Tier IXBattleship japan

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Iwami B

WoWS World of Warships Japan Battleship · Tier IX

Main Battery: 410 mm/50 10th Year Type Mod.A in a twin-gun turret; 4 turrets × 2 barrels; Range 22.3 km
Secondaries: 155 mm HE Type0
Secondaries: 100 mm HE Type 98; Range 6.95 km
Torpedoes: 610 mm Quad; 2 launchers × 4 tubes; Range 20 km

Iwami B Win Rate & Combat Stats

Sample of 453.6K players · as of 2026-08-06

BattlesWin rateAvg damage

EUBattles 52,561

52.6K52,561

Win rate

49.78%

#41 of 58

Avg damage

68,036

#39 of 58

ASIABattles 30,065

30.1K30,065

Win rate

50.28%

#42 of 58

Avg damage

65,558

#47 of 58

NABattles 23,058

23.1K23,058

Win rate

49.53%

#41 of 58

Avg damage

64,569

#46 of 58

Averages from our own crawled player sample, not official server-wide data. The sample skews toward active clan players, so its overall win rate runs about 1 point above the true server average. Battle counts are career totals and include games played before this ship’s past balance changes.

Survivability

Hit Points80,700

#13 of 65

Group avg 73,000

Flood Damage37%

Main Belt Armor356 mm

Deck Armor55 mm

Bow / Stern Armor32 mm

Ship Length255.2 m

Ship Width37.4 m

Main Battery

Main Guns4 × 2

Caliber410 mm

Firing Range22.3 km

#12 of 65

Group avg 20.5 km

Reload Time28.0 s

Rotation Time35.0 s

Max Dispersion244 m

Sigma2.10

Shell Types

AP Shell

Damage12,750

Shell Velocity834 m/s

Overmatch Threshold28.7 mm

Ricochet Angle45° / 60°

Normalization6°

Fuse Threshold68 mm

Air Drag0.34

Flight Time13.35 s

DPM218,571

#45 of 65

Group avg 236,095

HE Shell

Damage6,500

Shell Velocity834 m/s

Fire Chance30%

Penetration68 mm

Air Drag0.34

Flight Time13.37 s

DPM111,429

Torpedoes

Torpedo Tubes2

Speed62 knots

Range20.0 km

#1 of 12

Group avg 13.0 km

Damage20,966

#2 of 12

Group avg 16,375

Alpha Damage58,700

Splash Damage1,400

Flood Chance355%

Detectability2.50 km

Reload Time150.0 s

#10 of 12

Group avg 111.8 s

180° Rotation7.2 s

Arming Time1 s

Spread Angle4.8° / 16°

Torpedo Caliber610 mm

Tube Module HP1,200

Fuse Depth0.14 m

Secondary Battery

Secondary Guns11

Range7.0 km

Sigma1.00

Max Dispersion259.4 m

Accuracy★★★★☆ Excellent

Total DPM661,000

PJPA040_Shell_100mm_HE_C_Type_98(8×2)

Damage1,700

HE Penetration30 mm

Fire Chance6%

Rate of Fire20 rpm

PJPA095_Shell_155mm_HE_SG_Type_0(3×3)

Damage2,600

HE Penetration26 mm

Fire Chance10%

Rate of Fire5 rpm

AA Defense

Flak Bursts8

Flak Damage1,470

AA Ranges

2.5 km284 dps

5.8 km203 dps

Maneuverability

Max Speed28.2 knots

#48 of 65

Group avg 30.2 knots

Turning Radius880 m

#24 of 65

Group avg 894 m

Rudder Shift Time14.1 s

Engine Power145,000 hp

Displacement58,962 t

Power-to-Weight2.46 hp/t

Concealment

Max Surface Detection15.89 km

#27 of 65

Group avg 15.82 km

Min Surface Detection12.87 km

Air Detection10.00 km

Submarine Detection10.00 km

Consumables

Slot 1

Damage Control Party

Reload80 s

Duration10 s

Charges∞

Slot 2

Repair Party

Reload80 s

Duration28 s

Charges4

Heal Rate0.5%/s

Citadel10%

Non-Citadel50%

Armament

Depth Charge Airstrike

Reload30 s

Charges2

Strike Range0.5–10.0 km

Planes8

Flights2

Bomb Damage4200

Fire Chance24%

Modules

410 mm/50 10th Year Type Mod.A in a twin turret

Main Battery

Rate of Fire:2.1

Max AP Damage:12,750

Max HE Damage:6,500

Rotation Time:35s

Type90 mod. 1

Torpedoes

Range:0 km

Max Damage:20,966

Reload Time:0.4 knots

Torpedo Speed:62 knots

Iwami B.

Hull

AA Guns:62

Main Guns:4

Secondary Guns:11

HP:80,700

Range:19-508

Torpedo Tubes:2

Propulsion: 145,000 hp

Engine

Max Speed:28.2 knots

Type9 mod. 1

Fire Control

Range:0 km

Upgrades

Slot 1

Auxiliary Armaments Modification 1

AA mount survivability: +100%

Secondary battery survivability: +100%

Main Armaments Modification 1

Risk of main battery becoming incapacitated: -20%

Main battery survivability: +50%

Main battery repair time: -20%

Risk of torpedo tubes becoming incapacitated: -20%

Torpedo tubes survivability: +50%

Torpedo tubes repair time: -20%

Damage Control Party Modification 1

Consumable action time: +40%

Slot 2

Engine Room Protection

Risk of steering gears becoming incapacitated: -20%

Steering gears repair time: -20%

Risk of engine becoming incapacitated: -20%

Engine repair time: -20%

Damage Control System Modification 1

Risk of catching fire: -5%

Risk of flooding: -3%

Slot 3

Torpedo Tubes Modification 1

Risk of torpedo tubes becoming incapacitated: -40%

Torpedo tubes traverse speed: +20%

Torpedo speed: +5%

Aiming Systems Modification 1

Maximum main battery shell dispersion: -7%

Maximum secondary battery shell dispersion: -5%

Secondary battery firing range: +5%

Torpedo tubes traverse speed: +20%

AA Guns Modification 1

Priority AA sector preparation time: -20%

Secondary Battery Modification 1

Maximum secondary battery shell dispersion: -20%

Secondary battery firing range: +20%

Main Battery Modification 2

Main battery traverse speed: +15%

Slot 4

Airstrike Modification 1

Airstrike aircraft HP: +25%

Airstrike armament reload time: -20%

Depth charge damage: +15%

Steering Gears Modification 1

Rudder shift time: -20%

Propulsion Modification 1

Maximum reverse speed at full power: +140%

Time to reach full engine power when decelerating: -50%

Maximum forward speed at full power: +140%

Time to reach full engine power when accelerating: -50%

Damage Control System Modification 2

Fire extinguishing time: -15%

Flooding recovery time: -15%

Slot 5

Ship Consumables Modification 1

Ship consumable action time: +10%

Concealment System Modification 1

Squadron detectability range: -10%

Dispersion of shells fired by enemies attacking your ship: +5%

Ship's detectability range: -10%

Ship detectability for submarines when underwater: -10%

Torpedo Lookout System

Assured acquisition range of torpedoes: 1.8km

Slot 6

Auxiliary Armaments Modification 2

Continuous AA damage: +15%

Damage from AA shell explosions: +15%

Number of explosions produced by AA defense salvos when the Defensive AA Fire consumable is active: +2

Secondary battery reload time: -20%

Gun Fire Control System Modification 2

Main battery firing range: +16%

Torpedo Tubes Modification 2

Risk of torpedo tubes becoming incapacitated: +50%

Torpedo tube reload time: -15%

Main Battery Modification 3

Main battery traverse speed: -13%

Main battery reload time: -12%

More:All Tier IX ships All Battleships Japan ships

Iwami B

Specifications

Iwami B Win Rate & Combat Stats

Survivability

Main Battery

Torpedoes

Secondary Battery

AA Defense

Maneuverability

Concealment

Consumables

Ballistics

Armor Model

Overview

Modules

410 mm/50 10th Year Type Mod.A in a twin turret

Main Battery

Type90 mod. 1

Torpedoes

Iwami B.

Hull

Propulsion: 145,000 hp

Engine

Type9 mod. 1

Fire Control

Upgrades

Slot 1

Auxiliary Armaments Modification 1

Main Armaments Modification 1

Damage Control Party Modification 1

Slot 2

Engine Room Protection

Damage Control System Modification 1

Slot 3

Torpedo Tubes Modification 1

Aiming Systems Modification 1

AA Guns Modification 1

Secondary Battery Modification 1

Main Battery Modification 2

Slot 4

Airstrike Modification 1

Steering Gears Modification 1

Propulsion Modification 1

Damage Control System Modification 2

Slot 5

Ship Consumables Modification 1

Concealment System Modification 1

Torpedo Lookout System

Slot 6

Auxiliary Armaments Modification 2

Gun Fire Control System Modification 2

Torpedo Tubes Modification 2

Main Battery Modification 3

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