Iwami

13.9

Battleship | Japan | Tier IX

Tech Tree Position

Battle Levels

12345678910

13.9

Battleship | Japan | Tier IX

Tech Tree Position

Battle Levels

12345678910

IX

Special

Iwami — Japanese special 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 dual-purpose 100 mm main battery guns, improved anti-aircraft armament, and torpedo launchers.

Iwami was first released for sale on 8th of July 2022.

Modules

	Rate of Fire (shots/min)	180° Turn Time (sec)	Maximum Dispersion (m)	Maximum HE Shell Damage (HP)	Chance of Fire on Target Caused by HE Shell (%)	Maximum AP Shell Damage (HP)		Research price (exp)	Purchase price ()
410 mm/50 10th Year Type Mod.A in a twin turret	2.1	35	244	6,500	30	12,750		0	0

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
Iwami	80,700	19	508	4	8/3	18/24/12/8	2			0	0

	Rate of Fire (shots/min)	Torpedo Tubes Reload Time (sec)	180° Turn Time (sec)	Maximum Damage (HP)	Torpedo Speed (knot)	Torpedo Range (km)		Research price (exp)	Purchase price ()
Type90 mod. 1	0.4	150	7.2	20,966	62	20		0	0

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Type9 mod. 1		0		0	0

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 145,000 hp	28.2		0	0

Compatible Upgrades

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

Player Opinion

Performance

Warning: The data presented in the AA Defense sidebar section may be incorrect.
Refer to the in-game Port screens for more useful data.

Iwami is a premium Japanese Tier IX battleship armed with eight 410 mm guns. Her decent accuracy and good range complement the traditional sniper play style of Japanese battleships.

Armament:

Iwami carries eight 410 mm guns in four dual turrets. They have a range of 22.3 km, but does not have a spotter plane to increase the range further..

She fires the same shells found on Hizen, with decent alpha damage, good velocity, and good penetration. Her AP shells can overmatch 27mm armor, meaning her shells will be able to penetrate the bow/stern of Tier IX cruisers.. Her HE shells have 30% fire chance and 68 mm of penetration. Because of the overmatch on her 410 mm guns, good reload and accuracy, players should mainly fire AP at cruisers and capital ships while switching to HE for angled targets.

Iwami’s guns have good dispersion and a great sigma value at 2.1, meaning her shells will generally have tight groupings. However, due to having only 8 guns, her accuracy can be frustrating due to the low amount of shells per salvo. This can be offset by equipping Main Battery Modification 3 bringing the reload down to 24.6 seconds Her turrets have a 180-degree turn time of 33.5 seconds. In addition, Iwami has good gun angles, and can fire all guns without showing too much side.

Iwami carries eight 610 mm torpedo tubes in two quad launchers. These are the same torpedoes found on Shimakaze, specifically the 20 km Type 93 torpedoes. They have average speed, bad detection, and 20,967 alpha damage. While the launch angles are not terrible, they are more suited for launching while kiting away from enemy threats. These torpedoes are best used to fire at key areas as area denial but also can be used in close quarter situations.

Survivabillity:

Iwami’s hull is visibly similar to Izumo and Hizen, but with a different armor scheme. Her bow and stern are 32 mm thick and she has a 50 mm armored deck. Her armor is sufficient at shattering most HE shells and protects her from AP shells smaller than 461 mm in caliber when sufficiently angled. Her armor belt is 356 mm thick and will bounce all AP shells when correctly angled. Her citadel is long and has the same ‘cheek’ (the part of the bow that meets the middle belt section) weakness as other high tier Japanese battleships. At closer ranges, high caliber AP shells can still citadel her through the ‘cheek’ even when she is otherwise angled.

Her surface concealment is decent at 12.9 km and she has a good HP pool of 80,700. Her 37% torpedo damage reduction is high for her tier. Iwami can play at medium ranges without much risk of dying quickly.

Maneuverability:

Iwami has average maneuverability characteristics, with a top speed of 28.2 knots. Her rudder shift time is good at 14.1 seconds, and her turning circle is slightly better than average at 880 m. Players can reliably dodge most torpedo threats as long as they are aware of the presence of a torpedo destroyer.

Secondaries:

Iwami features a secondary armament which consists of sixteen 100 mm guns. They are the same guns found on Harugumo which have 30 mm HE penetration and a fast rate of fire of 3 seconds. She also has nine 155 mm secondary guns. A secondary build is not recommended on Iwami due to weakness of her armor at close ranges and the lack of increased range and accuracy on the secondary guns.

Anti-Aircraft:

Iwami has poor long- and short-range AA DPS (203 and 283 respectively) with no mid-range AA aura. While she has eight flak clouds, her low DPS means she can’t stop an aircraft carrier strike by herself. Grouping up with allied ships to overlap Anti-Aircraft auras is recommended in games with carriers.

Battle Performance:

Iwami fills the classic sniper battleship role, positioning around 14 km away from key areas and enemy capital ships. Captains should provide crossfire onto enemy battleships and cruisers by positioning themselves across from friendly battleships or by holding angles towards island positions. Her torpedoes provide another tool for area denial, and should be launched towards cap circles and choke points throughout the battle. Iwami’s poor close range armor scheme and average speed means she is not a brawler.

Pros:

Good HP pool
Decent torpedo protection
Good reload time
Good dispersion
Good firing angles
Access to 20 km torpedoes
Decent concealment

Cons:

Citadel "cheek" is easy to hit
Lower gun count
Torpedoes have high detection
Weak AA defenses

Research

As a premium ship, Iwami has no module upgrades to research.

Optimal Configuration

Upgrades

The recommended upgrades are:

Slot 1: Main Armaments Modification 1
Slot 2: Damage Control System Modification 1 
Slot 3: Aiming Systems Modification 1
Slot 4: Steering Gears Modification 1
Slot 5: Concealment System Modification 1 
Slot 6: Main Battery Modification 3

Commander Skills

Recommended Commander Skills
Cost (points)	Attack			Defense
1	Gun Feeder -40% time to switch shell type. ★	Demolition Expert +1% chance of main and secondary HE shells causing a fire +15% to the fragmentation damage area of HE ordnance when firing at submarines.	Consumables Specialist −7.5% cooldown time of all Consumables except: Damage Control Party , Repair Party .	Emergency Repair Specialist -3% cooldown time of Damage Control Party  and Repair Party . ★★	Incoming Fire Alert Receive a warning about a salvo fired at your ship from more than 4.5 km.	Preventive Maintenance −30% chance of main armament, engines, steering becoming incapacitated +15% to HP of secondary and AA guns. ★
2	Grease the Gears +20% main turret traverse speed. ★★★	Inertial Fuse for HE Shells +25% armor penetration of HE shells. Base fire chance reduced by half.	Brisk So long as the ship remains undetected: +10% ship speed.	Vigilance +25% detection range of enemy torpedoes +7% damage reduction of Torpedo Protection System. . ★★	Priority Target The detection indicator will show the number of enemies targeting you with main battery. ★★	AAA & ASW Expert +15% continuous AAA and flak damage . +10% damage inflicted by depth charges. While AAA is active: −40% ship consumables reload time..
3	Super-Heavy AP Shells +7.5% AP shell damage −10% fire and flood damage received +25% fire and flood duration.	Long-Range Secondary Battery Shells +20% secondary battery firing range.	Adrenaline Rush -0.2% reload time of all armaments per 1% HP lost +0.2% AA continuous damage per 1% HP lost. ★★★	Basics of Survivability -15% repair, fire, and flooding duration. ★★★	Improved Repair Party Readiness −0.8% reload time of Repair Party each time your ship receives potential damage equal to 100% of the ship's base HP. After receiving 2M HP potential damage: +1 charge of Repair Party ..	Focus Fire Training In an active priority AA sector: • +1.5% (to 5%) immediate damage. • +25% continuous damage. • +1 flak burst per salvo. −10% aircraft preparation time. −15% reload time of Airstrike armament..
4	Furious 1st fire / flood −10% Main battery reload time 2nd etc. (up to 5), each −5% Main battery reload time	Manual Secondary Battery Aiming −10% secondary battery reload time. −10% secondary battery dispersion. When firing at a manually selected target: dispersion gradually improves from -25% to -50%.	Close Quarters Combat -10% reload time of main battery if an enemy ship is spotted within secondary range.	Emergency Repair Expert Damage Control Party  and Repair Party : +1 charge (each). +10% action time . ★★★	Concealment Expert -10% detectability range of the ship. ★★★	Fire Prevention Expert -10% risk of fire. Three fires maximum. ★★★
Key: ★★★ - Extremely Useful ★★ - Frequently Useful ★ - Occasionally Useful No stars - Not Useful

Consumables

Iwami equips the following consumables:

Slot 1: Damage Control Party 
Slot 2: Repair Party  – 4 charges

Camouflage

As a premium ship, Iwami comes with Default permanent camouflage and a set of permanent combat bonuses.

Signals

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation. ★	Juliet Yankee Bissotwo -20% to flooding duration. ★	India Yankee -20% to fire duration. ★★★	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding.	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating.
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating.	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time. ★	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts.	Sierra Mike +5% to the ship's maximum speed. ★★★	November Foxtrot -5% reload time on all consumables. ★★	India Delta +20% to the amount of HP recovered when Repair Party  is used. ★★★
X-Ray Papa Unaone +10% action time of a Smoke Generator .	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

Note: Use of the Juliet Charlie signal makes detonation impossible.

Gallery

References

Ships of Japan

Destroyers	II Tachibana • II Umikaze • II Tachibana Lima • III Wakatake • IV Isokaze • V Minekaze • V Fūjin • V Kamikaze • V Kamikaze R • V Mutsuki • VI [[Ship:Mutsuki (< 01.12.2016)\|Mutsuki (< 01.12.2016)]] • VI Fubuki • VI Hatsuharu • VI Shinonome B • VI Shinonome • VII [[Ship:Hatsuharu (< 01.12.2016)\|Hatsuharu (< 01.12.2016)]] • VII Akatsuki • VII Shiratsuyu • VII Yūdachi • VIII [[Ship:Fubuki (< 01.12.2016)\|Fubuki (< 01.12.2016)]] • VIII Akizuki • VIII Kagerō • VIII Asashio • VIII HSF Harekaze II • VIII Asashio B • VIII HSF Harekaze • VIII AL Yukikaze • IX [[Ship:Kagerō (< 01.12.2016)\|Kagerō (< 01.12.2016)]] • IX Yūgumo • IX Kitakaze • IX Minegumo • IX STAR Kitakaze • X Shimakaze • X Harugumo • X Hayate • X AL Shimakaze • X [[Ship:[Shimakaze]\|[Shimakaze]]] • ★ Yamagiri
Cruisers	I Hashidate • II Chikuma • III Tenryū • III Katori • IV Yūbari • IV Kuma • IV Iwaki Alpha • V Furutaka • V Agano • V Yahagi • VI Aoba • VI Gokase • VII Myōkō • VII Omono • VII Tokachi • VII Maya • VII ARP Myōkō • VII ARP Ashigara • VII ARP Haguro • VII Southern Dragon • VII Eastern Dragon • VII ARP Nachi • VIII Mogami • VIII Tone • VIII Atago • VIII Shimanto • VIII Atago B • VIII ARP Takao • VIII ARP Maya • VIII Tone 2 • VIII Tone 3 • IX Ibuki • IX Takahashi • IX Azuma • IX AL Azuma • IX Chikuma II • IX Chikuma II Golden • IX BA Takahashi • X Zaō • X Yodo • X Yoshino • X Yoshino B • X Kitakami • X Zaō CLR • X [[Ship:[Zaō]\|[Zaō]]]
Battleships	II Mikasa • III Kawachi • IV Myōgi • IV Ishizuchi • V Kongō • V ARP Kongō • V ARP Kirishima • V ARP Haruna • V ARP Hiei • V HSF Hiei • VI Fusō • VI Mutsu • VI Ise • VI Ise 2 • VI Ise 3 • VII Nagato • VII Ashitaka • VII Hyūga • VIII Amagi • VIII Yumihari • VIII Kii • VIII Ignis Purgatio • VIII Ragnarok • IX Izumo • IX Adatara • IX Musashi • IX Hizen • IX Iwami • IX Daisen • IX Tsurugi • IX Iwami B • X Yamato • X Bungo • X Shikishima • X ARP Yamato • X [[Ship:[Yamato]\|[Yamato]]] • ★ Satsuma
Aircraft Carriers	IV [[Ship:Hōshō (< 23.01.2019)\|Hōshō (< 23.01.2019)]] • IV Hōshō • V [[Ship:Zuihō (< 23.01.2019)\|Zuihō (< 23.01.2019)]] • VI [[Ship:Ryūjō (< 23.01.2019)\|Ryūjō (< 23.01.2019)]] • VI Ryūjō • VII [[Ship:Hiryū (< 23.01.2019)\|Hiryū (< 23.01.2019)]] • VII [[Ship:Kaga (< 23.01.2019)\|Kaga (< 23.01.2019)]] • VIII [[Ship:Shōkaku (< 23.01.2019)\|Shōkaku (< 23.01.2019)]] • VIII Shōkaku • VIII Kaga • VIII Kaga B • IX [[Ship:Taihō (< 23.01.2019)\|Taihō (< 23.01.2019)]] • X [[Ship:Hakuryū (< 23.01.2019)\|Hakuryū (< 23.01.2019)]] • X Hakuryū • X Shinano • X [[Ship:[Hakuryū]\|[Hakuryū]]] • ★ Sekiryu

Battleships

Netherlands
U.S.A.	III South Carolina • IV Wyoming • IV Arkansas Beta • V New York • V Oklahoma • V Texas • VI New Mexico • VI Arizona • VI W. Virginia '41 • VII Colorado • VII Florida • VII West Virginia '44 • VII California • VII Colorado 2 • VIII North Carolina • VIII Kansas • VIII Nebraska • VIII Alabama • VIII Massachusetts • VIII Alabama VL • VIII Constellation • VIII Massachusetts B • VIII Alabama ST • VIII North Carolina CLR • VIII Volunteer State • VIII North Carolina 2 • IX Iowa • IX Minnesota • IX Delaware • IX Missouri • IX Kearsarge • IX Illinois • IX Kearsarge B • IX Georgia • IX Iowa 2 • X Montana • X Vermont • X Louisiana • X Ohio • X Rhode Island • X Wisconsin • X BA Montana • X [[Ship:[Montana]\|[Montana]]] • X Montana 2 • X Utah • ★ Maine
Europe	V Viribus Unitis • IX Karl XIV Johan
Germany	III Nassau • III Von der Tann • III König Albert • IV Kaiser • IV Moltke • V König • V Derfflinger • VI Bayern • VI Mackensen • VI Prinz Eitel Friedrich • VII Gneisenau • VII Prinz Heinrich • VII Scharnhorst • VII AL Prinz Heinrich • VII Scharnhorst B • VII Scharnhorst '43 • VIII Tirpitz • VIII Bismarck • VIII Zieten • VIII Odin • VIII Brandenburg • VIII Anhalt • VIII Brandenburg B • VIII Tirpitz B • VIII BA Tirpitz • IX Friedrich der Grosse • IX Prinz Rupprecht • IX Pommern • IX Pommern B • IX Prinz Sigismund • X Grosser Kurfürst • X Schlieffen • X Preussen • X Mecklenburg • X [[Ship:[Grosser Kurfürst]\|[Grosser Kurfürst]]] • ★ Hannover
U.S.S.R.	III Knyaz Suvorov • IV Imperator Nikolai I • IV Gangut • V Pyotr Velikiy • V Oktyabrskaya Revolutsiya • VI Izmail • VI Novorossiysk • VII Sinop • VII Poltava • VIII Vladivostok • VIII Lenin • VIII Borodino • VIII V. I. Lenin • IX Sovetsky Soyuz • IX Navarin • IX AL Sov. Rossiya • X Kremlin • X Slava • ★ Admiral Ushakov
Italy	IV Dante Alighieri • V Conte di Cavour • V Giulio Cesare • VI Andrea Doria • VII Francesco Caracciolo • VIII Vittorio Veneto • VIII Roma • VIII AL Littorio • IX Lepanto • IX Marco Polo • IX Giuseppe Verdi • X Cristoforo Colombo • X Ruggiero di Lauria • X Sicilia • X Amerigo Vespucci
Pan-America	V Rio de Janeiro • VIII Ipiranga • VIII Atlântico • IX Los Andes • X Libertad • X Comodoro
Japan	II Mikasa • III Kawachi • IV Myōgi • IV Ishizuchi • V Kongō • V ARP Kongō • V ARP Kirishima • V ARP Haruna • V ARP Hiei • V HSF Hiei • VI Fusō • VI Mutsu • VI Ise • VI Ise 2 • VI Ise 3 • VII Nagato • VII Ashitaka • VII Hyūga • VIII Amagi • VIII Yumihari • VIII Kii • VIII Ignis Purgatio • VIII Ragnarok • IX Izumo • IX Adatara • IX Musashi • IX Hizen • IX Iwami • IX Daisen • IX Tsurugi • IX Iwami B • X Yamato • X Bungo • X Shikishima • X ARP Yamato • X [[Ship:[Yamato]\|[Yamato]]] • ★ Satsuma
U.K.	III Bellerophon • III Indefatigable • III Dreadnought • IV Orion • IV Queen Mary • V Iron Duke • V Tiger • V Agincourt • VI Warspite • VI Queen Elizabeth • VI Renown • VI Repulse • VI Repulse B • VII King George V • VII Rooke • VII Hood • VII Nelson • VII Duke of York • VII Collingwood • VII Renown '44 • VII Rodney • VIII Monarch • VIII Hawke • VIII Vanguard • IX Lion • IX Duncan • IX Marlborough • IX Scarlet Thunder • X Conqueror • X St. Vincent • X Thunderer • X Incomparable • X Cumberland • X [[Ship:[Conqueror]\|[Conqueror]]] • ★ Devastation
France	III Turenne • IV Courbet • V Bretagne • VI Normandie • VI Dunkerque • VI Dunkerque B • VII Lyon • VII Strasbourg • VIII Richelieu • VIII Gascogne • VIII Champagne • VIII Flandre • VIII Picardie • VIII [[Ship:[Richelieu]\|[Richelieu]]] • IX Alsace • IX Jean Bart • IX Jean Bart B • X République • X Bourgogne • ★ Patrie
Pan-Asia	IX Bajie • IX Wujing • IX Sun Yat-Sen • IX Louchuan • IX Xuan Wu
Spain	IX Victoria
Commonwealth	VII Yukon

Games

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Tools

Iwami

Modules

Compatible Upgrades