpha x 60 / 7.2 s installed reload (Main Battery Mod. 3 = -10%) = 330,000.

330,000

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.

15

◇

Torpedoes

ModuleTorpedoes: 533 mm PTA-53-68-bis

Launchers / tubes2 launchers × 5 tubes = 10 tubes

Reload time133 s

Projectile speed69 kt

Range13.5 km

Maximum simulated damage16,700 (est.)

Alpha damage50,100

Torpedo detectability0.8 km

Torpedo launcher traverse25 °/s

Torp Turn7.2 s

Torp Arming213 m

Deep-Water TorpedoesYes

Per-side salvo damage

ƒ

per-side salvo x per-torpedo simulated damage.

83,500

AA Defense

AA mount points16

Close-range AA DPS

ƒ

Sum across every AA aura on this ship of (aura.continuous_damage x 3.5 x aura.hit_probability). Here: (75×3.5×0.9) + (42×3.5×0.9) = 369. Covers AA-only mounts plus dual-purpose secondaries (Bismarck 105mm, USN 5"/38 cruiser secondaries) and dual-purpose main batteries (Sumner-class 5"/38, Akizuki-line 100mm). Formula validated against in-game captures on California, Sumner, Manfred von Richthofen, Dante Alighieri (exact) and within +/-17% on the remaining verified ships.

369

Maximum AA range

ƒ

Longest-reaching aura across AA-only + dual-purpose auras.

5 km

37 mm 61 shì16×2 37mm

100 mm/70 SM-5-1s (DP)6×2 100mm

DPS

ƒ

Includes 42 continuous AA damage from dual-purpose secondaries firing as AA in this range band.

42

Range5 km

DPS75

Range3.5 km

Total DPS in Aura

ƒ

Far 42 + Medium 75 = 117

117

S

Secondary Battery

Mounts6

Firing range5.0 km

Shell Grouping (σ)1

Caliber100 mm

Reload time4 s

HE Damage1,400

Muzzle Velocity1000 m/s

Fire Chance6%

Armor Pen17 mm

Min Ricochet91°

Max Ricochet60°

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.

Standard

Max secondary dispersion @ 5 km

ƒ

5 km × 57 + 30 = 315 m.

315 m

Maneuverability

Engine moduleEngine: 121,000 hp

Engine power121,000 hp

Maximum speed32.7 kt

Turning circle radius760 m

Engine power multiplier speed threshold7 kt

Traverse-to-turn ratio5.7× slow

Concealment

Detectability by sea10.78 km

Detectability by air6.47 km

Smoke firing penalty4.92 km

Detect after firing main guns10.78 km

Detect Fire Sea12.78 km

Detect Fire Air9.47 km

Guaranteed Detect2 km

✦

Consumables

Damage Control Party∞ charges · 60 s reload · 5 s active

Sonar2 charges · 180 s reload · 100 s active · 5.56 km ship detect · 3.89 km torpedo detect

Choose one

Repair Party2 charges · 80 s reload · 28 s active · 0.5% heal per second · 14% of max HP total heal

Defensive AA Fire3 charges · 140 s reload · 25 s active · +100% flak burst boost

Torpedo Reload Booster2 charges · 360 s reload · 8 s active · Rapid torpedo reload

Module options (1)

Stats above use the fully-upgraded modules. These are the research-tree alternatives; trade-offs are flagged.

HullUpgrade

Turret traverse7.2 → 13.4 °/s

See all derived stats

Show ▾

Numbers the spec table cannot show directly: alpha-strike math, DPM, dispersion, AP penetration. Click the formula chip on any row to reveal how it is calculated.

Main battery formulas

Shell Grouping (σ)2.05

Shell grouping (sigma); shown in-game as Shell Grouping.

Max Horiz Disp138.8 m

Horizontal dispersion ellipse width at max range. (R/30·(idealRadius−minRadius)/idealDistance + minRadius)·30 = (15330/30·(8−1.1)/1000 + 1.1)·30 = 138.8 m

Max Vert Disp83.3 m

Vertical dispersion ellipse height at max range = max horizontal × radiusOnMax = 138.8 × 0.6 = 83.3 m

Med Horiz Disp43.5 m

50%-hit horizontal radius = max horizontal × GetHalfHitsRatio(σ) = 138.8 × 0.313 (σ=2.05) = 43.5 m

Med Vert Disp26.1 m

50%-hit vertical radius = max vertical × GetHalfHitsRatio(σ) = 83.3 × 0.313 (σ=2.05) = 26.1 m

AP Pen Close339.7 mm

Canonical community AP formula (jcw780/wows_shell), evaluated at muzzle velocity: 1e-7 × Krupp × mass^0.69 × caliber_m^-1.07 × v0^1.38 = 1e-7 × 2216 × 55^0.69 × 0.152^-1.07 × 950^1.38 = 339.7 mm. Matches the in-game spec card.

AP Pen Far81.7 mm

Same formula at the ship's max firing range (19.2 km), where the shell has slowed to 338.3 m/s: 1e-7 × 2216 × 55^0.69 × 0.152^-1.07 × 338.3^1.38 = 81.7 mm.

HE penetration30 mm

In-game data: 30 mm = 152 mm caliber / 5.07 (non-standard HE penetration ratio).

AP overmatch10 mm

floor(152 mm caliber / 14.3) = 10 mm (AP auto-penetrates plating this thick or less).

AP AOE Radius15

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 alpha12

All 12 barrels bear on the broadside.

Turret turn time25 s

180 degrees / 7.2 deg/s traverse speed = 25 s.

HE full-salvo alpha26,400

2,200 HE damage x 12 broadside guns = 26,400.

AP full-salvo alpha39,600

3,300 AP damage x 12 broadside guns = 39,600.

Base HE DPM198,000

26,400 HE full-salvo alpha x 60 / 8 s base reload = 198,000.

Base AP DPM297,000

39,600 AP full-salvo alpha x 60 / 8 s base reload = 297,000.

Installed HE DPM220,000

26,400 HE full-salvo alpha x 60 / 7.2 s installed reload (Main Battery Mod. 3 = -10%) = 220,000.

Installed AP DPM330,000

39,600 AP full-salvo alpha x 60 / 7.2 s installed reload (Main Battery Mod. 3 = -10%) = 330,000.

Base shells/min90

12 broadside guns x 60 / 8 s base reload = 90.

Installed shells/min100

12 broadside guns x 60 / 7.2 s installed Artillery reload = 100.

Base fires/min10.8

12 HE shells x 60 / 8 s reload x 12% fire chance = 10.8.

Installed fires/min12

12 HE shells x 60 / 7.2 s installed reload x 12% fire chance = 12.

Torpedoes

Torpedo detectability0.8 km

Estimated torpedo reaction time4.5 s

detectability / (speed kt x 2.6 community game-speed factor).

Torpedo speed69 kt

Travel time to max range75.3 s

range / (speed kt x 2.6 community game-speed factor).

Tube count10

2 launchers x 5 tubes.

Per-side salvo5 torpedoes

tube count / 2 (symmetric port/starboard launcher layout; common on cruisers and battleships with deck torpedoes).

Full-salvo damage167,000

tube count x per-torpedo simulated damage (all torpedoes hitting).

Per-side salvo damage83,500

per-side salvo x per-torpedo simulated damage.

AA defense

Close-range AA DPS369

Sum across every AA aura on this ship of (aura.continuous_damage x 3.5 x aura.hit_probability). Here: (75×3.5×0.9) + (42×3.5×0.9) = 369. Covers AA-only mounts plus dual-purpose secondaries (Bismarck 105mm, USN 5"/38 cruiser secondaries) and dual-purpose main batteries (Sumner-class 5"/38, Akizuki-line 100mm). Formula validated against in-game captures on California, Sumner, Manfred von Richthofen, Dante Alighieri (exact) and within +/-17% on the remaining verified ships.

Maximum AA range5 km

Longest-reaching aura across AA-only + dual-purpose auras.

AA threat index1488

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 dispersion

Secondary dispersion typeStandard

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 @ 5 km315 m

5 km × 57 + 30 = 315 m.

Secondary battery firepower

Secondary DPM (per side)126,000

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: 6×2 100 mm (6/side) × 60/4 × 1400 = 126,000. Assumes every shell hits (real hit rate is lower; the Brawl matchup tool on the Compare page folds in dispersion + target armor).

Max HE alpha1400

Maximum HE damage per shell across secondary HE families. Best on this ship: 1400 from the 100 mm family.

Max HE fire chance6%

Maximum per-shell fire chance across secondary HE families (before target fire resistance is applied). Best on this ship: 6% from the 100 mm family.

Max HE pen17 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: 17 mm from the 100 mm family.

Armor

Hull HP 41,200, distributed across 5 hull zones, each with its own plate thicknesses, saturation cap, and pen thresholds. HP caps are the exact in-game values, not estimated.

Section	Plates	HP cap	Threats	Tactic
Bow	25 mm primary (range 20–40 mm)	1,800 (4% of HP)	Overmatched by 380mm+ (Gneisenau, Richelieu)Angle bounces 356mm25 mm: HE pens from 150mm+	Bow-tank fits behind this exterior plate. Saturation is FAST here; the cap is often only a few thousand HP.
Hull (midship)	130 mm primary (range 26–130 mm)	30,900 (75% of HP)	No common caliber overmatches130 mm: no common HE pens	Largest HP pool. Citadel sits behind these plates; thinner deck and side plating absorb the rest.
Stern	25 mm primary (range 25–100 mm)	1,500 (4% of HP)	Overmatched by 380mm+ (Gneisenau, Richelieu)Angle bounces 356mm25 mm: HE pens from 150mm+	Mirror of bow. Same fast saturation.
Citadel	120 mm primary (range 13–120 mm)	≈ 165,500 (effectively no cap)	Citadel pen ×0.10 damageOver-pen: ×0.10 damage	Effectively no cap; citadel pool sits at ~165k HP on every ship. Damage is gated by pen/over-pen multipliers instead (×0.10 direct pen, ×0.10 over-pen).
Superstructure	13 mm primary (range 13–130 mm)	2,400 (6% of HP)	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).
Turret (module, per magazine)	separate HP pool, does not drain ship HP	20,600 magazine HP	Magazine detonation1–30% chance · below ~75% HP	Per-turret powder-magazine HP. Detonation chance scales from 1% (no mag damage) to 30% (full mag damage); this range is the in-game value. Detonation can't roll while the ship is above ~75% HP (the standard detonation-protection threshold, not a per-ship stat). Smaller magazines saturate to the 30% ceiling faster.
Secondary mount (100 mm mount)	separate HP pool, does not drain ship HP	800 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest secondary on this ship. A mount destroyed at 0 HP is out for the rest of the battle; DCP does not repair destroyed mounts. Smaller (lighter-caliber) secondaries typically share the same HP value.
AA mount (37 mm mount)	separate HP pool, does not drain ship HP	200 per-mount HP	Destroyed at 0 HP	Per-mount HP for the heaviest AA on this ship. An AA mount destroyed at 0 HP stops shooting down planes for the rest of the battle; DCP does not repair destroyed mounts. HE shells specifically target AA mounts since the small-caliber HP pool falls fast.
Rudder (module)	separate HP pool, does not drain ship HP	12,400 module HP	Incapacitated at 0 HP	When module HP reaches 0 the rudder locks at its current angle until DCP repairs it. Repair via Damage Control Party.

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.

Shell ballistics chart

AP penetration, impact velocity, flight time and impact angle vs range. Click to load the interactive chart.

Exteriors

Skins & permanent camouflages

Every custom exterior Irian can equip, from in-game data.

DefaultThe ship’s standard exterior
Irian PinataDecorative

Irian

Irian Community Stats