Ship:Iwami B

IX

18,000 doubloons

Iwami B — Japan Premium Tier IX Battleship.

One of the battleship projects developed in Japan in the mid-1930s. The ship was supposed to have four twin-gun main battery turrets. She had reinforced 100 mm dual-purpose artillery, improved anti-aircraft armament, and torpedo launchers.

Pros

• High firing accuracy.
• Torpedo armament available.
• Long-range torpedoes.

Cons

• Low speed.
• High torpedo detectability.
• Reduced action time of Damage Control Party consumable.

Ship Stats

Hull Information

SURVIVABILITY
• Hit Points	80700
• Torpedo protection damage reduction (%)	37

ARMOR DETAIL
• Belt (mm)	356
• Deck (mm)	32
• Superstructure (mm)	19
• Extremities (mm)	32

MANEUVERABILITY
• Maximum speed (kt)	28.2
• Turning circle radius (m)	880
• Rudder-shift time (sec)	14.1

CONCEALMENT
• Detectability by sea (km)	15.89
• Detectability by air (km)	10.0
• Detectability after firing main guns in smoke (km)	15.94
• Detectability by depths (km)	10.0

Main Battery

MAIN BATTERY
• Arrangement	4×2 410mm
• Firing range (km)	22.3
• Reload time (sec)	28.0
• Rate of fire (shots/min)	2.1
• 180° turn time (sec)	35.0

DISPERSION
• Dispersion type	IJN BB dispersion
• Dispersion formula	Dispersion (m) = 7.2 × range(km) + 84
• Sigma	2.1
• Maximum dispersion (m)	244
• Dispersion at 5 km	120
• Dispersion at 10 km	156
• Dispersion at 15 km	192
• Dispersion at 20 km	228
• Dispersion at 22.3 km	245

HE SHELL
• Name	410 mm HE Type 01
• Maximum damage	6500
• Fire chance (%)	30.0%
• Shell velocity (m/s)	834
• Shell weight (kg)	1016
• Penetration (mm)	68

AP SHELL
• Name	410 mm AP/APC Type 01
• Maximum damage	12750
• Shell velocity (m/s)	834
• Shell weight (kg)	1020
• Fuse time (sec)	0.033
• Ricochet start (°)	45
• Always ricochet (°)	60
• Normalisation (°)	6
• Arming threshold (mm)	68

Torpedoes

TORPEDO LAUNCHERS
• Number of launchers	2x4
• Torpedo name	Type 93
• Reload time (sec)	150.0
• 180° turn time (sec)	7.2
• Damage	20967
• Range (km)	20
• Speed (kt)	62
• Detectability (km)	2.5
• Flooding chance (%)	3.55%

Secondary Battery

SECONDARY BATTERY
• Secondary battery range (km)	7.0

SECONDARY ARMAMENT 1
• Shell type	HE
• Name	100 mm HE Type 98
• Arrangement	8x2 100mm
• Rate of fire (shots/min)	20.0
• Maximum damage	1700
• Shell velocity (m/s)	1000
• Penetration (mm)	30
• Fire chance (%)	6.0%

SECONDARY ARMAMENT 2
• Shell type	HE
• Name	155 mm HE Type0
• Arrangement	3x3 155mm
• Rate of fire (shots/min)	5.0
• Maximum damage	2600
• Shell velocity (m/s)	925
• Penetration (mm)	26
• Fire chance (%)	10.0%

Airstrike

ASW AIRSTRIKE (DEPTH CHARGES)
• Range (km)	10
• Minimum range (km)	0.5
• Reload time (sec)	30.0
• Number of aircraft	1
• Depth charges in payload	2
• Damage	4200
• Deployment	Manual

AA Defense

AA ARMAMENT	MOUNTS × BARRELS
100 mm	8 × 2
25 mm	12 × 3 + 24 × 2 + 18 × 1

Continuous damage — average DPS within each action zone

RANGE	DPS	HIT CHANCE	ACTION ZONE (km)
Short-range	283.5	85%	2.5
Long-range	203	75%	5.8

Damage by shell explosions

EXPLOSIONS / SALVO	DAMAGE	HIT CHANCE	ACTION ZONE (km)
8	1470	75%	3.5–5.8

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6

Consumables

• Slot 1: Damage Control Party  (10.0s action, 80.0s cooldown)
• Slot 2: Repair Party  (4 charges, 28.0s action, 80.0s cooldown, 403.5 hp/s)

Gallery

WoWs Gallery

Iwami B in her default permanent camouflage.

Ship Change Log

• Preliminary characteristics.
• Update 12.6:
  • Available for testing by supertesters in the game starting from Update 12.6.
• Update 12.9:
  • Available for purchase in the Premium Store during the Black Friday 2023 sale during Update 12.9. Could also drop from Black Friday containers.